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+++ b/README.md
@@ -26,6 +26,40 @@ make
 [sudo] make install
 ```
 
+The requirements are Perl with dependencies:
+- [p5-Git-Raw]: Perl bindings to [libgit2];
+- [Mustache::Simple]: template library for generating output files;
+- [CommonMark][cm-p]: [CommonMark][cm-spec] renderer.
+
+[p5-Git-Raw]: https://github.com/jacquesg/p5-Git-Raw/
+[libgit2]: https://libgit2.org/
+[Mustache::Simple]: https://metacpan.org/pod/Mustache::Simple
+[cm-p]: https://metacpan.org/pod/CommonMark
+[cm-spec]: https://commonmark.org/
+
 ## Documentation
 
 Documentation available via installed manpages, also available online: [`gistatic.1`](gistatic.1.html).
+
+## Contributing
+
+Extra tools used for development are:
+- [perltidy] for code formatting;
+- [ShellCheck] for validating scripts;
+- [pandoc] for generating the documentation HTML and website.
+
+[perltidy]: https://metacpan.org/pod/perltidy
+[ShellCheck]: https://www.shellcheck.net/
+[pandoc]: https://pandoc.org/
+
+For running the extra development-only checks, run:
+
+```shell
+$ make dev-check
+```
+
+and for generating the documentation HTML and website, run:
+
+```shell
+$ make public
+```