so yeah thanks Frederik for the help on the led matrix code im waiting for this to turn up and put together but this will help route between all of the analog modules on the gameboy megamachine. it also has an input so the matrix can actually change sequentially.
rene said I could share the ms20 filter kicad schematic. so here it is, the video for this one will be next week! and up on the Patreon the pcbs panels if you wanted a kosmo 2.0 sized performance filter :-
https://www.dropbox.com/sh/3h77w8bka4qrhp9/AAB0eDyydj3rn7L_2KWP6rGza?dl=0
as for the electric druid vclfo10 its cool check it out!
https://electricdruid.net/product/vclfo-10/