libsigrok is a shared C library which provides basic hardware access drivers for logic analyzers, oscilloscopes, MSOs, multimeters, dataloggers, and more. It also provides input/output file format support.
libsigrokdecode is a shared C library that provides (streaming) protocol decoding functionality. The protocol decoders are written in Python (>= 3.0).
LibGit2Sharp brings all the might and speed of libgit2, a native Git implementation, to the managed world of .Net and Mono.
A command line tool to output your database schema and data in diff-able form.
A reservation system for PCs.