Open source multi FX pedal = The OWL

57Deluxe

I hadn't heard of this and a quick search didn't throw it up as discussed here, so bringing it to your attention (again?)

https://hoxtonowl.com/

http://www.rebeltech.org/shop/

hubobulous

I started this thread a little while back, but haven't really followed the product much since:

http://www.thefretboard.co.uk/discussion/19487/hoxton-owl#latest

Sporky

And the DSP stuff is written in C.

That sounds a lot more appealing than Assembler.