I meant the default keymap from the keyboard's own config repo, but building from unmodified Miryoku ZMK main might be worth trying too if you can't find anything else. Good luck!
Nice! I assume the 10u version uses the same schematic as the 12u, just dropping the outer pinkie columns? In that case you can use the 12u firmware unmodified.
You could test with the default keymap, check your soldering for shorts, and try USB logging.
Great!
Here's a sample workflow build run: https://github.com/manna-harbour/miryoku_qmk/actions/runs/5650295293.
cheapino is using the split_3x5_3 layout that Miryoku QMK already supports, but cheapino doesn't have community layout support enabled, so it won't be used. If /u/Tompi@discuss.tchncs.de fixes that you'll be able to build by merging branches and building for cheepino. You can merge the cheepino branch automatically at build time by using tompi/qmk_firmware/cheapino with the Miryoku QMK build workflow branches option.
