All-Pedal designs and manufactures guitar pedals. My fantasy about a guitar pedal is that it works like a Pultec EQ with both cut and boost at the same frequencies the way the Pultecs do.
DIYRE does a Pultec-style 500-series but one of their prototypes was in a stompbox-type enclosure. There are lots of Pultec-style eq's out there and quite a few schematics. I think that whatever transformers one might use would likely have the greatest impact on the sound.
Descript does transcriptions.
Groovesetter is for real-time remote music collaborations.
I should turn the Pandora Machine Wiki into a book on low-budget filmmaking.
I made a super-simple oscillator.
Guitar Pedal Parts also designs and manufactures pedals.