Merge pull request 'Add GPL-3.0 licensing and prepare for a public repository' (#4 ) from public-repo-prep into main

Reviewed-on: #4 Reviewed-by: branderson <brad@branderson.io>
Add GPL-3.0 licensing and prepare for a public repository
2026-10-16 14:55:39 -07:00 · 2026-10-13 20:54:23 -07:00 · 2026-10-07 23:52:28 -07:00 · 2026-10-07 23:29:08 -07:00 · 2026-10-07 23:19:28 -07:00 · 2026-10-07 23:10:02 -07:00
36 changed files with 1580 additions and 27 deletions
@@ -0,0 +1,674 @@
                    GNU GENERAL PUBLIC LICENSE
                       Version 3, 29 June 2007
 Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
 Everyone is permitted to copy and distribute verbatim copies
 of this license document, but changing it is not allowed.
                            Preamble
  The GNU General Public License is a free, copyleft license for
 software and other kinds of works.
  The licenses for most software and other practical works are designed
 to take away your freedom to share and change the works.  By contrast,
 the GNU General Public License is intended to guarantee your freedom to
 share and change all versions of a program--to make sure it remains free
 software for all its users.  We, the Free Software Foundation, use the
 GNU General Public License for most of our software; it applies also to
 any other work released this way by its authors.  You can apply it to
 your programs, too.
  When we speak of free software, we are referring to freedom, not
 price.  Our General Public Licenses are designed to make sure that you
 have the freedom to distribute copies of free software (and charge for
 them if you wish), that you receive source code or can get it if you
 want it, that you can change the software or use pieces of it in new
 free programs, and that you know you can do these things.
  To protect your rights, we need to prevent others from denying you
 these rights or asking you to surrender the rights.  Therefore, you have
 certain responsibilities if you distribute copies of the software, or if
 you modify it: responsibilities to respect the freedom of others.
  For example, if you distribute copies of such a program, whether
 gratis or for a fee, you must pass on to the recipients the same
 freedoms that you received.  You must make sure that they, too, receive
 or can get the source code.  And you must show them these terms so they
 know their rights.
  Developers that use the GNU GPL protect your rights with two steps:
 (1) assert copyright on the software, and (2) offer you this License
 giving you legal permission to copy, distribute and/or modify it.
  For the developers' and authors' protection, the GPL clearly explains
 that there is no warranty for this free software.  For both users' and
 authors' sake, the GPL requires that modified versions be marked as
 changed, so that their problems will not be attributed erroneously to
 authors of previous versions.
  Some devices are designed to deny users access to install or run
 modified versions of the software inside them, although the manufacturer
 can do so.  This is fundamentally incompatible with the aim of
 protecting users' freedom to change the software.  The systematic
 pattern of such abuse occurs in the area of products for individuals to
 use, which is precisely where it is most unacceptable.  Therefore, we
 have designed this version of the GPL to prohibit the practice for those
 products.  If such problems arise substantially in other domains, we
 stand ready to extend this provision to those domains in future versions
 of the GPL, as needed to protect the freedom of users.
  Finally, every program is threatened constantly by software patents.
 States should not allow patents to restrict development and use of
 software on general-purpose computers, but in those that do, we wish to
 avoid the special danger that patents applied to a free program could
 make it effectively proprietary.  To prevent this, the GPL assures that
 patents cannot be used to render the program non-free.
  The precise terms and conditions for copying, distribution and
 modification follow.
                       TERMS AND CONDITIONS
  0. Definitions.
  "This License" refers to version 3 of the GNU General Public License.
  "Copyright" also means copyright-like laws that apply to other kinds of
 works, such as semiconductor masks.
  "The Program" refers to any copyrightable work licensed under this
 License.  Each licensee is addressed as "you".  "Licensees" and
 "recipients" may be individuals or organizations.
  To "modify" a work means to copy from or adapt all or part of the work
 in a fashion requiring copyright permission, other than the making of an
 exact copy.  The resulting work is called a "modified version" of the
 earlier work or a work "based on" the earlier work.
  A "covered work" means either the unmodified Program or a work based
 on the Program.
  To "propagate" a work means to do anything with it that, without
 permission, would make you directly or secondarily liable for
 infringement under applicable copyright law, except executing it on a
 computer or modifying a private copy.  Propagation includes copying,
 distribution (with or without modification), making available to the
 public, and in some countries other activities as well.
  To "convey" a work means any kind of propagation that enables other
 parties to make or receive copies.  Mere interaction with a user through
 a computer network, with no transfer of a copy, is not conveying.
  An interactive user interface displays "Appropriate Legal Notices"
 to the extent that it includes a convenient and prominently visible
 feature that (1) displays an appropriate copyright notice, and (2)
 tells the user that there is no warranty for the work (except to the
 extent that warranties are provided), that licensees may convey the
 work under this License, and how to view a copy of this License.  If
 the interface presents a list of user commands or options, such as a
 menu, a prominent item in the list meets this criterion.
  1. Source Code.
  The "source code" for a work means the preferred form of the work
 for making modifications to it.  "Object code" means any non-source
 form of a work.
  A "Standard Interface" means an interface that either is an official
 standard defined by a recognized standards body, or, in the case of
 interfaces specified for a particular programming language, one that
 is widely used among developers working in that language.
  The "System Libraries" of an executable work include anything, other
 than the work as a whole, that (a) is included in the normal form of
 packaging a Major Component, but which is not part of that Major
 Component, and (b) serves only to enable use of the work with that
 Major Component, or to implement a Standard Interface for which an
 implementation is available to the public in source code form.  A
 "Major Component", in this context, means a major essential component
 (kernel, window system, and so on) of the specific operating system
 (if any) on which the executable work runs, or a compiler used to
 produce the work, or an object code interpreter used to run it.
  The "Corresponding Source" for a work in object code form means all
 the source code needed to generate, install, and (for an executable
 work) run the object code and to modify the work, including scripts to
 control those activities.  However, it does not include the work's
 System Libraries, or general-purpose tools or generally available free
 programs which are used unmodified in performing those activities but
 which are not part of the work.  For example, Corresponding Source
 includes interface definition files associated with source files for
 the work, and the source code for shared libraries and dynamically
 linked subprograms that the work is specifically designed to require,
 such as by intimate data communication or control flow between those
 subprograms and other parts of the work.
  The Corresponding Source need not include anything that users
 can regenerate automatically from other parts of the Corresponding
 Source.
  The Corresponding Source for a work in source code form is that
 same work.
  2. Basic Permissions.
  All rights granted under this License are granted for the term of
 copyright on the Program, and are irrevocable provided the stated
 conditions are met.  This License explicitly affirms your unlimited
 permission to run the unmodified Program.  The output from running a
 covered work is covered by this License only if the output, given its
 content, constitutes a covered work.  This License acknowledges your
 rights of fair use or other equivalent, as provided by copyright law.
  You may make, run and propagate covered works that you do not
 convey, without conditions so long as your license otherwise remains
 in force.  You may convey covered works to others for the sole purpose
 of having them make modifications exclusively for you, or provide you
 with facilities for running those works, provided that you comply with
 the terms of this License in conveying all material for which you do
 not control copyright.  Those thus making or running the covered works
 for you must do so exclusively on your behalf, under your direction
 and control, on terms that prohibit them from making any copies of
 your copyrighted material outside their relationship with you.
  Conveying under any other circumstances is permitted solely under
 the conditions stated below.  Sublicensing is not allowed; section 10
 makes it unnecessary.
  3. Protecting Users' Legal Rights From Anti-Circumvention Law.
  No covered work shall be deemed part of an effective technological
 measure under any applicable law fulfilling obligations under article
 11 of the WIPO copyright treaty adopted on 20 December 1996, or
 similar laws prohibiting or restricting circumvention of such
 measures.
  When you convey a covered work, you waive any legal power to forbid
 circumvention of technological measures to the extent such circumvention
 is effected by exercising rights under this License with respect to
 the covered work, and you disclaim any intention to limit operation or
 modification of the work as a means of enforcing, against the work's
 users, your or third parties' legal rights to forbid circumvention of
 technological measures.
  4. Conveying Verbatim Copies.
  You may convey verbatim copies of the Program's source code as you
 receive it, in any medium, provided that you conspicuously and
 appropriately publish on each copy an appropriate copyright notice;
 keep intact all notices stating that this License and any
 non-permissive terms added in accord with section 7 apply to the code;
 keep intact all notices of the absence of any warranty; and give all
 recipients a copy of this License along with the Program.
  You may charge any price or no price for each copy that you convey,
 and you may offer support or warranty protection for a fee.
  5. Conveying Modified Source Versions.
  You may convey a work based on the Program, or the modifications to
 produce it from the Program, in the form of source code under the
 terms of section 4, provided that you also meet all of these conditions:
    a) The work must carry prominent notices stating that you modified
    it, and giving a relevant date.
    b) The work must carry prominent notices stating that it is
    released under this License and any conditions added under section
    7.  This requirement modifies the requirement in section 4 to
    "keep intact all notices".
    c) You must license the entire work, as a whole, under this
    License to anyone who comes into possession of a copy.  This
    License will therefore apply, along with any applicable section 7
    additional terms, to the whole of the work, and all its parts,
    regardless of how they are packaged.  This License gives no
    permission to license the work in any other way, but it does not
    invalidate such permission if you have separately received it.
    d) If the work has interactive user interfaces, each must display
    Appropriate Legal Notices; however, if the Program has interactive
    interfaces that do not display Appropriate Legal Notices, your
    work need not make them do so.
  A compilation of a covered work with other separate and independent
 works, which are not by their nature extensions of the covered work,
 and which are not combined with it such as to form a larger program,
 in or on a volume of a storage or distribution medium, is called an
 "aggregate" if the compilation and its resulting copyright are not
 used to limit the access or legal rights of the compilation's users
 beyond what the individual works permit.  Inclusion of a covered work
 in an aggregate does not cause this License to apply to the other
 parts of the aggregate.
  6. Conveying Non-Source Forms.
  You may convey a covered work in object code form under the terms
 of sections 4 and 5, provided that you also convey the
 machine-readable Corresponding Source under the terms of this License,
 in one of these ways:
    a) Convey the object code in, or embodied in, a physical product
    (including a physical distribution medium), accompanied by the
    Corresponding Source fixed on a durable physical medium
    customarily used for software interchange.
    b) Convey the object code in, or embodied in, a physical product
    (including a physical distribution medium), accompanied by a
    written offer, valid for at least three years and valid for as
    long as you offer spare parts or customer support for that product
    model, to give anyone who possesses the object code either (1) a
    copy of the Corresponding Source for all the software in the
    product that is covered by this License, on a durable physical
    medium customarily used for software interchange, for a price no
    more than your reasonable cost of physically performing this
    conveying of source, or (2) access to copy the
    Corresponding Source from a network server at no charge.
    c) Convey individual copies of the object code with a copy of the
    written offer to provide the Corresponding Source.  This
    alternative is allowed only occasionally and noncommercially, and
    only if you received the object code with such an offer, in accord
    with subsection 6b.
    d) Convey the object code by offering access from a designated
    place (gratis or for a charge), and offer equivalent access to the
    Corresponding Source in the same way through the same place at no
    further charge.  You need not require recipients to copy the
    Corresponding Source along with the object code.  If the place to
    copy the object code is a network server, the Corresponding Source
    may be on a different server (operated by you or a third party)
    that supports equivalent copying facilities, provided you maintain
    clear directions next to the object code saying where to find the
    Corresponding Source.  Regardless of what server hosts the
    Corresponding Source, you remain obligated to ensure that it is
    available for as long as needed to satisfy these requirements.
    e) Convey the object code using peer-to-peer transmission, provided
    you inform other peers where the object code and Corresponding
    Source of the work are being offered to the general public at no
    charge under subsection 6d.
  A separable portion of the object code, whose source code is excluded
 from the Corresponding Source as a System Library, need not be
 included in conveying the object code work.
  A "User Product" is either (1) a "consumer product", which means any
 tangible personal property which is normally used for personal, family,
 or household purposes, or (2) anything designed or sold for incorporation
 into a dwelling.  In determining whether a product is a consumer product,
 doubtful cases shall be resolved in favor of coverage.  For a particular
 product received by a particular user, "normally used" refers to a
 typical or common use of that class of product, regardless of the status
 of the particular user or of the way in which the particular user
 actually uses, or expects or is expected to use, the product.  A product
 is a consumer product regardless of whether the product has substantial
 commercial, industrial or non-consumer uses, unless such uses represent
 the only significant mode of use of the product.
  "Installation Information" for a User Product means any methods,
 procedures, authorization keys, or other information required to install
 and execute modified versions of a covered work in that User Product from
 a modified version of its Corresponding Source.  The information must
 suffice to ensure that the continued functioning of the modified object
 code is in no case prevented or interfered with solely because
 modification has been made.
  If you convey an object code work under this section in, or with, or
 specifically for use in, a User Product, and the conveying occurs as
 part of a transaction in which the right of possession and use of the
 User Product is transferred to the recipient in perpetuity or for a
 fixed term (regardless of how the transaction is characterized), the
 Corresponding Source conveyed under this section must be accompanied
 by the Installation Information.  But this requirement does not apply
 if neither you nor any third party retains the ability to install
 modified object code on the User Product (for example, the work has
 been installed in ROM).
  The requirement to provide Installation Information does not include a
 requirement to continue to provide support service, warranty, or updates
 for a work that has been modified or installed by the recipient, or for
 the User Product in which it has been modified or installed.  Access to a
 network may be denied when the modification itself materially and
 adversely affects the operation of the network or violates the rules and
 protocols for communication across the network.
  Corresponding Source conveyed, and Installation Information provided,
 in accord with this section must be in a format that is publicly
 documented (and with an implementation available to the public in
 source code form), and must require no special password or key for
 unpacking, reading or copying.
  7. Additional Terms.
  "Additional permissions" are terms that supplement the terms of this
 License by making exceptions from one or more of its conditions.
 Additional permissions that are applicable to the entire Program shall
 be treated as though they were included in this License, to the extent
 that they are valid under applicable law.  If additional permissions
 apply only to part of the Program, that part may be used separately
 under those permissions, but the entire Program remains governed by
 this License without regard to the additional permissions.
  When you convey a copy of a covered work, you may at your option
 remove any additional permissions from that copy, or from any part of
 it.  (Additional permissions may be written to require their own
 removal in certain cases when you modify the work.)  You may place
 additional permissions on material, added by you to a covered work,
 for which you have or can give appropriate copyright permission.
  Notwithstanding any other provision of this License, for material you
 add to a covered work, you may (if authorized by the copyright holders of
 that material) supplement the terms of this License with terms:
    a) Disclaiming warranty or limiting liability differently from the
    terms of sections 15 and 16 of this License; or
    b) Requiring preservation of specified reasonable legal notices or
    author attributions in that material or in the Appropriate Legal
    Notices displayed by works containing it; or
    c) Prohibiting misrepresentation of the origin of that material, or
    requiring that modified versions of such material be marked in
    reasonable ways as different from the original version; or
    d) Limiting the use for publicity purposes of names of licensors or
    authors of the material; or
    e) Declining to grant rights under trademark law for use of some
    trade names, trademarks, or service marks; or
    f) Requiring indemnification of licensors and authors of that
    material by anyone who conveys the material (or modified versions of
    it) with contractual assumptions of liability to the recipient, for
    any liability that these contractual assumptions directly impose on
    those licensors and authors.
  All other non-permissive additional terms are considered "further
 restrictions" within the meaning of section 10.  If the Program as you
 received it, or any part of it, contains a notice stating that it is
 governed by this License along with a term that is a further
 restriction, you may remove that term.  If a license document contains
 a further restriction but permits relicensing or conveying under this
 License, you may add to a covered work material governed by the terms
 of that license document, provided that the further restriction does
 not survive such relicensing or conveying.
  If you add terms to a covered work in accord with this section, you
 must place, in the relevant source files, a statement of the
 additional terms that apply to those files, or a notice indicating
 where to find the applicable terms.
  Additional terms, permissive or non-permissive, may be stated in the
 form of a separately written license, or stated as exceptions;
 the above requirements apply either way.
  8. Termination.
  You may not propagate or modify a covered work except as expressly
 provided under this License.  Any attempt otherwise to propagate or
 modify it is void, and will automatically terminate your rights under
 this License (including any patent licenses granted under the third
 paragraph of section 11).
  However, if you cease all violation of this License, then your
 license from a particular copyright holder is reinstated (a)
 provisionally, unless and until the copyright holder explicitly and
 finally terminates your license, and (b) permanently, if the copyright
 holder fails to notify you of the violation by some reasonable means
 prior to 60 days after the cessation.
  Moreover, your license from a particular copyright holder is
 reinstated permanently if the copyright holder notifies you of the
 violation by some reasonable means, this is the first time you have
 received notice of violation of this License (for any work) from that
 copyright holder, and you cure the violation prior to 30 days after
 your receipt of the notice.
  Termination of your rights under this section does not terminate the
 licenses of parties who have received copies or rights from you under
 this License.  If your rights have been terminated and not permanently
 reinstated, you do not qualify to receive new licenses for the same
 material under section 10.
  9. Acceptance Not Required for Having Copies.
  You are not required to accept this License in order to receive or
 run a copy of the Program.  Ancillary propagation of a covered work
 occurring solely as a consequence of using peer-to-peer transmission
 to receive a copy likewise does not require acceptance.  However,
 nothing other than this License grants you permission to propagate or
 modify any covered work.  These actions infringe copyright if you do
 not accept this License.  Therefore, by modifying or propagating a
 covered work, you indicate your acceptance of this License to do so.
  10. Automatic Licensing of Downstream Recipients.
  Each time you convey a covered work, the recipient automatically
 receives a license from the original licensors, to run, modify and
 propagate that work, subject to this License.  You are not responsible
 for enforcing compliance by third parties with this License.
  An "entity transaction" is a transaction transferring control of an
 organization, or substantially all assets of one, or subdividing an
 organization, or merging organizations.  If propagation of a covered
 work results from an entity transaction, each party to that
 transaction who receives a copy of the work also receives whatever
 licenses to the work the party's predecessor in interest had or could
 give under the previous paragraph, plus a right to possession of the
 Corresponding Source of the work from the predecessor in interest, if
 the predecessor has it or can get it with reasonable efforts.
  You may not impose any further restrictions on the exercise of the
 rights granted or affirmed under this License.  For example, you may
 not impose a license fee, royalty, or other charge for exercise of
 rights granted under this License, and you may not initiate litigation
 (including a cross-claim or counterclaim in a lawsuit) alleging that
 any patent claim is infringed by making, using, selling, offering for
 sale, or importing the Program or any portion of it.
  11. Patents.
  A "contributor" is a copyright holder who authorizes use under this
 License of the Program or a work on which the Program is based.  The
 work thus licensed is called the contributor's "contributor version".
  A contributor's "essential patent claims" are all patent claims
 owned or controlled by the contributor, whether already acquired or
 hereafter acquired, that would be infringed by some manner, permitted
 by this License, of making, using, or selling its contributor version,
 but do not include claims that would be infringed only as a
 consequence of further modification of the contributor version.  For
 purposes of this definition, "control" includes the right to grant
 patent sublicenses in a manner consistent with the requirements of
 this License.
  Each contributor grants you a non-exclusive, worldwide, royalty-free
 patent license under the contributor's essential patent claims, to
 make, use, sell, offer for sale, import and otherwise run, modify and
 propagate the contents of its contributor version.
  In the following three paragraphs, a "patent license" is any express
 agreement or commitment, however denominated, not to enforce a patent
 (such as an express permission to practice a patent or covenant not to
 sue for patent infringement).  To "grant" such a patent license to a
 party means to make such an agreement or commitment not to enforce a
 patent against the party.
  If you convey a covered work, knowingly relying on a patent license,
 and the Corresponding Source of the work is not available for anyone
 to copy, free of charge and under the terms of this License, through a
 publicly available network server or other readily accessible means,
 then you must either (1) cause the Corresponding Source to be so
 available, or (2) arrange to deprive yourself of the benefit of the
 patent license for this particular work, or (3) arrange, in a manner
 consistent with the requirements of this License, to extend the patent
 license to downstream recipients.  "Knowingly relying" means you have
 actual knowledge that, but for the patent license, your conveying the
 covered work in a country, or your recipient's use of the covered work
 in a country, would infringe one or more identifiable patents in that
 country that you have reason to believe are valid.
  If, pursuant to or in connection with a single transaction or
 arrangement, you convey, or propagate by procuring conveyance of, a
 covered work, and grant a patent license to some of the parties
 receiving the covered work authorizing them to use, propagate, modify
 or convey a specific copy of the covered work, then the patent license
 you grant is automatically extended to all recipients of the covered
 work and works based on it.
  A patent license is "discriminatory" if it does not include within
 the scope of its coverage, prohibits the exercise of, or is
 conditioned on the non-exercise of one or more of the rights that are
 specifically granted under this License.  You may not convey a covered
 work if you are a party to an arrangement with a third party that is
 in the business of distributing software, under which you make payment
 to the third party based on the extent of your activity of conveying
 the work, and under which the third party grants, to any of the
 parties who would receive the covered work from you, a discriminatory
 patent license (a) in connection with copies of the covered work
 conveyed by you (or copies made from those copies), or (b) primarily
 for and in connection with specific products or compilations that
 contain the covered work, unless you entered into that arrangement,
 or that patent license was granted, prior to 28 March 2007.
  Nothing in this License shall be construed as excluding or limiting
 any implied license or other defenses to infringement that may
 otherwise be available to you under applicable patent law.
  12. No Surrender of Others' Freedom.
  If conditions are imposed on you (whether by court order, agreement or
 otherwise) that contradict the conditions of this License, they do not
 excuse you from the conditions of this License.  If you cannot convey a
 covered work so as to satisfy simultaneously your obligations under this
 License and any other pertinent obligations, then as a consequence you may
 not convey it at all.  For example, if you agree to terms that obligate you
 to collect a royalty for further conveying from those to whom you convey
 the Program, the only way you could satisfy both those terms and this
 License would be to refrain entirely from conveying the Program.
  13. Use with the GNU Affero General Public License.
  Notwithstanding any other provision of this License, you have
 permission to link or combine any covered work with a work licensed
 under version 3 of the GNU Affero General Public License into a single
 combined work, and to convey the resulting work.  The terms of this
 License will continue to apply to the part which is the covered work,
 but the special requirements of the GNU Affero General Public License,
 section 13, concerning interaction through a network will apply to the
 combination as such.
  14. Revised Versions of this License.
  The Free Software Foundation may publish revised and/or new versions of
 the GNU General Public License from time to time.  Such new versions will
 be similar in spirit to the present version, but may differ in detail to
 address new problems or concerns.
  Each version is given a distinguishing version number.  If the
 Program specifies that a certain numbered version of the GNU General
 Public License "or any later version" applies to it, you have the
 option of following the terms and conditions either of that numbered
 version or of any later version published by the Free Software
 Foundation.  If the Program does not specify a version number of the
 GNU General Public License, you may choose any version ever published
 by the Free Software Foundation.
  If the Program specifies that a proxy can decide which future
 versions of the GNU General Public License can be used, that proxy's
 public statement of acceptance of a version permanently authorizes you
 to choose that version for the Program.
  Later license versions may give you additional or different
 permissions.  However, no additional obligations are imposed on any
 author or copyright holder as a result of your choosing to follow a
 later version.
  15. Disclaimer of Warranty.
  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
 APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
 HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
 OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
 THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
 IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
 ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
  16. Limitation of Liability.
  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
 THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
 GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
 USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
 DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
 PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
 EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
 SUCH DAMAGES.
  17. Interpretation of Sections 15 and 16.
  If the disclaimer of warranty and limitation of liability provided
 above cannot be given local legal effect according to their terms,
 reviewing courts shall apply local law that most closely approximates
 an absolute waiver of all civil liability in connection with the
 Program, unless a warranty or assumption of liability accompanies a
 copy of the Program in return for a fee.
                     END OF TERMS AND CONDITIONS
            How to Apply These Terms to Your New Programs
  If you develop a new program, and you want it to be of the greatest
 possible use to the public, the best way to achieve this is to make it
 free software which everyone can redistribute and change under these terms.
  To do so, attach the following notices to the program.  It is safest
 to attach them to the start of each source file to most effectively
 state the exclusion of warranty; and each file should have at least
 the "copyright" line and a pointer to where the full notice is found.
    <one line to give the program's name and a brief idea of what it does.>
    Copyright (C) <year>  <name of author>
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.
 Also add information on how to contact you by electronic and paper mail.
  If the program does terminal interaction, make it output a short
 notice like this when it starts in an interactive mode:
    <program>  Copyright (C) <year>  <name of author>
    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
    This is free software, and you are welcome to redistribute it
    under certain conditions; type `show c' for details.
 The hypothetical commands `show w' and `show c' should show the appropriate
 parts of the General Public License.  Of course, your program's commands
 might be different; for a GUI interface, you would use an "about box".
  You should also get your employer (if you work as a programmer) or school,
 if any, to sign a "copyright disclaimer" for the program, if necessary.
 For more information on this, and how to apply and follow the GNU GPL, see
 <https://www.gnu.org/licenses/>.
  The GNU General Public License does not permit incorporating your program
 into proprietary programs.  If your program is a subroutine library, you
 may consider it more useful to permit linking proprietary applications with
 the library.  If this is what you want to do, use the GNU Lesser General
 Public License instead of this License.  But first, please read
 <https://www.gnu.org/licenses/why-not-lgpl.html>.
@@ -63,8 +63,13 @@ them at that cost.
 ```
 Then right-click a panel or the desktop, Add Widgets, and search for
-"Insta360". Pass `--restart` when reinstalling over a running copy, since
+"Insta360".
-Plasma otherwise keeps the old one loaded.
+
 **Reinstalling needs `--restart`.** Plasma loads an applet's QML once and keeps
 it. Pulling new code and restarting the desktop is not enough on its own,
 because the installed copy is only replaced by `install.sh`. After updating
 this repo, run `./plasmoid/install.sh --restart`, or new behaviour will appear
 to be missing while the old code carries on running.
 The joystick is a velocity control: how far you push sets how fast the camera
 moves, and it stops when you let go. Degrees per step, step interval, deadzone
@@ -165,6 +170,8 @@ case where the gimbal is parked facing down.
 lua tests/test_obs_linkctl.lua          # pure helpers: quoting, parsing, commands
 lua tests/test_obs_lifecycle.lua        # the OBS script against a mock OBS API
 node tests/test_joystick_logic.js       # widget command building, parsing, key vectors
 tests/test_resolver.sh                  # binary resolution, run in a real shell
 python3 tests/lint_qml.py               # QML scope errors, with KDE types resolved
 python3 tests/test_gamepad.py           # gamepad event decoding and deadzone maths
 tests/test_gamepad_loop.sh              # the gamepad read loop, fed through a FIFO
 bin/linkctl-macro --print tracking on   # show the command without running it
@@ -178,6 +185,20 @@ The lifecycle suite drives the script the way OBS does, so it catches broken
 wiring (hotkeys not firing, scene actions not matching, the preset name being
 captured too early) without needing OBS or a camera.
 `tests/lint_qml.py` is worth understanding before trusting a clean QML run.
 Plain `qmllint` cannot resolve the KDE QML modules, so it reports every
 identifier inside `PlasmoidItem` as "Unqualified access" and buries real
 findings in roughly ninety lines of noise. `tests/qmlstubs/` holds minimal
 stand-ins for those modules so the types resolve and the scope analysis means
 something; with them in place the only legitimate unqualified accesses are a
 short allowlist, so anything else is a real finding. This exists because
 filtering that noise wholesale once hid a `ReferenceError: stick is not
 defined` that disabled all camera movement.
 If you add a configuration key to `contents/config/main.xml`, add it to
 `tests/qmlstubs/org/kde/plasma/plasmoid/Configuration.qml` too, or the linter
 will not catch a typo in the key name.
 `test_gamepad_loop.sh` substitutes a FIFO for `/dev/input/js*` and plays
 scripted events through it, so the select/read/decode/tick path is covered
 without a controller attached. It is also the test that pins down the
@@ -198,6 +219,27 @@ Versions of this repo before that fix wrote the Plasma 5 form.
 that works but the key does not, check for a conflict in System Settings, and
 confirm `--list` shows the entry as `present`.
 **The widget cannot control the camera, but `linkctl` works in a terminal.**
 Almost always `PATH`. Plasma runs applet commands through
 `KProcess::setShellCommand`, which is `/bin/sh -c` inheriting plasmashell's
 environment, and that environment never sources `~/.bashrc` or a login
 profile. An install that puts `linkctl` on `PATH` from a shell rc file, which
 includes `mise` and `asdf` shims and `~/.local/bin` on some distributions, is
 therefore invisible to the widget. The widget now searches those locations
 itself at startup and says so in its status line if it finds nothing; the
 settings page accepts a full path to override it. Compare what the session
 sees with what your shell sees:
 ```sh
 systemctl --user show-environment | grep '^PATH'
 command -v linkctl
 ```
 **The widget worked, then stopped after a restart or a replug.** The Link's
 `/dev/videoN` number is not stable. If the Video device field in the widget's
 settings is set, clear it and let auto-detection run: a pinned node that has
 since moved makes every command fail.
 **Gamepad does nothing.** Check `bin/linkctl-gamepad --list` sees it. If the
 device is listed but nothing moves, run `--monitor` and push the stick: no
 events means a permissions or driver problem, events with unexpected axis
@@ -221,6 +263,29 @@ needs both axes set in one `VIDIOC_S_EXT_CTRLS` call. `linkctl` does this
 correctly; raw `v4l2-ctl` needs `--set-ctrl pan_absolute=0,tilt_absolute=0`
 as one argument.
 ## Credits
 This is glue around other people's reverse engineering, and none of it would
 exist without them:
 - [`illegalstudio/linkctl`](https://github.com/illegalstudio/linkctl) (MIT)
  does the actual camera control. Everything here shells out to it.
 - [`schlarpc/insta360-link-firmware-re`](https://github.com/schlarpc/insta360-link-firmware-re)
  documents the camera's UVC extension-unit protocol and internal parameter
  space from a firmware teardown. It is the reference for anything not already
  exposed by `linkctl`.
 - [`vrwallace/Insta360-Link-1-and-2-Controller-for-Linux`](https://github.com/vrwallace/Insta360-Link-1-and-2-Controller-for-Linux)
  established that the Link 2 rejects single-axis pan/tilt writes and needs
  both axes in one `VIDIOC_S_EXT_CTRLS` call, which is the detail that makes
  gimbal control work at all.
 ## License
 GPL-3.0-or-later. See [LICENSE](LICENSE).
 `linkctl` itself is MIT and separately licensed; this project invokes it as a
 subprocess and does not include or link against it.
 ## Status
 The helpers, the shell scripts and the gamepad read loop are tested offline,
@@ -1,4 +1,7 @@
 #!/usr/bin/env python3
 # SPDX-FileCopyrightText: 2026 branderson
 # SPDX-License-Identifier: GPL-3.0-or-later
 """Drive an Insta360 Link gimbal from a game controller.
 Reads the kernel joystick device directly (``/dev/input/js*``) and issues
@@ -1,4 +1,7 @@
 #!/usr/bin/env bash
 # SPDX-FileCopyrightText: 2026 branderson
 # SPDX-License-Identifier: GPL-3.0-or-later
 #
 # linkctl-macro - run a linkctl command as a desktop macro.
 #
@@ -1,3 +1,6 @@
 # SPDX-FileCopyrightText: 2026 branderson
 # SPDX-License-Identifier: GPL-3.0-or-later
 #  Run the gamepad bridge as a user service.
 #
 #  Install:
@@ -15,14 +18,14 @@
 [Unit]
 Description=Insta360 Link gamepad control
 Documentation=https://gitbox.example.com/insta360-link-tools
 After=graphical-session.target
 PartOf=graphical-session.target
 [Service]
 Type=simple
-# Absolute path required: systemd does not search PATH for ExecStart.
+# EDIT THIS. systemd does not search PATH for ExecStart, so it needs the
-ExecStart=%h/workspace/insta360-link-tools/bin/linkctl-gamepad --wait
+# absolute path to your checkout. %h expands to your home directory.
 ExecStart=%h/PATH/TO/CHECKOUT/bin/linkctl-gamepad --wait
 Restart=on-failure
 RestartSec=5
 # The joystick device and the camera are the only things it touches.
@@ -1,4 +1,7 @@
 #!/usr/bin/env bash
 # SPDX-FileCopyrightText: 2026 branderson
 # SPDX-License-Identifier: GPL-3.0-or-later
 #
 # install-shortcuts.sh - register global hotkeys for the Insta360 Link under
 # KDE Plasma.
@@ -1,3 +1,6 @@
 # SPDX-FileCopyrightText: 2026 branderson
 # SPDX-License-Identifier: GPL-3.0-or-later
 # Example configuration for bin/linkctl-macro.
 # Copy to ~/.config/linkctl-macro.conf and uncomment what you need.
 # This file is sourced by bash, so it is shell syntax.
@@ -1,3 +1,6 @@
 -- SPDX-FileCopyrightText: 2026 branderson
 -- SPDX-License-Identifier: GPL-3.0-or-later
 --[[
 obs-linkctl.lua - Insta360 Link control inside OBS.
@@ -1,4 +1,7 @@
 #!/usr/bin/env bash
 # SPDX-FileCopyrightText: 2026 branderson
 # SPDX-License-Identifier: GPL-3.0-or-later
 #
 # install.sh - install the Insta360 Link Joystick applet into Plasma.
 #
@@ -43,6 +46,22 @@ else
    die "neither kpackagetool6 nor kpackagetool5 found; is this a KDE Plasma session?"
 fi
 # Qt caches compiled QML and JS on disk. Replacing the applet's files does not
 # invalidate that cache reliably, and a stale compiled logic.js missing a
 # newer helper function is enough to break bindings that reference it. Clearing
 # it costs only a slower first load.
 clear_qml_cache() {
    local cleared=0 d
    for d in "${XDG_CACHE_HOME:-$HOME/.cache}"/plasmashell/qmlcache \
             "${XDG_CACHE_HOME:-$HOME/.cache}"/org.kde.plasmashell/qmlcache \
             "${XDG_CACHE_HOME:-$HOME/.cache}"/qmlcache; do
        if [[ -d $d ]]; then
            rm -rf -- "$d" && echo "  cleared $d" && cleared=1
        fi
    done
    (( cleared )) || echo "  no QML cache to clear"
 }
 restart_shell() {
    (( RESTART )) || return 0
    echo "Restarting plasmashell:"
@@ -73,6 +92,8 @@ install)
        echo "Installing:"
        "$KPT" --type Plasma/Applet --install "$PKG"
    fi
    echo "Clearing the compiled QML cache:"
    clear_qml_cache
    restart_shell
    echo
    echo "Done. Right-click a panel or the desktop, Add Widgets, search 'Insta360'."
@@ -1,3 +1,6 @@
 // SPDX-FileCopyrightText: 2026 branderson
 // SPDX-License-Identifier: GPL-3.0-or-later
 import QtQuick
 import org.kde.plasma.configuration
@@ -1,4 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!-- SPDX-FileCopyrightText: 2026 branderson
     SPDX-License-Identifier: GPL-3.0-or-later -->
 <kcfg xmlns="http://www.kde.org/standards/kcfg/1.0"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://www.kde.org/standards/kcfg/1.0
@@ -1,3 +1,6 @@
 // SPDX-FileCopyrightText: 2026 branderson
 // SPDX-License-Identifier: GPL-3.0-or-later
 /*
 * A circular virtual joystick.
 *
@@ -1,3 +1,6 @@
 // SPDX-FileCopyrightText: 2026 branderson
 // SPDX-License-Identifier: GPL-3.0-or-later
 import QtQuick
 import QtQuick.Controls as QQC2
 import org.kde.kirigami as Kirigami
@@ -16,6 +19,20 @@ Kirigami.FormLayout {
    property alias cfg_invertPan: invertPan.checked
    property alias cfg_invertTilt: invertTilt.checked
    // Plasma also assigns a cfg_<name>Default for every key, plus a title,
    // when it instantiates a config page. Without these declared it logs
    // "does not have a property called cfg_<name>Default" for each one and
    // the Defaults button has nothing to compare against.
    property string cfg_linkctlPathDefault: "linkctl"
    property string cfg_deviceDefault: ""
    property string cfg_homePresetDefault: "home"
    property int cfg_maxStepDefault: 6
    property int cfg_tickIntervalDefault: 160
    property int cfg_deadzoneDefault: 15
    property bool cfg_invertPanDefault: false
    property bool cfg_invertTiltDefault: false
    property string title: ""
    QQC2.TextField {
        id: linkctlPath
        Kirigami.FormData.label: "linkctl binary:"
@@ -1,3 +1,6 @@
 // SPDX-FileCopyrightText: 2026 branderson
 // SPDX-License-Identifier: GPL-3.0-or-later
 /*
 * Pure helpers for the joystick applet.
 *
@@ -23,6 +26,53 @@ function baseCmd(linkctl, device) {
    return c;
 }
 /*
 * Make a command string unique by appending a shell comment.
 *
 * Plasma's executable data engine keys its containers by the command string.
 * DataEngine::connectSource hands back a pre-existing container and delivers
 * its *cached* data rather than running the command again; the process only
 * starts when the container is first created. So re-issuing an identical
 * command can report success without the camera moving at all, which is
 * exactly what a stick held at full deflection produces every tick.
 *
 * `#` starts a comment in sh, so the trailing counter changes the key the
 * engine sees without changing what runs.
 */
 function uniqueify(cmd, seq) {
    return cmd + " # " + seq;
 }
 // Directories searched for the binary, in order. Mirrors the resolver in
 // bin/linkctl-macro. $HOME is left for the shell to expand.
 var SEARCH_DIRS = [
    "/usr/local/bin",
    "/usr/bin",
    "\"$HOME/.local/bin\"",
    "\"$HOME/.cargo/bin\"",
    "\"$HOME/.local/share/mise/shims\"",
    "\"$HOME/.asdf/shims\"",
    "/var/lib/flatpak/exports/bin"
 ];
 /*
 * Build a shell command that prints the absolute path of the binary.
 *
 * Plasma runs applet commands through KProcess::setShellCommand, which is
 * `/bin/sh -c` inheriting plasmashell's environment. That environment never
 * sources a login profile, so anything that puts linkctl on PATH from
 * ~/.bashrc or similar (mise and asdf shims, ~/.local/bin on some distros) is
 * invisible to the applet even though it works in a terminal. Searching
 * explicitly is the only reliable way to find it.
 */
 function resolveCommand(name) {
    return "n=" + shq(name || "linkctl") + "; "
        + "command -v \"$n\" 2>/dev/null || "
        + "{ for d in " + SEARCH_DIRS.join(" ") + "; do "
        + "[ -x \"$d/$n\" ] && printf '%s\\n' \"$d/$n\" && break; "
        + "done; }";
 }
 /*
 * Build the shell command for one joystick tick.
 *
@@ -137,8 +187,25 @@ function errorMessage(stdout, stderr, exitCode) {
    } catch (e) {
        // not JSON, fall through to stderr
    }
    // 127 is the shell's "command not found", which here means the resolved
    // path has stopped being valid rather than anything about the camera.
    if (exitCode === 127) {
        return "linkctl could not be run. Set its full path in settings.";
    }
    if (err !== "") {
        return err;
    }
    // Exit codes that usually mean a pinned device node is stale. The Link's
    // /dev/videoN numbering moves between boots and replugs.
    if (exitCode === 3) {
        return "Camera not found. If a device is set in settings, clear it: "
            + "the node number changes between boots.";
    }
    if (exitCode === 4) {
        return "Several cameras found. Set the device in settings.";
    }
    if (exitCode === 6) {
        return "Permission denied. Add yourself to the 'video' group.";
    }
    return "linkctl exited " + exitCode;
 }
@@ -1,3 +1,6 @@
 // SPDX-FileCopyrightText: 2026 branderson
 // SPDX-License-Identifier: GPL-3.0-or-later
 /*
 * Insta360 Link Joystick - a Plasma 6 applet.
 *
@@ -22,8 +25,24 @@ import "logic.js" as Logic
 PlasmoidItem {
    id: root
-    readonly property string linkctl: Plasmoid.configuration.linkctlPath || "linkctl"
+    readonly property string configuredBin: Plasmoid.configuration.linkctlPath || "linkctl"
    readonly property string device: Plasmoid.configuration.device
    // The binary's absolute path, found at startup. Empty until resolved, and
    // commands are held back until then: Plasma runs these through a plain
    // `sh -c` with plasmashell's environment, which does not include whatever
    // a login shell adds to PATH, so a bare name often cannot be run here
    // even when it works in a terminal.
    // Starts as the configured name so commands always have something to
    // run. The probe only upgrades this to an absolute path; it can never
    // leave the widget unable to act.
    property string resolvedBin: Plasmoid.configuration.linkctlPath || "linkctl"
    property bool resolving: false
    // Incremented per command so no two command strings are ever identical.
    property int seq: 0
    readonly property bool ready: root.resolvedBin !== ""
    property string lastCmd: ""
    property int lastExit: -1
    readonly property int stepMax: Plasmoid.configuration.maxStep
    readonly property int tickMs: Plasmoid.configuration.tickInterval
    readonly property bool invertPan: Plasmoid.configuration.invertPan
@@ -43,17 +62,24 @@ PlasmoidItem {
    property bool keyUp: false
    property bool keyDown: false
-    readonly property var keyVec: Logic.vectorFromKeys({
+    // Keyboard vector. Computed defensively on purpose: the pointer path
-        left: root.keyLeft, right: root.keyRight,
+    // reads inNx/inEngaged too, so anything that throws in here would
-        up: root.keyUp, down: root.keyDown
+    // disable dragging as well. Qt caches compiled QML and JS on disk, and a
-    })
+    // stale cached logic.js lacking a newer helper is enough to do it.
-    readonly property bool keyEngaged: root.keyVec.nx !== 0 || root.keyVec.ny !== 0
+    readonly property bool keyboardAvailable: typeof Logic !== "undefined"
        && typeof Logic.vectorFromKeys === "function"
    readonly property var keyVec: root.keyboardAvailable
        ? Logic.vectorFromKeys({
              left: root.keyLeft, right: root.keyRight,
              up: root.keyUp, down: root.keyDown
          })
        : { nx: 0, ny: 0 }
    readonly property real keyNx: (root.keyVec && typeof root.keyVec.nx === "number")
        ? root.keyVec.nx : 0
    readonly property real keyNy: (root.keyVec && typeof root.keyVec.ny === "number")
        ? root.keyVec.ny : 0
    readonly property bool keyEngaged: root.keyNx !== 0 || root.keyNy !== 0
    // The pointer wins while it is down, so a drag is never fought over by a
    // key left held down underneath it.
    readonly property real inNx: stick.held ? stick.nx : root.keyVec.nx
    readonly property real inNy: stick.held ? stick.ny : root.keyVec.ny
    readonly property bool inEngaged: stick.engaged || root.keyEngaged
    // WASD and the arrow keys. Returns "" for anything that is not a
    // movement key, so the handler can leave it unaccepted.
@@ -92,7 +118,25 @@ PlasmoidItem {
    }
    function baseCmd() {
-        return Logic.baseCmd(root.linkctl, root.device);
+        return Logic.baseCmd(root.resolvedBin, root.device);
    }
    // An absolute path is taken as given; anything else is searched for.
    function resolveBinary() {
        if (root.configuredBin.charAt(0) === "/") {
            root.resolvedBin = root.configuredBin;
            root.refresh();
            root.refreshTracking();
            return;
        }
        if (typeof Logic.resolveCommand !== "function") {
            // Stale cached logic.js: keep the configured name and carry on.
            root.refresh();
            return;
        }
        root.statusText = "Looking for linkctl...";
        root.resolving = true;
        sh.exec(Logic.resolveCommand(root.configuredBin));
    }
    function absorb(stdout) {
@@ -125,6 +169,27 @@ PlasmoidItem {
            const err = (data.stderr || "").trim();
            disconnectSource(source);
            root.busy = false;
            root.lastExit = code;
            console.log("[insta360] exit", code, "out:", String(out).trim(),
                        "err:", err);
            if (root.resolving) {
                root.resolving = false;
                const found = String(out).trim().split("\n")[0].trim();
                if (found !== "") {
                    root.resolvedBin = found;
                    root.refresh();
                    root.refreshTracking();
                } else {
                    // Keep the configured name as the fallback rather than
                    // blocking: on a packaged install it is on PATH anyway.
                    root.statusText = "Could not locate linkctl; using '"
                        + root.configuredBin + "'.";
                    root.refresh();
                }
                return;
            }
            if (code === 0) {
                root.absorb(out);
            } else {
@@ -134,7 +199,28 @@ PlasmoidItem {
        function exec(cmd) {
            root.busy = true;
-            connectSource(cmd);
+            root.seq += 1;
            // Never reuse a command string: the engine would serve the
            // previous run's cached output and not run anything.
            const unique = (typeof Logic.uniqueify === "function")
                ? Logic.uniqueify(cmd, root.seq)
                : cmd + " # " + root.seq;
            root.lastCmd = unique;
            console.log("[insta360] run:", unique);
            connectSource(unique);
        }
    }
    Timer {
        // Plasma's executable engine silently drops a request when an
        // identical command is still running, so `busy` would otherwise be
        // able to stick on and freeze every later step.
        id: busyWatchdog
        interval: 4000
        running: root.busy
        onTriggered: {
            root.busy = false;
            root.statusText = "linkctl did not respond in time.";
        }
    }
@@ -150,10 +236,37 @@ PlasmoidItem {
        sh.exec(root.baseCmd() + " " + args);
    }
-    Component.onCompleted: refresh()
+    property bool started: false
    Component.onCompleted: {
        root.started = true;
        root.resolveBinary();
    }
    // Re-resolve if the configured path is edited. Guarded because this also
    // fires while the component is still being set up, which would otherwise
    // probe twice and duplicate every follow-up query.
    onConfiguredBinChanged: {
        if (!root.started) {
            return;
        }
        root.resolvedBin = root.configuredBin;
        root.resolveBinary();
    }
    fullRepresentation: ColumnLayout {
        id: panel
        // The combined pointer and keyboard vector. These live here, not on
        // root, because `stick` is an id declared inside this Component and
        // ids are not visible from the enclosing scope. Binding to it from
        // root raised "ReferenceError: stick is not defined" and silently
        // disabled every form of movement.
        //
        // The pointer wins while it is down, so a drag is never fought over
        // by a key left held down underneath it.
        readonly property real inNx: stick.held ? stick.nx : root.keyNx
        readonly property real inNy: stick.held ? stick.ny : root.keyNy
        readonly property bool inEngaged: stick.engaged || root.keyEngaged
        Layout.minimumWidth: Kirigami.Units.gridUnit * 14
        Layout.minimumHeight: Kirigami.Units.gridUnit * 22
        spacing: Kirigami.Units.smallSpacing
@@ -200,9 +313,6 @@ PlasmoidItem {
            Layout.fillWidth: true
            horizontalAlignment: Text.AlignHCenter
            text: {
                if (isNaN(root.panDeg) && isNaN(root.tiltDeg)) {
                    return root.statusText;
                }
                const p = isNaN(root.panDeg) ? "?" : root.panDeg.toFixed(1);
                const t = isNaN(root.tiltDeg) ? "?" : root.tiltDeg.toFixed(1);
                return "Pan " + p + "°   Tilt " + t + "°";
@@ -210,6 +320,18 @@ PlasmoidItem {
            elide: Text.ElideRight
        }
        // Always visible, so a failure part way through a session is not
        // hidden behind a stale position readout.
        PlasmaComponents.Label {
            Layout.fillWidth: true
            horizontalAlignment: Text.AlignHCenter
            text: root.statusText
            opacity: 0.7
            font: Kirigami.Theme.smallFont
            wrapMode: Text.WordWrap
            maximumLineCount: 3
        }
        Joystick {
            id: stick
            Layout.alignment: Qt.AlignHCenter
@@ -231,17 +353,19 @@ PlasmoidItem {
        }
        Timer {
            id: moveTimer
            // Drives both input methods. Only runs while something is asking
            // for movement, so an idle popup costs nothing.
            interval: root.tickMs
            repeat: true
-            running: root.inEngaged
+            running: panel.inEngaged
            triggeredOnStart: true
            onTriggered: {
                if (root.busy) {
                    return;     // let the previous step finish, skip this one
                }
-                const cmd = Logic.tickCommand(root.baseCmd(), root.inNx, root.inNy,
+                const cmd = Logic.tickCommand(root.baseCmd(),
                                              panel.inNx, panel.inNy,
                                              root.stepMax, root.invertPan,
                                              root.invertTilt);
                if (cmd !== "") {
@@ -259,6 +383,16 @@ PlasmoidItem {
                    root.refresh();
                }
            }
            // Component.onCompleted can run before the popup is on screen, so
            // the focus grab there does not always stick. Claim it again each
            // time the popup opens, which is when the keys need to work.
            function onExpandedChanged() {
                if (root.expanded) {
                    panel.forceActiveFocus();
                } else {
                    root.clearKeys();
                }
            }
        }
        RowLayout {
@@ -326,8 +460,79 @@ PlasmoidItem {
            icon.name: "view-refresh"
            text: "Refresh"
            onClicked: {
-                root.refresh();
+                if (!root.ready) {
-                root.refreshTracking();
+                    root.resolveBinary();
                } else {
                    root.refresh();
                    root.refreshTracking();
                }
            }
        }
        PlasmaComponents.Button {
            id: diagToggle
            Layout.fillWidth: true
            focusPolicy: Qt.NoFocus
            checkable: true
            icon.name: "help-about"
            text: "Diagnostics"
        }
        // Live internal state. Exists because every failure so far has
        // presented as "nothing happens", which is the one symptom that
        // carries no information.
        //
        // Deliberately one label built by one guarded function rather than a
        // Repeater over an array of expressions: in that shape a single
        // throwing sub-expression discards the whole model and the panel
        // renders empty, which is the failure mode it is meant to diagnose.
        PlasmaComponents.Label {
            Layout.fillWidth: true
            visible: diagToggle.checked
            font: Kirigami.Theme.smallFont
            opacity: 0.85
            wrapMode: Text.WrapAnywhere
            textFormat: Text.PlainText
            function line(label, value) {
                try {
                    return label + ": " + value + "\n";
                } catch (e) {
                    return label + ": <error: " + e + ">\n";
                }
            }
            text: {
                let out = "";
                try {
                    out += line("binary", root.resolvedBin);
                    out += line("configured", root.configuredBin);
                    out += line("device",
                                root.device === "" ? "(auto)" : root.device);
                    out += line("helpers",
                                "vectorFromKeys=" + root.keyboardAvailable
                                + " uniqueify="
                                + (typeof Logic !== "undefined"
                                   && typeof Logic.uniqueify === "function")
                                + " resolveCommand="
                                + (typeof Logic !== "undefined"
                                   && typeof Logic.resolveCommand === "function"));
                    out += line("stick", "held=" + stick.held
                                + " nx=" + stick.nx.toFixed(2)
                                + " ny=" + stick.ny.toFixed(2)
                                + " engaged=" + stick.engaged);
                    out += line("keys", "nx=" + root.keyNx.toFixed(2)
                                + " ny=" + root.keyNy.toFixed(2)
                                + " focus=" + panel.activeFocus);
                    out += line("input", "engaged=" + panel.inEngaged
                                + " timer=" + moveTimer.running);
                    out += line("busy", root.busy + " seq=" + root.seq
                                + " lastExit=" + root.lastExit);
                    out += line("lastCmd", root.lastCmd);
                } catch (e) {
                    out += "diagnostics failed: " + e;
                }
                return out;
            }
        }
@@ -10,7 +10,7 @@
        "Description": "Virtual joystick and quick controls for an Insta360 Link webcam",
        "Icon": "camera-web",
        "Id": "com.github.insta360linktools.joystick",
-        "License": "MIT",
+        "License": "GPL-3.0-or-later",
        "Name": "Insta360 Link Joystick",
        "Version": "1.0"
    },
@@ -0,0 +1,161 @@
 #!/usr/bin/env python3
 # SPDX-FileCopyrightText: 2026 branderson
 # SPDX-License-Identifier: GPL-3.0-or-later
 """Lint the applet's QML with the KDE types resolved.
 Why this exists
 ---------------
 Running qmllint on the applet without the KDE QML modules present reports
 every single identifier inside `PlasmoidItem` as "Unqualified access",
 because the type cannot be resolved and so nothing inside it has a known
 scope. That is 87 warnings of pure noise on a clean file, which is why they
 were previously filtered out wholesale, and that filter hid a real one:
    ReferenceError: stick is not defined
 `stick` is an id declared inside the `fullRepresentation` Component, and a
 property on the root object cannot see into that scope. The binding threw at
 runtime, so the movement timer never ran and every form of input silently
 stopped working. qmllint had flagged it; the filter discarded it.
 tests/qmlstubs holds minimal stand-ins for the KDE modules so qmllint can
 resolve the types and reason about scope properly. With those in place the
 only remaining unqualified accesses are the handful listed in ALLOWED below,
 so anything new is a genuine finding rather than noise.
 Run: python3 tests/lint_qml.py
 """
 from __future__ import annotations
 import os
 import re
 import shutil
 import subprocess
 import sys
 HERE = os.path.dirname(os.path.abspath(__file__))
 ROOT = os.path.normpath(os.path.join(HERE, ".."))
 STUBS = os.path.join(HERE, "qmlstubs")
 TARGETS = [
    "plasmoid/package/contents/ui/main.qml",
    "plasmoid/package/contents/ui/Joystick.qml",
 ]
 # Identifiers that are legitimately unqualified, with the reason. Keep this
 # list short and specific: a broad rule here is what let the scope bug
 # through last time.
 ALLOWED = {
    # Ids declared on the outer component and used inside the nested
    # fullRepresentation. QML resolves these at runtime under the default
    # component behaviour; qmllint asks for "pragma ComponentBehavior: Bound"
    # to make it explicit, which would change runtime semantics and is left
    # as a separate decision.
    "root",
    "sh",
    # Implicit property supplied by Repeater to its delegate.
    "modelData",
 }
 def find_qmllint() -> str | None:
    """Locate qmllint.
    Set QMLLINT to point at a specific binary; otherwise the Qt and PySide6
    names are tried on PATH. Qt ships it as qmllint (sometimes suffixed with
    the Qt version), and PySide6-Essentials installs pyside6-qmllint.
    """
    override = os.environ.get("QMLLINT")
    if override:
        return override if os.path.exists(override) else None
    for name in ("qmllint", "qmllint6", "qmllint-qt6", "pyside6-qmllint"):
        found = shutil.which(name)
        if found:
            return found
    return None
 def parse(output: str) -> tuple[list[tuple[str, str, str]], list[str]]:
    """Return (unqualified findings, hard errors).
    A finding is (file, line, symbol). The symbol is recovered from the caret
    line qmllint prints beneath the offending source.
    """
    findings: list[tuple[str, str, str]] = []
    errors: list[str] = []
    lines = output.split("\n")
    for i, line in enumerate(lines):
        if line.startswith("Error:"):
            errors.append(line)
            continue
        m = re.match(r"Warning: (.+?):(\d+):(\d+): Unqualified access", line)
        if not m or i + 2 >= len(lines):
            continue
        src, caret = lines[i + 1], lines[i + 2]
        col = caret.find("^")
        if col < 0:
            continue
        end = col
        while end < len(caret) and caret[end] == "^":
            end += 1
        findings.append((m.group(1), m.group(2), src[col:end]))
    return findings, errors
 def main() -> int:
    qmllint = find_qmllint()
    if not qmllint:
        print("SKIP: qmllint not found on PATH. Install Qt's qmllint, or "
              "`pip install PySide6-Essentials` for pyside6-qmllint, or set "
              "QMLLINT=/path/to/qmllint.")
        return 0
    env = dict(os.environ, LC_ALL="C.UTF-8")
    failures = 0
    checked = 0
    for target in TARGETS:
        path = os.path.join(ROOT, target)
        if not os.path.exists(path):
            print(f"FAIL {target}: missing")
            failures += 1
            continue
        proc = subprocess.run(
            [qmllint, "-I", STUBS, path],
            capture_output=True, text=True, env=env, cwd=ROOT,
        )
        output = proc.stdout + proc.stderr
        findings, errors = parse(output)
        checked += 1
        for err in errors:
            print(f"FAIL {err}")
            failures += 1
        unexpected = [f for f in findings if f[2] not in ALLOWED]
        if unexpected:
            for _, line, sym in unexpected:
                print(f"FAIL {target}:{line}: unqualified access to "
                      f"'{sym}'. If this is an id from another component, "
                      f"QML cannot resolve it from here.")
                failures += 1
        else:
            allowed_count = len(findings)
            print(f"ok   {target} "
                  f"({allowed_count} allowed unqualified, 0 unexpected)")
        # An unresolved import means the stubs have drifted and the scope
        # analysis below it is worthless, so treat it as a failure.
        if "was not found" in output:
            for line in output.split("\n"):
                if "was not found" in line:
                    print(f"FAIL unresolved type in {target}: {line.strip()}")
                    failures += 1
    print(f"\n{checked} files linted, {failures} failures")
    return 0 if failures == 0 else 1
 if __name__ == "__main__":
    sys.exit(main())
@@ -0,0 +1,15 @@
 // SPDX-FileCopyrightText: 2026 branderson
 // SPDX-License-Identifier: GPL-3.0-or-later
 pragma Singleton
 import QtQuick
 QtObject {
    readonly property color textColor: "black"
    readonly property color backgroundColor: "white"
    readonly property color alternateBackgroundColor: "#eee"
    readonly property color highlightColor: "blue"
    readonly property color separatorColor: "#ccc"
    readonly property font smallFont: Qt.font({ pointSize: 8 })
    readonly property font defaultFont: Qt.font({ pointSize: 10 })
 }
@@ -0,0 +1,11 @@
 // SPDX-FileCopyrightText: 2026 branderson
 // SPDX-License-Identifier: GPL-3.0-or-later
 pragma Singleton
 import QtQuick
 QtObject {
    readonly property int gridUnit: 18
    readonly property int smallSpacing: 4
    readonly property int largeSpacing: 8
 }
@@ -0,0 +1,6 @@
 # SPDX-FileCopyrightText: 2026 branderson
 # SPDX-License-Identifier: GPL-3.0-or-later
 module org.kde.kirigami
 singleton Units 1.0 Units.qml
 singleton Theme 1.0 Theme.qml
@@ -0,0 +1,6 @@
 // SPDX-FileCopyrightText: 2026 branderson
 // SPDX-License-Identifier: GPL-3.0-or-later
 import QtQuick.Controls as QQC
 QQC.Button {}
@@ -0,0 +1,6 @@
 // SPDX-FileCopyrightText: 2026 branderson
 // SPDX-License-Identifier: GPL-3.0-or-later
 import QtQuick.Controls as QQC
 QQC.Label {}
@@ -0,0 +1,6 @@
 // SPDX-FileCopyrightText: 2026 branderson
 // SPDX-License-Identifier: GPL-3.0-or-later
 import QtQuick.Controls as QQC
 QQC.Slider {}
@@ -0,0 +1,7 @@
 # SPDX-FileCopyrightText: 2026 branderson
 # SPDX-License-Identifier: GPL-3.0-or-later
 module org.kde.plasma.components
 Label 1.0 Label.qml
 Button 1.0 Button.qml
 Slider 1.0 Slider.qml
@@ -0,0 +1,13 @@
 // SPDX-FileCopyrightText: 2026 branderson
 // SPDX-License-Identifier: GPL-3.0-or-later
 import QtQuick
 QtObject {
    property string engine: ""
    property var connectedSources: []
    signal newData(string sourceName, var data)
    function connectSource(source) {}
    function disconnectSource(source) {}
    function serviceForSource(source) { return null; }
 }
@@ -0,0 +1,5 @@
 # SPDX-FileCopyrightText: 2026 branderson
 # SPDX-License-Identifier: GPL-3.0-or-later
 module org.kde.plasma.plasma5support
 DataSource 1.0 DataSource.qml
@@ -0,0 +1,17 @@
 // SPDX-FileCopyrightText: 2026 branderson
 // SPDX-License-Identifier: GPL-3.0-or-later
 // The applet's configuration keys. Mirrors contents/config/main.xml; keep the
 // two in step, or the linter will not catch a typo in a key name.
 import QtQuick
 QtObject {
    property string linkctlPath: "linkctl"
    property string device: ""
    property string homePreset: "home"
    property int maxStep: 6
    property int tickInterval: 160
    property int deadzone: 15
    property bool invertPan: false
    property bool invertTilt: false
 }
@@ -0,0 +1,9 @@
 // SPDX-FileCopyrightText: 2026 branderson
 // SPDX-License-Identifier: GPL-3.0-or-later
 pragma Singleton
 import QtQuick
 QtObject {
    readonly property Configuration configuration: Configuration {}
 }
@@ -0,0 +1,19 @@
 // SPDX-FileCopyrightText: 2026 branderson
 // SPDX-License-Identifier: GPL-3.0-or-later
 // Stub of PlasmoidItem, only as complete as the applet needs. Exists so
 // qmllint can resolve the type and therefore reason about scope; without it
 // every identifier inside the applet is reported as unqualified and the
 // genuine scope errors are indistinguishable from import noise.
 import QtQuick
 Item {
    property Component fullRepresentation
    property Component compactRepresentation
    property int preferredRepresentation: 0
    property bool expanded: false
    property int status: 0
    property string icon: ""
    property string toolTipMainText: ""
    property string toolTipSubText: ""
 }
@@ -0,0 +1,7 @@
 # SPDX-FileCopyrightText: 2026 branderson
 # SPDX-License-Identifier: GPL-3.0-or-later
 module org.kde.plasma.plasmoid
 PlasmoidItem 1.0 PlasmoidItem.qml
 Configuration 1.0 Configuration.qml
 singleton Plasmoid 1.0 Plasmoid.qml
@@ -1,4 +1,7 @@
 #!/usr/bin/env python3
 # SPDX-FileCopyrightText: 2026 branderson
 # SPDX-License-Identifier: GPL-3.0-or-later
 """Tests for linkctl-gamepad's pure helpers.
 Run: python3 tests/test_gamepad.py
@@ -1,4 +1,7 @@
 #!/usr/bin/env bash
 # SPDX-FileCopyrightText: 2026 branderson
 # SPDX-License-Identifier: GPL-3.0-or-later
 #
 # End-to-end test of linkctl-gamepad's read loop, without a controller.
 #
@@ -1,3 +1,6 @@
 // SPDX-FileCopyrightText: 2026 branderson
 // SPDX-License-Identifier: GPL-3.0-or-later
 /*
 * Tests for the joystick applet's pure helpers.
 * Run: node tests/test_joystick_logic.js
@@ -125,7 +128,54 @@ deep(ctx.absorb('{"pan":1}\nbroken {\n{"tilt":2}'), { pan: 1, tilt: 2 },
     "absorb survives a malformed line between good ones");
 deep(ctx.absorb('Pan: 12.3°'), {}, "absorb ignores human-readable output");
 // --- uniqueify ---------------------------------------------------------
 // Plasma's executable engine keys containers by command string and serves a
 // pre-existing container's cached output instead of re-running, so repeating
 // a command verbatim reports success without moving the camera.
 eq(ctx.uniqueify("'linkctl' --force 'center'", 1),
   "'linkctl' --force 'center' # 1", "uniqueify appends a comment");
 eq(ctx.uniqueify("a", 1) === ctx.uniqueify("a", 2), false,
   "successive sequence numbers differ");
 // The suffix must be a shell comment so it cannot alter what runs.
 eq(ctx.uniqueify("x", 7).includes(" # "), true, "suffix is a shell comment");
 // A diagonal tick is two chained commands; the suffix must land at the end
 // and so comment out nothing meaningful.
 const tc = ctx.tickCommand(B, 1, 1, 6, false, false);
 eq(ctx.uniqueify(tc, 3), tc + " # 3", "uniqueify appends after a chained command");
 // --- resolveCommand ----------------------------------------------------
 // Plasma runs applet commands through `sh -c` with plasmashell's environment,
 // which never sources a login profile. A bare name therefore has to be
 // searched for explicitly or the widget cannot run it at all.
 const rc = ctx.resolveCommand("linkctl");
 eq(rc.indexOf("n='linkctl';") === 0, true, "resolveCommand sets the name first");
 eq(rc.includes('command -v "$n"'), true, "resolveCommand tries PATH first");
 eq(rc.includes('"$HOME/.local/share/mise/shims"'), true,
   "resolveCommand searches mise shims");
 eq(rc.includes('"$HOME/.local/bin"'), true, "resolveCommand searches ~/.local/bin");
 eq(rc.includes("/usr/local/bin"), true, "resolveCommand searches /usr/local/bin");
 eq(rc.includes('[ -x "$d/$n" ]'), true, "resolveCommand tests for executable");
 // $HOME must reach the shell unquoted-but-protected, never single-quoted,
 // or it would be looked up literally.
 eq(rc.includes("'$HOME"), false, "resolveCommand does not single-quote $HOME");
 // A hostile configured name must stay inert rather than running.
 const rcEvil = ctx.resolveCommand("x'; touch /tmp/pwned; '");
 eq(rcEvil.indexOf("n='x'\\''; touch /tmp/pwned; '\\'''") === 0, true,
   "resolveCommand quotes a malicious binary name");
 // --- errorMessage ------------------------------------------------------
 eq(ctx.errorMessage("", "", 127),
   "linkctl could not be run. Set its full path in settings.",
   "errorMessage explains exit 127 as a missing binary");
 eq(ctx.errorMessage("", "", 3).includes("node number changes"), true,
   "errorMessage points at a stale pinned device for exit 3");
 eq(ctx.errorMessage("", "", 6).includes("video"), true,
   "errorMessage names the video group for exit 6");
 // A real message from linkctl still wins over the canned text.
 eq(ctx.errorMessage('{"error":"something specific"}', "", 3),
   "something specific", "errorMessage prefers linkctl's own message");
 eq(ctx.errorMessage('{"error":"camera not found"}', "", 3), "camera not found",
   "errorMessage prefers the json error");
 eq(ctx.errorMessage("", "permission denied", 6), "permission denied",
@@ -1,3 +1,6 @@
 -- SPDX-FileCopyrightText: 2026 branderson
 -- SPDX-License-Identifier: GPL-3.0-or-later
 -- Lifecycle tests for obs/obs-linkctl.lua against a mock OBS API.
 -- Run: lua tests/test_obs_lifecycle.lua
 --
@@ -1,3 +1,6 @@
 -- SPDX-FileCopyrightText: 2026 branderson
 -- SPDX-License-Identifier: GPL-3.0-or-later
 -- Offline tests for the pure helpers in obs/obs-linkctl.lua.
 -- Run: lua tests/test_obs_linkctl.lua
 --
@@ -0,0 +1,127 @@
 #!/usr/bin/env bash
 # SPDX-FileCopyrightText: 2026 branderson
 # SPDX-License-Identifier: GPL-3.0-or-later
 #
 # Checks the binary-resolution command the Plasma widget generates, by running
 # it in a real shell against real directories.
 #
 # This matters because Plasma executes applet commands through
 # KProcess::setShellCommand, which is `/bin/sh -c` inheriting plasmashell's
 # environment. That environment never sources a login profile, so anything
 # that puts linkctl on PATH from a shell rc file (mise or asdf shims,
 # ~/.local/bin on some distributions) is invisible to the widget even though
 # it works in a terminal. tests/test_joystick_logic.js checks the string's
 # shape; this checks that the string actually finds a binary.
 #
 # Run: tests/test_resolver.sh
 set -uo pipefail
 HERE=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)
 readonly HERE
 readonly LOGIC="$HERE/../plasmoid/package/contents/ui/logic.js"
 command -v node >/dev/null 2>&1 || { echo "SKIP: node not available"; exit 0; }
 # Ask logic.js for the command, so the test cannot drift from the shipped code.
 CMD=$(node -e '
 const fs = require("fs"), vm = require("vm");
 const src = fs.readFileSync(process.argv[1], "utf8");
 const ctx = { Math, JSON, String };
 vm.createContext(ctx);
 vm.runInContext(src.replace(/^\s*\.pragma\s+library\s*$/m, ""), ctx);
 process.stdout.write(ctx.resolveCommand("linkctl"));
 ' "$LOGIC")
 [[ -n $CMD ]] || { echo "FAIL: could not generate the resolver command"; exit 1; }
 TMP=$(mktemp -d)
 cleanup() { rm -rf "$TMP"; }
 trap cleanup EXIT
 checks=0
 failures=0
 # Run the generated command with a deliberately bare environment, the way
 # plasmashell would, and compare what it prints.
 expect() {
    local label=$1 home=$2 path=$3 want=$4 got
    checks=$((checks + 1))
    got=$(env -i HOME="$home" PATH="$path" sh -c "$CMD" 2>/dev/null)
    if [[ $got == "$want" ]]; then
        printf 'ok   %s\n' "$label"
    else
        failures=$((failures + 1))
        printf 'FAIL %s\n       got:  %s\n       want: %s\n' \
            "$label" "${got:-<empty>}" "${want:-<empty>}"
    fi
 }
 make_exe() { mkdir -p "$(dirname "$1")" && printf '#!/bin/sh\n' > "$1" && chmod +x "$1"; }
 mkdir -p "$TMP/empty"
 # On PATH: the ordinary case, and the only one that worked before the fix.
 make_exe "$TMP/onpath/linkctl"
 expect "finds it on PATH" "$TMP/empty" "$TMP/onpath:/usr/bin:/bin" \
    "$TMP/onpath/linkctl"
 # Not on PATH at all. These are the cases that broke the widget while the
 # terminal kept working.
 make_exe "$TMP/mise/.local/share/mise/shims/linkctl"
 expect "finds a mise shim off PATH" "$TMP/mise" "/usr/bin:/bin" \
    "$TMP/mise/.local/share/mise/shims/linkctl"
 make_exe "$TMP/localbin/.local/bin/linkctl"
 expect "finds ~/.local/bin off PATH" "$TMP/localbin" "/usr/bin:/bin" \
    "$TMP/localbin/.local/bin/linkctl"
 make_exe "$TMP/cargo/.cargo/bin/linkctl"
 expect "finds ~/.cargo/bin off PATH" "$TMP/cargo" "/usr/bin:/bin" \
    "$TMP/cargo/.cargo/bin/linkctl"
 # Absent entirely: must print nothing, so the widget can say so plainly
 # rather than running something unexpected.
 expect "prints nothing when absent" "$TMP/empty" "/usr/bin:/bin" ""
 # Present but not executable must not count as found.
 mkdir -p "$TMP/noexec/.local/bin"
 printf 'not executable' > "$TMP/noexec/.local/bin/linkctl"
 expect "ignores a non-executable file" "$TMP/noexec" "/usr/bin:/bin" ""
 # PATH wins over the fallback list, so an explicit install is preferred.
 make_exe "$TMP/both/.local/bin/linkctl"
 make_exe "$TMP/preferred/linkctl"
 expect "prefers PATH over the search list" "$TMP/both" \
    "$TMP/preferred:/usr/bin:/bin" "$TMP/preferred/linkctl"
 # The uniqueness suffix exists only to change the string Plasma keys its
 # command containers by. It must not change what the shell actually runs.
 ask_logic() {
    node -e '
 const fs = require("fs"), vm = require("vm");
 const src = fs.readFileSync(process.argv[1], "utf8");
 const ctx = { Math, JSON, String };
 vm.createContext(ctx);
 vm.runInContext(src.replace(/^\s*\.pragma\s+library\s*$/m, ""), ctx);
 const tick = ctx.tickCommand(ctx.baseCmd("echo", ""), 1, 1, 6, false, false);
 process.stdout.write(process.argv[2] === "unique"
    ? ctx.uniqueify(tick, 42) : tick);
 ' "$LOGIC" "$1"
 }
 checks=$((checks + 1))
 plain_out=$(sh -c "$(ask_logic plain)" 2>&1)
 unique_out=$(sh -c "$(ask_logic unique)" 2>&1)
 if [[ $plain_out == "$unique_out" && -n $plain_out ]]; then
    printf 'ok   %s\n' "uniqueness suffix does not change what the shell runs"
 else
    failures=$((failures + 1))
    printf 'FAIL %s\n       plain:  %s\n       unique: %s\n' \
        "uniqueness suffix does not change what the shell runs" \
        "$plain_out" "$unique_out"
 fi
 printf '\n%d checks, %d failures\n' "$checks" "$failures"
 [[ $failures -eq 0 ]]
Author	SHA1	Message	Date
branderson	53bdd7da86	Merge pull request 'Add GPL-3.0 licensing and prepare for a public repository' (#4 ) from public-repo-prep into main Reviewed-on: #4 Reviewed-by: branderson <brad@branderson.io>	2026-10-16 14:55:39 -07:00
brad	f95853dc25	Add GPL-3.0 licensing and prepare for a public repository metadata.json claimed MIT while no LICENSE file existed, so the repository had no effective licence at all. It is now GPL-3.0-or-later: the full FSF text in LICENSE, the identifier in metadata.json, and REUSE-style SPDX-FileCopyrightText and SPDX-License-Identifier headers on all 33 source files, which is the convention KDE itself uses. Worth recording that GPL-3.0 is a preference here rather than an obligation. Nothing in the dependency graph forces it: linkctl is MIT and is invoked as a subprocess rather than linked, and the KDE QML modules the applet imports are LGPL. Removed two things that should not ship in a public repository. tests's QML linter had an absolute sandbox path, /tmp/pyside/PySide6/qmllint, baked into its search list; it now looks for Qt's qmllint and PySide6's pyside6-qmllint on PATH and honours a QMLLINT override, and says how to install one when it finds nothing. The systemd unit carried a Documentation= URL pointing at a host that does not exist, and its ExecStart silently assumed a particular checkout directory; the URL is gone and the path is now an obvious PATH/TO/CHECKOUT placeholder next to the comment telling you to edit it. Added a Credits section naming the work this is built on, since the project is mostly glue: linkctl does the camera control, schlarpc's firmware teardown documents the extension-unit protocol, and vrwallace's controller established that the Link 2 needs both pan and tilt axes in a single VIDIOC_S_EXT_CTRLS call, which is the detail the whole thing depends on. Also made the two Python tests executable, matching the other scripts. Audited for operator-specific detail: no credentials, tokens, private hostnames, IP addresses or absolute home paths in any tracked file or anywhere in the history's diffs. Three merge commits do carry Reviewed-on and Reviewed-by trailers naming a private forge, added by the forge at merge time; those are commit metadata rather than file content and are handled separately. Tested: 169 checks across seven suites plus the QML linter, all passing after the header insertion, which confirms it did not disturb the order-sensitive `.pragma library` line in logic.js or the qmldir module definitions. shellcheck clean.	2026-10-13 20:54:23 -07:00
branderson	043dd69e5e	Merge pull request 'Fix QML scope error that disabled all camera movement, and close the lint gap that hid it' (#3 ) from widget-resolve-linkctl into main Reviewed-on: #3 Reviewed-by: branderson <brad@branderson.io>	2026-10-07 23:52:28 -07:00
brad	1f0d5ec0f4	Fix the QML scope error that disabled all camera movement The joystick, the keyboard and every movement command did nothing. The cause was in the journal all along: main.qml: ReferenceError: stick is not defined `stick` is the id of the Joystick inside the `fullRepresentation` Component. Ids declared inside a Component are not visible from the enclosing scope, so the inNx, inNy and inEngaged properties declared on the root object could not resolve it. Those bindings threw, inEngaged stayed false, the tick timer never ran, and no input of any kind produced a command. Everything else kept working, which is why status, zoom and binary resolution all looked healthy in the log while dragging did nothing. The three properties now live inside the fullRepresentation, where both `stick` and the root object are in scope. Also fixed from the same log: the configuration page logged "does not have a property called cfg_<name>Default" for all eight keys plus `title`, because Plasma assigns those when it instantiates a config page and they were never declared. They are declared now, so the Defaults button has something to compare against. Startup probed for the binary twice, because Component.onCompleted and onConfiguredBinChanged both fired while the component was still being set up, duplicating every follow-up query. The second path is now guarded. The diagnostics readout is one label built by one guarded function instead of a Repeater over an array of expressions. In that earlier shape a single throwing sub-expression discards the whole model and the panel renders empty, which is precisely the failure mode it is supposed to diagnose, and is what it did. The real repair is to the verification, in tests/lint_qml.py. qmllint had flagged `stick`, and a filter discarded it. Without the KDE QML modules present qmllint cannot resolve PlasmoidItem, so nothing inside it has a known scope and all 87 identifiers in a clean file are reported as unqualified access. Filtering that category wholesale was the only way to get a readable result, and it threw away the one finding that mattered. tests/qmlstubs now holds minimal stand-ins for org.kde.plasma.plasmoid, org.kde.plasma.components, org.kde.plasma.plasma5support and org.kde.kirigami, so the types resolve and the scope analysis is meaningful. With the stubs in place the only remaining unqualified accesses are `root`, `sh` and `modelData`, each allowlisted with a reason, so anything else is a genuine finding. Confirmed by reintroducing the bug: the linter fails and names the exact lines and identifier. Tested: 169 checks across seven suites plus the new linter, all passing. shellcheck clean.	2026-10-07 23:29:08 -07:00
brad	29b9971da8	Stop the keyboard path from disabling the pointer path Dragging the joystick stopped doing anything, at the same time as the keyboard support arrived and without the keyboard working either. One cause explains both. Before the keyboard existed, the tick timer ran on `stick.engaged` and read `stick.nx` directly, so dragging depended on nothing but the pad. Adding the keyboard routed that same path through the new helper: inEngaged reads keyEngaged, which reads keyVec, which calls Logic.vectorFromKeys. If that function is not callable the binding throws, keyVec is undefined, and inNx and inEngaged go with it, so the timer never runs and the pointer stops working too. Coupling the previously working path to brand new code with no fallback was the mistake, independent of why the helper might be missing. One way it can be missing: Qt caches compiled QML and JS on disk, and replacing an applet's files does not reliably invalidate that cache, so a stale compiled logic.js from before the helper was added is enough. install.sh now clears the cache on every install, which costs one slower load. The keyboard vector is now computed defensively and the pointer path reads plain numbers that cannot throw, so a missing or stale helper degrades to "no keyboard" rather than "nothing works". Removed the two gates that could also silently stop everything. resolvedBin starts as the configured name instead of empty, so there is always something to run and the search can only upgrade it; the tick timer no longer requires resolution to have succeeded; and refresh, action and refreshTracking no longer return early doing nothing. A failed probe keeps the fallback and says so rather than disabling the widget, which matters because a packaged install is on PATH regardless. Added a Diagnostics toggle showing live internal state: the resolved and configured binary, the device, which helpers are actually callable, the stick's own numbers, the keyboard vector, whether the panel holds focus, whether the timer is running, the busy flag, the sequence number, and the last command with its exit code. Every command and result also goes to the journal via console.log. Every failure so far has presented as "nothing happens", which is the one symptom that carries no information at all. Tested: 169 checks across seven suites, all passing. shellcheck clean, QML free of syntax errors. The cache clearing was exercised against a fake cache tree under a temporary XDG_CACHE_HOME. Not verified in a live Plasma session. The coupling described above is plain in the code and is a real defect whatever triggered it; whether a stale QML cache was the trigger is unconfirmed.	2026-10-07 23:19:28 -07:00
brad	82974f242d	Never reuse a command string for Plasma's executable engine Plasma's executable data engine keys its command containers by the command string. DataEngine::connectSource calls requestSource, which returns a pre-existing container when one matches, and then delivers that container's cached data; the process itself only starts when the container is first constructed. Re-issuing a byte-identical command therefore reports success, with a plausible exit code and stdout, while running nothing at all. That is precisely what the joystick produces. A stick held at full deflection emits the same command every tick, so the camera would take one step and then stop, with the widget showing no error because it received a successful result. The same applies to a key held down, and to repeated presses of Center or Home. Every command now carries a trailing shell comment holding a counter, so the engine never sees a string it has already cached. `#` starts a comment in sh, and the commands already contain quotes so they always go through sh -c, meaning the suffix changes the engine's key without changing what runs. Resolution state moved from comparing the probe's command string to a plain boolean, since the string is no longer stable across calls. Tested: 65 node checks, including that successive sequence numbers differ and that the suffix lands after a chained diagonal command. tests/test_resolver.sh additionally runs the generated command through a real shell both with and without the suffix and requires identical output, so the uniqueness trick cannot quietly alter behaviour. Full suite of 172 checks across seven suites passes, shellcheck clean, QML free of syntax errors. This is a defect established by reading Plasma's source, not a confirmed diagnosis of the reported fault. The two earlier theories for that fault, PATH resolution and a stale pinned device node, were both ruled out by the reporter: linkctl is installed from a pacman package into /usr/bin, and the widget's device field was never set.	2026-10-07 23:10:02 -07:00
brad	fa2d4e89d8	Resolve linkctl explicitly in the widget, and surface failures The widget could not run linkctl even though the binary worked fine from a terminal and through linkctl-macro. Plasma executes applet commands with KProcess::setShellCommand, which is `/bin/sh -c` inheriting plasmashell's own environment. That environment never sources a login profile, so any install that puts linkctl on PATH from a shell rc file is invisible to the widget: mise and asdf shims, and ~/.local/bin on some distributions. bin/linkctl-macro has carried a resolver for exactly this reason since it was written, and the widget should have had one too rather than trusting a bare name. It now searches the same locations at startup, caches the absolute path, and holds commands back until it has one. Three further changes, all about not failing silently. The status line is now always visible. It previously appeared only while the pan and tilt readout was unknown, so any failure after the first successful poll was hidden behind a stale position. errorMessage explains the exit codes that are easy to misread. 127 is the shell failing to run the binary rather than anything about the camera, and 3 most often means a pinned device node has moved, which happens because the Link's /dev/videoN number is not stable across power cycles or replugs. A watchdog clears the busy flag after four seconds. Plasma's executable engine silently drops a request while an identical command is still running, so a lost callback could leave busy set and freeze every subsequent step with nothing to indicate why. Also corrected the focus timing for the keyboard support: Component.onCompleted can run before the popup is on screen, where the focus grab does not stick, so the panel claims focus whenever the popup opens and clears held keys when it closes. Tested: 164 checks across seven suites, all passing. tests/test_resolver.sh is new and runs the generated resolver in a real shell against real directories, confirming it finds a binary on PATH, finds mise shims, ~/.local/bin and ~/.cargo/bin when they are not on PATH, prefers PATH when both exist, ignores a non-executable file, and prints nothing when the binary is genuinely absent. 11 new node checks cover the command's shape and confirm a hostile configured name stays quoted. Not verified against a live Plasma session. The PATH mechanism is established from KProcess's documented behaviour and the resolver from a real shell, but whether this was the actual cause on the reporter's machine is unconfirmed.	2026-10-07 22:51:23 -07:00
branderson	3cd99e7bf5	Merge pull request 'Add keyboard, gamepad and directional-shortcut control for the gimbal' (#2 ) from joystick-keyboard-and-gamepad into main Reviewed-on: #2 Reviewed-by: branderson <brad@branderson.io>	2026-10-07 22:27:07 -07:00