TBH, all I really want (as a daily driver) is a #forth that runs fully hosted on an MCU, tethered by a high speed serial, with an MCU resident block editor (PC/laptop only used for terminal, not editing or source storage).
Yeah, yeah, I have that with my GreenArrays #GA144 developer's board, but I only have one of those and when it eventually dies I can't afford another.
Oh, and I don't want the Forth to be built on top of Arduino or unwieldy development frameworks (e.g. ESP32 and RP2040, etc). This pretty much rules out my own #toolboxforth ...