1. Taglib RubyRuby interface for the TagLib C++ library, for reading and writing meta-data (tags) of many audio formats
2. Autolink JavaJava library to extract links (URLs, email addresses) from plain text; fast, small and smart
3. Git Merge ReposProgram for merging multiple Git repositories into one, preserving previous history, tags and branches
4. brainztagCommand line tool to tag and rename music albums using MusicBrainz data
5. curlallSimple curl-like CLI tool to automatically page through APIs
6. linkifyRust library to find links such as URLs and email addresses in plain text, handling surrounding punctuation correctly