With a Mod layer and One Shot Mods (OSMs), I do something similar, but also much more basic with my Small Board 4 Dvorak (SB4DV) layout: <a href="https://github.com/1MachineElf/qmk_firmware/tree/_sb4dv/keyboards/planck/keymaps/sb4dv" rel="nofollow">https://github.com/1MachineElf/qmk_firmware/tree/_sb4dv/keyb...</a><p>I don't go much beyond the mod layer and OSMs because the necessary precision required for a lot of the tapping features can become tedious, sometimes frustrating.