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+<!--
+Copyright (C) 2023 - 2024:
+The Trinitrix Project <soispha@vhack.eu, antifallobst@systemausfall.org>
+SPDX-License-Identifier: LGPL-3.0-or-later
+
+This file is part of the Trixy crate for Trinitrix.
+
+Trixy is free software: you can redistribute it and/or modify
+it under the terms of the Lesser 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
+and the Lesser GNU General Public License along with this program.
+If not, see <https://www.gnu.org/licenses/>.
+-->
+
+# Trixy
+
+A crate to generate a multi-language foreign function interface.
+
+## Features
+
+- Support for custom types, derived from a set of [primitive types](./src/types/mod.rs).
+- Support for callbacks, thought c function pointers.
+- Support for error handling, when checking a functions arguments (NULL pointer and such things).
+
+## Supported languages:
+
+- c
+
+## Dependencies
+
+Trixy only needs:
+
+- `clang-format` to format the generated c header files.
+
+## The Trixy Language
+
+The API to generate is specified in a Trixy file. The language of these files is an subset
+of rust and should thus be easy to learn and pick up.
+
+A grammar file is provided [here](./docs/grammar.ebnf) encoded in [Extended Backus-Naur Form](https://en.wikipedia.org/wiki/Extended_Backus%E2%80%93Naur_form).
+The grammar file is rendered as railroad diagrams in PDF [here](./docs/grammar.pdf), run [`./docs/generate_docs`](./docs/generate_docs.sh) to regenerate the PDF file.
+
+## Testing
+
+Trixy contains integration tests in the `./tests` directory. These are maintained with the
+`./scripts/tests.sh` script. Take a look at it's `--help` output for further usage
+information.
+
+Tests are (as of now) only positive, i.e. they can only test successful situations.
+Failing test will probably be supported in the future.
+
+## Contributing
+
+We have a [nix flake](./flake.nix), which provides the required dependencies to work with Trixy and the associated scripts in the `./scripts` directory.
+
+Please also make sure to run the `./scripts/renew_copyright_header.sh` after you added a new file, to ensure that every file contains a license header.