https://github.com/abstracthat/dactyl-manuform

2022
https://ohkeycaps.com/products/built-to-order-dactyl-manuform-keyboard
https://www.avito.ru/moskva/tovary_dlya_kompyutera/mehanicheskaya_klaviatura_dactyl_manuform_hendmeyd_2098725828
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SeniorSoftwareVlogger - The Most Ergonomic Dactyl Manuform Keyboard Review of 20:17
    https://www.youtube.com/watch?v=0WZVc_8Bk54

Kinesis Advantage360 Split 
https://kinesis-ergo.com/keyboards/advantage360/
https://drop.com/buy/kinesis-advantage360-split-ortho-ergonomic-keyboard