VocProc is an LV2 plugin for pitch shifting (with or without formant correction),
automatic pitch correction, and harmonizing of singing voices.
Lilv is a library for LV2 hosts intended to make using LV2 Plugins as simple as possible without sacrificing capabilities.
Suil is a library for LV2 hosts intended to make using LV2 plugin UIs as
as simple as possible, including support for hosting a UI in any supported
toolkit in a host written in another supported toolkit.
A news reader.
A mutt patch that adds a sidebar showing all mail folders.