Support additional customisation in custom_config.h

[manna-harbour]

• change tapping term
• mods customisation Mods Customisations and Changes #33
• custom clipboard? including Mods Customisations and Changes #33 (comment)
• disable reset, default layer, layer lock? Prevent accidental activation of Additional Features #93
• custom key emulation combos for added and substituted layers
• disable auto shift, including Implement Auto Shift via Tap Hold #36
• Option to Swap Apostrophe and Semicolon #35
• encoder rotations
• also add custom_keymap.c / custom_keymap.dtsi for custom code / behaviours.
• additional custom combos Support additional customisation in custom_config.h #94 (comment) Confusion with custom macros and combos #233 How to add combos to miryoku? #289
• additional custom macros Confusion with custom macros and combos #233 Macros Layer on Double Thumb-Hold (QMK) #290
• additional custom mod-morph / key overrides Adding custom keymap.c code for key overrides #279

[manna-harbour]

@agisga Continuing from #85 (comment).
There's no extra support for custom combos in Miryoku QMK at the moment, but they can be added in manna-harbour_miryoku.c as you've been doing without too much risk of merge conflicts. I may add custom_keymap.c or similar for custom userspace code such as this. But in Miryoku ZMK I've defined macros for the key emulation combos, so something like that in Miryoku ZMK and Miryoku QMK for user combos might help. Or to keep it in custom_config.h only it could be done via X macros in the same way as the layer list.

[nodupe]

Hi, is there still a plan for adding custom_keymap.c? That would be really cool.