- Git based source control of large projects
- Writing documentation in various formats
- Unix manual pages for programs written in
troff - API documentation for Perl and Lua modules in POD
- User guides created in LibreOffice
- Unix manual pages for programs written in
- Assembly language programming for x86 and 68000 processors
- Unfinished but mostly-functional HTML5 parser written in C
- Multiple open source Lua modules written in a mixture of Lua and C