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README.md

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+# Programming tasks for ECG
+
+This repository includes my solutions to the tasks
+for the module [*Einführung in die Computergraphik* (Introduction to computer graphics)](https://tu-dresden.de/ing/informatik/smt/cgv/studium/lehrveranstaltungen/ss2023/ecg)
+in the summer semester 2023 at the [TU Dresden](https://tu-dresden.de/).
+
+Each exercise includes a separate `readme.txt`
+that describes things specific to how I implemented the task.
+However, those documents are in German, which is a requirement.
+
+## Usage
+
+### Build
+
+To build a specific exercise,
+you can use [Nix](https://nixos.org/) with flake support:
+
+```bash
+nix build -L .#u01
+```
+
+You can also manually invoke CMake.
+This requires you to have all dependencies installed.
+Because this is not my preferred way, there is no canonical list of dependencies,
+but you can find them in `flake.nix`.
+
+### Development
+
+You can use `nix develop` or [`direnv`](https://direnv.net/).
+
+## Licence
+
+[GPL-3.0-or-later](https://spdx.org/licenses/GPL-3.0-or-later.html).
+See [COPYING](./COPYING) and [gpl-3.0.txt](./gpl-3.0.txt) for details.