Here is a list of all topics with brief descriptions:

Actions	User action implementations
DSP	DSP (audio/MIDI signal processing) code
Events
General	Uncategorized
GUI Backend	Serializable structs that define how the GUI should behave
LV2	LV2 plugin related code
Plugins	Audio plugin handling
Project	Project initialization, saving and loading
Tests	Testing helpers
Utilities	Various utilities
Widgets	Custom GUI elements that reflect the backend
Dialogs
Io
Settings