This category contains in-depth articles written to explain various parts of the source code. Minor annotations are written inline in the source file articles themselves.
Annotations vs DevelopmentEdit
If an article could be written in a non-NetHack context, it probably belong in Category:Development. Examples: grep, OpenBSD. If an article only makes sense in a NetHack context, it probably belongs here. Examples: Des-file format, Dungeon.def format.