Why does it need to contain an actual ARM processor?
Need to? It doesn't. Why might users care? Well, the kinds of people who are into custom keyboards often use custom firmware too... while this keyboard advertises QMK support, if I don't like QMK and want to use something else, which chips are inside matters. Making this even more concrete, I am in the market for some new keyboards, and at least one of them is one I'd like to write my own firmware for. Rust is far mo…
Meet the Ferris keeb that was just recently developed. Currently built using QMK but will eventually have Rust firmware. https://github.com/pierrechevalier83/ferris