To be fair, it doesn't seem to be mentioning this until the "Purpose-built on Compute Module 5" section which is more than halfway through the entire landing page, I was similarly lost until I got to that section and actually understood what I was looking at :)
Looks really fleshed out and fun though, now I just need to get my hands on a proper carrier board it seems, as the audio out of the box for standard CM5 development I/O board is kind of horrible.
They clearly missed that part where I said I'm on mobile. That half a page is a lot longer on a smaller screen. Also I still want to see a picture or video of this running on actual hardware!
Oh, yeah I actually missed that fully, that it expects a USB-connection. Would be a lot of fun and I could find a lot of uses for something like this in my DAWless setup, but with audio-over-USB there isn't much I could do at the moment, but since it's Linux, just changing the output (once I have a new carrier board...) shouldn't be so hard. Thanks for sharing it :)
For the DAW-less use case, I actually prototyped this with a DAC hat before deciding to go the Overbridge route. I might resurrect that support some day...
Rest assured, if you click the "READ THE MANUAL" button on the landing page you will see screenshots of all synth engines and configuration screens.
The repo's README also starts with a screenshot.
Thanks.