You may be interested in:

• My webpage https://michelemartone.github.io/
• The Fbi IMproved (FIM) image viewer: https://www.nongnu.org/fbi-improved/ for X, the Linux Framebuffer and Ascii Art (repo is public but elsewhere, though (see above page))
• The LIBRSB Sparse BLAS-type library and sparsersb for GNU Octave: https://librsb.sf.net/ (repo is also elsewhere)
• PyRSB, a Python wrapper for LIBRSB: https://github.com/michelemartone/pyrsb
• The mimoch.sh modulefiles checker: https://github.com/michelemartone/mimoch
• The Coccinelle Semantic Patching refactoring tool: https://github.com/coccinelle