See Templates for project templates. These projects don't follow those templates exactly but there are some similarities.
- Test Golang - test Go language
- Test Perl - test perl language, has the start of a unit tester
- Test Zig - test zig language, has the start of a logger
- Test Dart/Flutter - test dart/flutter language for GUI development
- SWIG - C++ - Use Swig with C/C++ with Python, Ruby, Javascript