first commit

.gitignore

@@ -0,0 +1,57 @@
+*~
+
+# Prerequisites
+*.d
+
+# Object files
+*.o
+*.ko
+*.obj
+*.elf
+
+# Linker output
+*.ilk
+*.map
+*.exp
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Libraries
+*.lib
+*.a
+*.la
+*.lo
+
+# Shared objects (inc. Windows DLLs)
+*.dll
+*.so
+*.so.*
+*.dylib
+
+# Executables
+*.exe
+*.out
+*.app
+*.i*86
+*.x86_64
+*.hex
+
+# Debug files
+*.dSYM/
+*.su
+*.idb
+*.pdb
+
+# Kernel Module Compile Results
+*.mod*
+*.cmd
+.tmp_versions/
+modules.order
+Module.symvers
+Mkfile.old
+dkms.conf
+
+# debug information files
+*.dwo

COPYING

@@ -0,0 +1,675 @@
+                    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/philosophy/why-not-lgpl.html>.
+

README.md

@@ -0,0 +1,3 @@
+# text-viewer
+
+A description of this project.

com.example.TextViewer.json

@@ -0,0 +1,44 @@
+{
+    "id" : "com.example.TextViewer",
+    "runtime" : "org.gnome.Platform",
+    "runtime-version" : "48",
+    "sdk" : "org.gnome.Sdk",
+    "command" : "text-viewer",
+    "finish-args" : [
+        "--share=network",
+        "--share=ipc",
+        "--socket=fallback-x11",
+        "--device=dri",
+        "--socket=wayland"
+    ],
+    "cleanup" : [
+        "/include",
+        "/lib/pkgconfig",
+        "/man",
+        "/share/doc",
+        "/share/gtk-doc",
+        "/share/man",
+        "/share/pkgconfig",
+        "*.la",
+        "*.a"
+    ],
+    "modules" : [
+        {
+            "name" : "text-viewer",
+            "builddir" : true,
+            "buildsystem" : "meson",
+            "sources" : [
+                {
+                    "type" : "git",
+                    "url" : "file:///home/vetetix/Projects"
+                }
+            ],
+            "config-opts" : [
+                "--libdir=lib"
+            ]
+        }
+    ],
+    "build-options" : {
+        "env" : {        }
+    }
+}

data/com.example.TextViewer.desktop.in

@@ -0,0 +1,10 @@
+[Desktop Entry]
+Name=text-viewer
+Exec=text-viewer
+Icon=com.example.TextViewer
+Terminal=false
+Type=Application
+Categories=Utility;
+Keywords=GTK;
+StartupNotify=true
+DBusActivatable=true

data/com.example.TextViewer.gschema.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<schemalist gettext-domain="text-viewer">
+	<schema id="com.example.TextViewer" path="/com/example/TextViewer/">
+	</schema>
+</schemalist>

data/com.example.TextViewer.metainfo.xml.in

@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<component type="desktop-application">
+  <id>com.example.TextViewer</id>
+  <metadata_license>CC0-1.0</metadata_license>
+  <project_license>GPL-3.0-or-later</project_license>
+
+  <name>Text-viewer</name>
+  <summary>Keep the summary shorter, between 10 and 35 characters</summary>
+  <description>
+    <p>No description</p>
+  </description>
+
+  <developer id="tld.vendor">
+    <name>Developer name</name>
+  </developer>
+
+  <!-- Required: Should be a link to the upstream homepage for the component -->
+  <url type="homepage">https://example.org/</url>
+  <!-- Recommended: It is highly recommended for open-source projects to display the source code repository -->
+  <url type="vcs-browser">https://example.org/repository</url>
+  <!-- Should point to the software's bug tracking system, for users to report new bugs -->
+  <url type="bugtracker">https://example.org/issues</url>
+  <!-- Should link a FAQ page for this software, to answer some of the most-asked questions in detail -->
+  <!-- URLs of this type should point to a webpage where users can submit or modify translations of the upstream project -->
+  <url type="translate">https://example.org/translate</url>
+  <url type="faq">https://example.org/faq</url>
+  <!-- Should provide a web link to an online user's reference, a software manual or help page -->
+  <url type="help">https://example.org/help</url>
+  <!-- URLs of this type should point to a webpage showing information on how to donate to the described software project -->
+  <url type="donation">https://example.org/donate</url>
+  <!-- This could for example be an HTTPS URL to an online form or a page describing how to contact the developer -->
+  <url type="contact">https://example.org/contact</url>
+  <!-- URLs of this type should point to a webpage showing information on how to contribute to the described software project -->
+  <url type="contribute">https://example.org/contribute</url>
+
+  <translation type="gettext">text-viewer</translation>
+  <!-- All graphical applications having a desktop file must have this tag in the MetaInfo.
+     If this is present, appstreamcli compose will pull icons, keywords and categories from the desktop file. -->
+  <launchable type="desktop-id">com.example.TextViewer.desktop</launchable>
+  <!-- Use the OARS website (https://hughsie.github.io/oars/generate.html) to generate these and make sure to use oars-1.1 -->
+  <content_rating type="oars-1.1" />
+
+  <!-- Applications should set a brand color in both light and dark variants like so -->
+  <branding>
+    <color type="primary" scheme_preference="light">#ff00ff</color>
+    <color type="primary" scheme_preference="dark">#993d3d</color>
+  </branding>
+
+  <screenshots>
+    <screenshot type="default">
+      <image>https://example.org/example1.png</image>
+      <caption>A caption</caption>
+    </screenshot>
+    <screenshot>
+      <image>https://example.org/example2.png</image>
+      <caption>A caption</caption>
+    </screenshot>
+  </screenshots>
+
+  <releases>
+    <release version="1.0.1" date="2024-01-18">
+      <url type="details">https://example.org/changelog.html#version_1.0.1</url>
+      <description translate="no">
+        <p>Release description</p>
+        <ul>
+          <li>List of changes</li>
+          <li>List of changes</li>
+        </ul>
+      </description>
+    </release>
+  </releases>
+
+</component>

data/com.example.TextViewer.service.in

@@ -0,0 +1,3 @@
+[D-BUS Service]
+Name=com.example.TextViewer
+Exec=@bindir@/text-viewer --gapplication-service

data/icons/meson.build

@@ -0,0 +1,13 @@
+application_id = 'com.example.TextViewer'
+
+scalable_dir = 'hicolor' / 'scalable' / 'apps'
+install_data(
+  scalable_dir / ('@0@.svg').format(application_id),
+  install_dir: get_option('datadir') / 'icons' / scalable_dir
+)
+
+symbolic_dir = 'hicolor' / 'symbolic' / 'apps'
+install_data(
+  symbolic_dir / ('@0@-symbolic.svg').format(application_id),
+  install_dir: get_option('datadir') / 'icons' / symbolic_dir
+)

data/meson.build

@@ -0,0 +1,46 @@
+desktop_file = i18n.merge_file(
+        input: 'com.example.TextViewer.desktop.in',
+       output: 'com.example.TextViewer.desktop',
+         type: 'desktop',
+       po_dir: '../po',
+      install: true,
+  install_dir: get_option('datadir') / 'applications'
+)
+
+desktop_utils = find_program('desktop-file-validate', required: false)
+if desktop_utils.found()
+  test('Validate desktop file', desktop_utils, args: [desktop_file])
+endif
+
+appstream_file = i18n.merge_file(
+        input: 'com.example.TextViewer.metainfo.xml.in',
+       output: 'com.example.TextViewer.metainfo.xml',
+       po_dir: '../po',
+      install: true,
+  install_dir: get_option('datadir') / 'metainfo'
+)
+
+appstreamcli = find_program('appstreamcli', required: false, disabler: true)
+test('Validate appstream file', appstreamcli,
+     args: ['validate', '--no-net', '--explain', appstream_file])
+
+install_data('com.example.TextViewer.gschema.xml',
+  install_dir: get_option('datadir') / 'glib-2.0' / 'schemas'
+)
+
+compile_schemas = find_program('glib-compile-schemas', required: false, disabler: true)
+test('Validate schema file',
+     compile_schemas,
+     args: ['--strict', '--dry-run', meson.current_source_dir()])
+
+
+service_conf = configuration_data()
+service_conf.set('bindir', get_option('prefix') / get_option('bindir'))
+configure_file(
+  input: 'com.example.TextViewer.service.in',
+  output: 'com.example.TextViewer.service',
+  configuration: service_conf,
+  install_dir: get_option('datadir') / 'dbus-1' / 'services'
+)
+
+subdir('icons')

meson.build

@@ -0,0 +1,93 @@
+project('text-viewer', 'c',
+          version: '0.1.0',
+    meson_version: '>= 1.0.0',
+  default_options: [ 'warning_level=2', 'werror=false', 'c_std=gnu11', ],
+)
+
+i18n = import('i18n')
+gnome = import('gnome')
+cc = meson.get_compiler('c')
+
+config_h = configuration_data()
+config_h.set_quoted('PACKAGE_VERSION', meson.project_version())
+config_h.set_quoted('GETTEXT_PACKAGE', 'text-viewer')
+config_h.set_quoted('LOCALEDIR', get_option('prefix') / get_option('localedir'))
+configure_file(output: 'config.h', configuration: config_h)
+add_project_arguments(['-I' + meson.project_build_root()], language: 'c')
+
+
+project_c_args = []
+test_c_args = [
+  '-Wcast-align',
+  '-Wdeclaration-after-statement',
+  '-Werror=address',
+  '-Werror=array-bounds',
+  '-Werror=empty-body',
+  '-Werror=implicit',
+  '-Werror=implicit-function-declaration',
+  '-Werror=incompatible-pointer-types',
+  '-Werror=init-self',
+  '-Werror=int-conversion',
+  '-Werror=int-to-pointer-cast',
+  '-Werror=main',
+  '-Werror=misleading-indentation',
+  '-Werror=missing-braces',
+  '-Werror=missing-include-dirs',
+  '-Werror=nonnull',
+  '-Werror=overflow',
+  '-Werror=parenthesis',
+  '-Werror=pointer-arith',
+  '-Werror=pointer-to-int-cast',
+  '-Werror=redundant-decls',
+  '-Werror=return-type',
+  '-Werror=sequence-point',
+  '-Werror=shadow',
+  '-Werror=strict-prototypes',
+  '-Werror=trigraphs',
+  '-Werror=undef',
+  '-Werror=write-strings',
+  '-Wformat-nonliteral',
+  '-Wignored-qualifiers',
+  '-Wimplicit-function-declaration',
+  '-Wlogical-op',
+  '-Wmissing-declarations',
+  '-Wmissing-format-attribute',
+  '-Wmissing-include-dirs',
+  '-Wmissing-noreturn',
+  '-Wnested-externs',
+  '-Wno-cast-function-type',
+  '-Wno-dangling-pointer',
+  '-Wno-missing-field-initializers',
+  '-Wno-sign-compare',
+  '-Wno-unused-parameter',
+  '-Wold-style-definition',
+  '-Wpointer-arith',
+  '-Wredundant-decls',
+  '-Wstrict-prototypes',
+  '-Wswitch-default',
+  '-Wswitch-enum',
+  '-Wundef',
+  '-Wuninitialized',
+  '-Wunused',
+  '-fno-strict-aliasing',
+  ['-Werror=format-security', '-Werror=format=2'],
+]
+if get_option('buildtype') != 'plain'
+  test_c_args += '-fstack-protector-strong'
+endif
+foreach arg: test_c_args
+  if cc.has_multi_arguments(arg)
+    project_c_args += arg
+  endif
+endforeach
+add_project_arguments(project_c_args, language: 'c')
+
+subdir('data')
+subdir('src')
+subdir('po')
+
+gnome.post_install(
+     glib_compile_schemas: true,
+    gtk_update_icon_cache: true,
+  update_desktop_database: true,
+)

po/LINGUAS

@@ -0,0 +1 @@
+# Please keep this file sorted alphabetically.

po/POTFILES.in

@@ -0,0 +1,8 @@
+# List of source files containing translatable strings.
+# Please keep this file sorted alphabetically.
+data/com.example.TextViewer.desktop.in
+data/com.example.TextViewer.metainfo.xml.in
+data/com.example.TextViewer.gschema.xml
+src/main.c
+src/text-viewer-window.c
+src/text-viewer-window.ui

po/meson.build

@@ -0,0 +1 @@
+i18n.gettext('text-viewer', preset: 'glib')

src/main.c

@@ -0,0 +1,42 @@
+/* main.c
+ *
+ * Copyright 2025 Thomas Arnoux
+ *
+ * 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/>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+#include "config.h"
+
+#include <glib/gi18n.h>
+
+#include "text-viewer-application.h"
+
+int
+main (int   argc,
+      char *argv[])
+{
+	g_autoptr(TextViewerApplication) app = NULL;
+	int ret;
+
+	bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
+	bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
+	textdomain (GETTEXT_PACKAGE);
+
+	app = text_viewer_application_new ("com.example.TextViewer", G_APPLICATION_DEFAULT_FLAGS);
+	ret = g_application_run (G_APPLICATION (app), argc, argv);
+
+	return ret;
+}

src/meson.build

@@ -0,0 +1,20 @@
+text_viewer_sources = [
+  'main.c',
+  'text-viewer-application.c',
+  'text-viewer-window.c',
+]
+
+text_viewer_deps = [
+  dependency('gtk4'),
+  dependency('libadwaita-1', version: '>= 1.4'),
+]
+
+text_viewer_sources += gnome.compile_resources('text-viewer-resources',
+  'text-viewer.gresource.xml',
+  c_name: 'text_viewer'
+)
+
+executable('text-viewer', text_viewer_sources,
+  dependencies: text_viewer_deps,
+       install: true,
+)

src/shortcuts-dialog.ui

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <object class="AdwShortcutsDialog" id="shortcuts_dialog">
+    <child>
+      <object class="AdwShortcutsSection">
+        <property name="title" translatable="yes">Shortcuts</property>
+        <child>
+          <object class="AdwShortcutsItem">
+            <property name="title" translatable="yes" context="shortcut window">Show Shortcuts</property>
+            <property name="action-name">app.shortcuts</property>
+          </object>
+        </child>
+        <child>
+          <object class="AdwShortcutsItem">
+            <property name="title" translatable="yes" context="shortcut window">Quit</property>
+            <property name="action-name">app.quit</property>
+          </object>
+        </child>
+      </object>
+    </child>
+  </object>
+</interface>

src/text-viewer-application.c

@@ -0,0 +1,123 @@
+/* text-viewer-application.c
+ *
+ * Copyright 2025 Thomas Arnoux
+ *
+ * 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/>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+#include "config.h"
+#include <glib/gi18n.h>
+
+#include "text-viewer-application.h"
+#include "text-viewer-window.h"
+
+struct _TextViewerApplication
+{
+	AdwApplication parent_instance;
+};
+
+G_DEFINE_FINAL_TYPE (TextViewerApplication, text_viewer_application, ADW_TYPE_APPLICATION)
+
+TextViewerApplication *
+text_viewer_application_new (const char        *application_id,
+                             GApplicationFlags  flags)
+{
+	g_return_val_if_fail (application_id != NULL, NULL);
+
+	return g_object_new (TEXT_VIEWER_TYPE_APPLICATION,
+	                     "application-id", application_id,
+	                     "flags", flags,
+	                     "resource-base-path", "/com/example/TextViewer",
+	                     NULL);
+}
+
+static void
+text_viewer_application_activate (GApplication *app)
+{
+	GtkWindow *window;
+
+	g_assert (TEXT_VIEWER_IS_APPLICATION (app));
+
+	window = gtk_application_get_active_window (GTK_APPLICATION (app));
+
+	if (window == NULL)
+		window = g_object_new (TEXT_VIEWER_TYPE_WINDOW,
+		                       "application", app,
+		                       NULL);
+
+	gtk_window_present (window);
+}
+
+static void
+text_viewer_application_class_init (TextViewerApplicationClass *klass)
+{
+	GApplicationClass *app_class = G_APPLICATION_CLASS (klass);
+
+	app_class->activate = text_viewer_application_activate;
+}
+
+static void
+text_viewer_application_about_action (GSimpleAction *action,
+                                      GVariant      *parameter,
+                                      gpointer       user_data)
+{
+	static const char *developers[] = {"Thomas Arnoux", NULL};
+	TextViewerApplication *self = user_data;
+	GtkWindow *window = NULL;
+
+	g_assert (TEXT_VIEWER_IS_APPLICATION (self));
+
+	window = gtk_application_get_active_window (GTK_APPLICATION (self));
+
+	adw_show_about_dialog (GTK_WIDGET (window),
+	                       "application-name", "text-viewer",
+	                       "application-icon", "com.example.TextViewer",
+	                       "developer-name", "Thomas Arnoux",
+	                       "translator-credits", _("translator-credits"),
+	                       "version", "0.1.0",
+	                       "developers", developers,
+	                       "copyright", "© 2025 Thomas Arnoux",
+	                       NULL);
+}
+
+static void
+text_viewer_application_quit_action (GSimpleAction *action,
+                                     GVariant      *parameter,
+                                     gpointer       user_data)
+{
+	TextViewerApplication *self = user_data;
+
+	g_assert (TEXT_VIEWER_IS_APPLICATION (self));
+
+	g_application_quit (G_APPLICATION (self));
+}
+
+static const GActionEntry app_actions[] = {
+	{ "quit", text_viewer_application_quit_action },
+	{ "about", text_viewer_application_about_action },
+};
+
+static void
+text_viewer_application_init (TextViewerApplication *self)
+{
+	g_action_map_add_action_entries (G_ACTION_MAP (self),
+	                                 app_actions,
+	                                 G_N_ELEMENTS (app_actions),
+	                                 self);
+	gtk_application_set_accels_for_action (GTK_APPLICATION (self),
+	                                       "app.quit",
+	                                       (const char *[]) { "<control>q", NULL });
+}

src/text-viewer-application.h

@@ -0,0 +1,34 @@
+/* text-viewer-application.h
+ *
+ * Copyright 2025 Thomas Arnoux
+ *
+ * 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/>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+#pragma once
+
+#include <adwaita.h>
+
+G_BEGIN_DECLS
+
+#define TEXT_VIEWER_TYPE_APPLICATION (text_viewer_application_get_type())
+
+G_DECLARE_FINAL_TYPE (TextViewerApplication, text_viewer_application, TEXT_VIEWER, APPLICATION, AdwApplication)
+
+TextViewerApplication *text_viewer_application_new (const char        *application_id,
+                                                    GApplicationFlags  flags);
+
+G_END_DECLS

src/text-viewer-window.c

@@ -0,0 +1,48 @@
+/* text-viewer-window.c
+ *
+ * Copyright 2025 Thomas Arnoux
+ *
+ * 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/>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+#include "config.h"
+
+#include "text-viewer-window.h"
+
+struct _TextViewerWindow
+{
+	AdwApplicationWindow  parent_instance;
+
+	/* Template widgets */
+	GtkLabel            *label;
+};
+
+G_DEFINE_FINAL_TYPE (TextViewerWindow, text_viewer_window, ADW_TYPE_APPLICATION_WINDOW)
+
+static void
+text_viewer_window_class_init (TextViewerWindowClass *klass)
+{
+	GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+
+	gtk_widget_class_set_template_from_resource (widget_class, "/com/example/TextViewer/text-viewer-window.ui");
+	gtk_widget_class_bind_template_child (widget_class, TextViewerWindow, label);
+}
+
+static void
+text_viewer_window_init (TextViewerWindow *self)
+{
+	gtk_widget_init_template (GTK_WIDGET (self));
+}

src/text-viewer-window.h

@@ -0,0 +1,31 @@
+/* text-viewer-window.h
+ *
+ * Copyright 2025 Thomas Arnoux
+ *
+ * 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/>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+#pragma once
+
+#include <adwaita.h>
+
+G_BEGIN_DECLS
+
+#define TEXT_VIEWER_TYPE_WINDOW (text_viewer_window_get_type())
+
+G_DECLARE_FINAL_TYPE (TextViewerWindow, text_viewer_window, TEXT_VIEWER, WINDOW, AdwApplicationWindow)
+
+G_END_DECLS

src/text-viewer-window.ui

@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <requires lib="gtk" version="4.0"/>
+  <requires lib="Adw" version="1.0"/>
+  <template class="TextViewerWindow" parent="AdwApplicationWindow">
+    <property name="title" translatable="yes">Text-viewer</property>
+    <property name="default-width">800</property>
+    <property name="default-height">600</property>
+    <property name="content">
+      <object class="AdwToolbarView">
+        <child type="top">
+          <object class="AdwHeaderBar">
+            <child type="end">
+              <object class="GtkMenuButton">
+                <property name="primary">True</property>
+                <property name="icon-name">open-menu-symbolic</property>
+                <property name="tooltip-text" translatable="yes">Main Menu</property>
+                <property name="menu-model">primary_menu</property>
+              </object>
+            </child>
+          </object>
+        </child>
+        <property name="content">
+          <object class="GtkLabel" id="label">
+            <property name="label" translatable="yes">Hello, World!</property>
+            <style>
+              <class name="title-1"/>
+            </style>
+          </object>
+        </property>
+      </object>
+    </property>
+  </template>
+  <menu id="primary_menu">
+    <section>
+      <item>
+        <attribute name="label" translatable="yes">_Preferences</attribute>
+        <attribute name="action">app.preferences</attribute>
+      </item>
+      <item>
+        <attribute name="label" translatable="yes">_Keyboard Shortcuts</attribute>
+        <attribute name="action">app.shortcuts</attribute>
+      </item>
+      <item>
+        <attribute name="label" translatable="yes">_About Text-viewer</attribute>
+        <attribute name="action">app.about</attribute>
+      </item>
+    </section>
+  </menu>
+</interface>

src/text-viewer.gresource.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<gresources>
+  <gresource prefix="/com/example/TextViewer">
+    <file preprocess="xml-stripblanks">text-viewer-window.ui</file>
+    <file preprocess="xml-stripblanks">shortcuts-dialog.ui</file>
+  </gresource>
+</gresources>