Monsgeek M1W v3 VIA

https://www.monsgeek.com/product/m1w-via/
Web page has the Via config, and the qmk source code.

Note

VIA only works if you load in the json file first

[[M1W_V3_VIA_V3 (1).json]]
https://github.com/MonsGeek/qmk_firmware/tree/wireless/keyboards/monsgeek/m1w