This keymap is to test the soldering work of workshop participants. It can also be used as a simple base for a macropad keymap.
// ┌────────┬────────┬────────┐
1 , 2 , 3 ,
// ├────────┼────────┼────────┼────────┼
4 , 5 , 6 , 7 ,
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8 , 9 , 0
// └────────┴────────┴────────┘