It’s a viable option for sure, just more of a pain than say, not having to do that :
Sure, it’s the kind of thing to keep in your back pocket and perhaps use if you run out of space. :-) I was just looking for a fun October jam and honestly probably wanted to build something “more pico-8 like”… but Chip-8 + XO-Chip actually can get you closer than you might think if you just turn on “ludicrous mode” and accept the palette limitations. :-)
Plus I’ve always been terrible at music/audio and that’s less a problem on Chip-8 since it’s so limited. :-)