initial commit

23 files changed, 1273 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..7f0b779
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+bin/*
+.nvimsession
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..53d1f3d
--- /dev/null
+++ b/LICENSE
@@ -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/licenses/why-not-lgpl.html>.
+
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..04e10b8
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,37 @@
+## see LICENSE file for licensing information ##
+
+
+INSTALL_DIR = /usr/bin
+SYS_CFG_DIR = /etc
+
+
+
+.PHONY: main install check clean uninstall
+
+NAME = mktree
+
+main : bin/mktree bin/mktree.1.gz
+
+bin/mktree.1.gz : doc/mktree.1
+	@awk -f make.awk $< | gzip -c > $@
+
+bin/mktree : src/main.sh src/args.sh src/util.sh
+	@awk -f make.awk $< > $@
+	@chmod +x $@
+
+install : main
+	cp bin/$(NAME) $(INSTALL_DIR)/
+	cp -r def/* $(SYS_CFG_DIR)/mktree/
+
+check :
+	@mkdir -p src inc res bin
+	@[[ -f src/main.sh ]] && echo "Done: Yup, the main file is there." || echo "Error: Were did the script go?"
+
+clean :
+	@rm -f bin/*
+
+uninstall :
+	rm -f $(INSTALL_DIR)/$(NAME)
+	rm -rf $(SYS_CFG_DIR)/mktree
+
+
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..e8769e4
--- /dev/null
+++ b/README.md
@@ -0,0 +1,23 @@
+# mktree #
+
+A simple and extensible project setup utility.
+
+
+## Building ##
+
+Run `make`.
+
+## Installing ##
+
+Run `make install`.
+
+## Documentation ##
+
+See man page.
+
+## License Information ##
+
+GNU GPLv3+
+
+See LICENSE file.
+
diff --git a/args.awk b/args.awk
new file mode 100644
index 0000000..17d9431
--- /dev/null
+++ b/args.awk
@@ -0,0 +1,119 @@
+
+BEGIN {
+  opt_count = 0;
+  FIELDS["short"] = 0; # short option
+  FIELDS["long"]  = 0; # long option
+  FIELDS["arg"]   = 0; # option argument
+  FIELDS["desc"]  = 0; # description
+  FIELDS["func"]  = 0; # callback function
+}
+
+
+
+func PrintShell() {
+  printf "OPTIONS=(\n# callback short long argument\n"
+  for (i = 0; i < opt_count; i++)
+    printf("'%s' '%s' '%s' '%s' '%s'\n",
+        OPTIONS["func", i], OPTIONS["short", i],
+        OPTIONS["long", i], OPTIONS["arg", i],
+        OPTIONS["desc", i]);
+  printf(")\n");
+}
+
+func PrintMan() {
+  for (i = 0; i < opt_count; i++) {
+    short = OPTIONS["short", i];
+    long = OPTIONS["long", i];
+    arg = OPTIONS["arg", i];
+    desc = OPTIONS["desc", i];
+    if (arg)
+      printf(".TP\n.BI \"-%1s \" %s \", --%s=\" %s",
+             short, arg, long, arg);
+    else
+      printf(".TP\n-%1s, --%s",
+             short, long);
+    printf("\n%s\n\n", desc);
+  }
+}
+
+
+
+
+func EmptyEntry(entry) {
+  #printf("Checking for empty entry at [%d]...\n", entry);
+  for (type in FIELDS) {
+    #printf("  Checking for empty field '%s'\n", type);
+    if (OPTIONS[type, entry])
+      return 0;
+  }
+  return 1;
+}
+
+
+/^\s*#/ { # comment
+  next;
+}
+
+
+/^\s*$/ { # end of entry
+  if (!EmptyEntry(opt_count))
+    opt_count++;
+  next;
+}
+
+
+/^\s*-/ { # option line
+  for (i = 1; i <= NF; i++) {
+    switch ($i) {
+      case /^-+$/: # ignore fields with only dashes
+        continue;
+      case /^--\w[\w-]*/:  # long option
+        sub(/^--/, "", $i);
+        type = "long";
+        break;
+      case /^-\w+/:   # short option
+        sub(/^-/, "", $i);
+        type = "short";
+        break;
+      case /^\w+/:    # option argument
+        type = "arg";
+        break;
+    }
+    OPTIONS[type, opt_count] = $i;
+  }
+  
+}
+
+
+/^\s*@/ { # function callback line
+  sub(/^\s*@\s*/, "");
+  OPTIONS["func", opt_count] = $1;
+  next;
+}
+
+
+/^\s*"/ {
+  sub(/^\s*"\s*/, "");
+  if (OPTIONS["desc", opt_count] !~ /\s$/)
+    OPTIONS["desc", opt_count] += " ";
+  OPTIONS["desc", opt_count] = $0;
+  next;
+}
+
+
+END {
+  if (!EmptyEntry(opt_count)) opt_count++;
+  
+  if (!OUTPUT) OUTPUT = "shell";
+  switch (OUTPUT) {
+    case "shell":
+      PrintShell();
+      break;
+    case "man":
+      PrintMan();
+      break;
+    default:
+      printf("Unknown format '%s'", OUTPUT) > "/dev/stderr";
+  }
+}
+
diff --git a/def/skel/c/.setup.sh b/def/skel/c/.setup.sh
new file mode 100644
index 0000000..5a3c82a
--- /dev/null
+++ b/def/skel/c/.setup.sh
@@ -0,0 +1,3 @@
+
+echo -n "\nNAME = $(basename $(pwd))\n" >> config.mk
+
diff --git a/def/skel/c/Makefile b/def/skel/c/Makefile
new file mode 100644
index 0000000..42d9f6d
--- /dev/null
+++ b/def/skel/c/Makefile
@@ -0,0 +1,34 @@
+# see LICENSE file for license information #
+
+.PHONY: default clean install uninstall
+
+include config.mk
+
+SRC ?= src
+INC ?= inc
+RES ?= res
+OBJ ?= obj
+BIN ?= bin
+
+NAME ?= out
+
+default : $(BIN)/$(NAME)
+
+clean :
+	@mkdir -p $(SRC) $(INC) $(OBJ) $(BIN)
+	rm -f $(OBJ)/*.o $(BIN)/*
+
+install : $(BIN)/$(NAME)
+	@cp $< $(INSTALL_DIR)/
+
+uninstall :
+	@rm $(INSTALL_DIR)/$(NAME)
+
+$(BIN)/$(NAME) : $(COMPONENTS:%=$(OBJ)/%.o)
+	@mkdir -p $(BIN)
+	$(CC) $(LDFLAGS) $^ -o $@
+
+$(OBJ)/%.o : $(SRC)/%.c
+	@mkdir -p $(OBJ)
+	$(CC) $(CFLAGS) $< -o $@
+
diff --git a/def/skel/c/bin/.null b/def/skel/c/bin/.null
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/def/skel/c/bin/.null
diff --git a/def/skel/c/config.mk b/def/skel/c/config.mk
new file mode 100644
index 0000000..7a78dd6
--- /dev/null
+++ b/def/skel/c/config.mk
@@ -0,0 +1,16 @@
+# see LICENSE file for license information #
+
+COMPONENTS = main
+
+SRC := src
+INC := inc
+RES := res
+OBJ := obj
+BIN := bin
+
+INSTALL_DIR = /usr/bin
+
+CC = gcc
+CFLAGS = -c -g -Wall -iquote ./$(INC)
+LDFLAGS = 
+
diff --git a/def/skel/c/inc/.null b/def/skel/c/inc/.null
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/def/skel/c/inc/.null
diff --git a/def/skel/c/obj/.null b/def/skel/c/obj/.null
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/def/skel/c/obj/.null
diff --git a/def/skel/c/res/.null b/def/skel/c/res/.null
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/def/skel/c/res/.null
diff --git a/def/skel/c/src/.null b/def/skel/c/src/.null
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/def/skel/c/src/.null
diff --git a/def/skel/c/src/main.c b/def/skel/c/src/main.c
new file mode 100644
index 0000000..494e6d9
--- /dev/null
+++ b/def/skel/c/src/main.c
@@ -0,0 +1,8 @@
+
+#include<stdio.h>
+
+int main(int argc, char *argv[])
+{
+  return 0;
+}
+
diff --git a/def/skel/sh/.null b/def/skel/sh/.null
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/def/skel/sh/.null
diff --git a/def/skel/sh/Makefile b/def/skel/sh/Makefile
new file mode 100644
index 0000000..3f80df5
--- /dev/null
+++ b/def/skel/sh/Makefile
@@ -0,0 +1,33 @@
+## see LICENSE file for licensing information ##
+
+
+INSTALL_DIR = /usr/bin
+SYS_CFG_DIR = /etc
+
+
+
+.PHONY: main install clean uninstall
+
+NAME = mktree
+
+main : bin/$(NAME) bin/$(NAME).1
+
+bin/mktree.1 : doc/mktree.1
+	@awk -f make.awk $< > $@
+
+bin/mktree : src/main.sh
+	@awk -f make.awk $< > $@
+	@chmod +x $@
+
+install : main
+	cp bin/$(NAME) $(INSTALL_DIR)/
+	cp -r def/skel $(SYS_CFG_DIR)/mktree
+
+clean :
+	@rm -f bin/*
+
+uninstall :
+	rm -f $(INSTALL_DIR)/$(NAME)
+	rm -rf $(SYS_CFG_DIR)/mktree
+
+
diff --git a/def/skel/sh/src/main.sh b/def/skel/sh/src/main.sh
new file mode 100644
index 0000000..1a24852
--- /dev/null
+++ b/def/skel/sh/src/main.sh
@@ -0,0 +1 @@
+#!/bin/sh
diff --git a/doc/mktree.1 b/doc/mktree.1
new file mode 100644
index 0000000..eac51f9
--- /dev/null
+++ b/doc/mktree.1
@@ -0,0 +1,62 @@
+.TH MKTREE 1 2026-03-21 mktree-0.0
+
+.SH NAME
+
+mktree - a simple project setup utility
+
+
+.SH SYNOPSYS
+
+.B mktree
+.RI [ options "] <" template "> <" name "> [" args "]..."
+
+.B mktree -f
+.RI < "template path" "> [" options "] <" name "> [" args "]..."
+
+
+.SH DESCRIPTION
+
+.B mktree
+is an extensible tool for quickly setting up new projects using templates.
+Setup hooks can be specified in the .setup.sh file in the template directory
+for more advanced project configuration.
+
+
+.SH OPTIONS
+
+##insert awk -v OUTPUT=man -f args.awk res/args
+
+
+.SH EXIT STATUS
+
+By default, mktree will have an exit code of 0.
+It will return non-zero on error.
+
+
+.SH ENVIRONMENT
+
+.TP
+XDG_CONFIG_HOME
+Path  to  the user-local configuration directory, see “FILES”.  Defaults to
+.IR ~/.config .
+
+.SH FILES
+
+.TP
+.I TEMPLATE_ROOT/.setup.sh
+A shell script that is run in the new project directory after the template
+skeleton is copied. It does not have to be maked as executable.
+
+.TP
+.I $XDG_CONFIG_HOME/mktree/skel
+User-local project templates.
+
+.TP
+.I /etc/mktree/skel
+System-global project templates.
+
+.SH SEE ALSO
+
+cp(1)
+
+
diff --git a/make.awk b/make.awk
new file mode 100644
index 0000000..c6f0b37
--- /dev/null
+++ b/make.awk
@@ -0,0 +1,17 @@
+
+/^##include\s\w+/ {
+  while ((getline line < $2) > 0)
+    print line;
+  close($2);
+  next;
+}
+
+/^##insert\s+\w+/ {
+  sub(/^##insert\s*/, "");
+  if (NF > 0)
+    system($0);
+  next;
+}
+
+// { print }
+
diff --git a/res/args b/res/args
new file mode 100644
index 0000000..ab04d1b
--- /dev/null
+++ b/res/args
@@ -0,0 +1,38 @@
+
+# SYNTAX
+# # comment
+# - option line
+# @ function callback
+# " description
+# blank lines separate entries
+
+
+-h --help
+@ PrintHelp
+" Print this help menu.
+
+-l --list
+@ ListTemplates
+" List the available templates.
+
+-v --verbose
+@ SetVerbose
+" Output more information to stderr.
+" Can be specified multiple times to increase verbosity.
+
+#-t --template-dir DIR
+#" Search for templates in DIR before searching other directories.
+
+-s --system-dir DIR
+@ SetSystemDir
+" Use DIR as the system template directory.
+
+
+-u --user-dir DIR
+@ SetUserDir
+" Use DIR as the user template directory.
+
+-f --format DIR
+@ SetFormatPath
+" Use DIR as the format template for the project.
+
diff --git a/src/args.sh b/src/args.sh
new file mode 100644
index 0000000..25a11db
--- /dev/null
+++ b/src/args.sh
@@ -0,0 +1,79 @@
+
+SHORT_OPTS=""
+LONG_OPTS=""
+for option in $(seq 0 5 $((${#OPTIONS[@]}-1)) )
+do
+  SHORT_OPTS+="${OPTIONS[(${option} + 1)]}${OPTIONS[(${option} + 3)]:+:}"
+  LONG_OPTS+="${OPTIONS[(${option} + 2)]}${OPTIONS[(${option} + 3)]:+:},"
+done
+
+GETOPT_CMD="getopt -n $(basename $0) -o ${SHORT_OPTS} -l ${LONG_OPTS} -- $@"
+
+
+USAGES=(
+  "mktree [options] <format> <name>"
+  "mktree -f <format> [options] <name>"
+)
+
+
+PrintHelp() {
+  leader="Usage: "
+  for usage in "${USAGES[@]}"
+  do
+    echo "${leader}${usage}"
+    leader="  or   "
+  done
+  echo "Options:"
+  for option in $(seq 0 5 $((${#OPTIONS[@]}-1)) )
+  do
+    short="${OPTIONS[(${option} + 1)]}"
+    long="${OPTIONS[(${option} + 2)]}"
+    arg="${OPTIONS[(${option} + 3)]}"
+    desc="${OPTIONS[(${option} + 4)]}"
+
+    printf "  -%-6s --%-16s %-48s\n" \
+      "${short} ${arg}" "${long}${arg:+=${arg}}" "${desc}"
+  done
+}
+
+
+ParseOpts() {
+  while [ $# -gt 0 ]
+  do
+    case $1 in
+      "--") # end of options
+        shift
+        if [ -z "${FMT_PATH}" ]
+        then
+          FMT_PATH=$(GetTemplate $(Unquote $1))
+          [ 0 -ne $? ] && Error "Couldn't find template $1!" && exit 1
+          shift
+        fi
+        PROJECT_NAME=$(Unquote $1)
+        shift
+        [ -z "${PROJECT_NAME}" ] && Error "Project name not specified!\n" && exit 1
+        MakeProject ${FMT_PATH} ${PROJECT_NAME} $@
+        exit $?
+        ;;
+      -*) # options
+        for i in $( seq 0 5 $((${#OPTIONS[@]}-1)) )
+        do
+          callback="${OPTIONS[${i}]}"
+          short="${OPTIONS[(${i} + 1)]}"
+          long="${OPTIONS[(${i} + 2)]}"
+          arg="${OPTIONS[(${i} + 3)]}"
+          desc="${OPTIONS[(${i} + 4)]}"
+          case $1 in
+            "-${short}" | "--${long}")
+              eval "${callback}" "${arg:+$2}" || exit $?
+              [ -n "${arg}" ] && shift # extra shift if the option takes an arg
+              break
+              ;;
+          esac
+        done
+        ;;
+    esac
+    shift
+  done
+}
+
diff --git a/src/main.sh b/src/main.sh
new file mode 100644
index 0000000..1b38eab
--- /dev/null
+++ b/src/main.sh
@@ -0,0 +1,111 @@
+#!/bin/sh
+
+##########################################
+##              { mktree }              ##
+##   Copyright(C) 2026  Maxwell Mahn    ##
+## see LICENSE file for license details ##
+## - -- - -- - -- - -- - -- - -- - -- - ##
+## just a shell script for automating   ##
+## the creation of repetative directory ##
+## structures. (like everytime you want ##
+## to start a new project; now you can  ##
+## eliminate the setup time; surely     ##
+## you'll finish the project this time) ##
+##########################################
+
+
+# default program configuration
+SETUP_SCRIPT=".setup.sh"
+
+cfg_dir="${MKTREE_CONFIGDIR:-${HOME}/.config/mktree}"
+
+USER_TEMPLATES="$cfg_dir/skel"
+SYSTEM_TEMPLATES="/etc/mktree/skel"
+
+##include src/util.sh
+
+
+GetTemplate() {
+  [ -z "$1" ] && return 1
+  
+  for prefix in "${CUSTOM_TEMPLATES}" "${USER_TEMPLATES}" "${SYSTEM_TEMPLATES}"
+  do
+    [ -z "${prefix}" ] && continue
+    temp_path="${prefix}/$1"
+    Debug 2 "Checking template path '${temp_path}'..."
+    [ -d "${temp_path}" ] && echo "${temp_path}" && return 0
+  done
+  return 1
+}
+
+
+MakeProject() { # format_path, project_name
+  [ -z "$1" ] && Error "Project format not defined!" && return 1
+  [ -z "$2" ] && Error "Project name not defined!" && return 1
+  
+  [ -d "$2" ] && Error "Can't make project in $2. Directory already exists." && return 1
+  
+  # copy skeleton
+  Debug 1 "Copying template skeleton..."
+  cp -r "$1" "./$2" && cd "./$2"
+  
+  # run hooks
+  Debug 1 "Running setup hooks..."
+  shift 2
+  setup="./${SETUP_SCRIPT}"
+  [ -f "${setup}" ] && sh "${setup}" $@
+  
+  if [ $? -eq 0 ]
+  then
+    Debug 2 "Removing setup script..."
+    rm -f "${setup}"
+  else
+    Error "Failed to run setup hooks!"
+  fi
+  
+  Debug 1 "Done."
+  return 0
+}
+
+
+ListTemplates() {
+  [ -d ${USER_TEMPLATES} ] && echo "User Templates:" && \
+    for template in ${USER_TEMPLATES}/*
+  do
+    echo "  $(basename ${template})"
+  done
+  [ -d ${SYSTEM_TEMPLATES} ] && echo "System Templates:" && \
+    for template in ${SYSTEM_TEMPLATES}/*
+  do
+    echo "  $(basename ${template})"
+  done
+  exit 0
+}
+
+
+SetSystemDir() {
+  [ -d "$1" ] && SYSTEM_TEMPLATES="$1" return 0 || return 1;
+}
+
+SetUserDir() {
+  [ -d "$1" ] && USER_TEMPLATES="$1" return 0 || return 1;
+}
+
+SetFormatPath() {
+  [ -d "$1" ] && FMT_PATH="$1" return 0 || return 1;
+}
+
+SetVerbose() {
+  VERBOSITY+=1
+}
+
+
+##insert awk -v OUTPUT=shell -f args.awk res/args
+
+##include src/args.sh
+
+
+# parsing options
+options=$(${GETOPT_CMD}) && ParseOpts ${options} \
+  || Error "Run '$(basename $0) -h' for usage information." && exit 1
+
diff --git a/src/util.sh b/src/util.sh
new file mode 100644
index 0000000..f190a82
--- /dev/null
+++ b/src/util.sh
@@ -0,0 +1,15 @@
+
+Error() {
+  echo "$@" 1>&2
+}
+
+Unquote() {
+  out=${1#\'}
+  echo "${out%\'}"
+}
+
+VERBOSITY=0
+Debug() {
+  [ $1 -le $VERBOSITY ] && shift && echo "$@" >&2
+}
+