Thonk is now making their own modules!
Here’s the first, a very narrow, but full featured, oscillator/LFO.
Sounds great, and allows you to pull the four waveforms (sine, square, triangle, and saw) off at the same time.
Very easy build, would make a good first kit. Inexpensive too, at this writing (Nov 1, 2024) it’s only 65 pounds.
Build