This is super cool. After seeing the Ben Eater videos and marvelling at just how much results the 90s era DOOM games etc. managed to get out of super limited hardware, it makes me want to purposefully program my applications for super limited devices like the 6502 or RPI Pico or a 386-based PC.

But it's a tug of war between desire to have the option to run my programs on such ancient hardware (which will be blazing fast on modern hardware! I say to myself) and my desire to use familiar toolkits and try for cross-platform gains where I can get them (build the codebase once and just throw it and a crappy front end on my phones and my windows PCs and my linux PCs too and my .... etc.)

so something that bridges the modern workflows I admire like BDD comprehensive test suites but targets old school hardware like the 6502 is catnip for me.