Keymaps

Build

nix build .#firmware.<keyboard>

Multi-part keyboards (skeletyl, cygnus) produce one .uf2 per part (dongle, left, right); a single part builds with nix build .#firmware.<keyboard>.<part>.

Flash

Flash every part in sequence:

nix run .#flash.<keyboard>

Flash a single part (only that part's firmware is built):

nix run .#flash.<keyboard>.<part>
# or
nix run .#flash.<keyboard> -- <part>...

Update dependencies

West dependencies are pinned in nix/west.lock. After editing config/west.yml (or to pick up new commits on the tracked branches):

nix run .#update

then commit config/west.yml and nix/west.lock together. A stale lock fails the build at evaluation time with a message pointing back here.