I have no clue about how to make a teensy board work with eurorack, but if I'll succed, this is the place where I would have collected my findings (https://intomodular.github.io/intomodular/).
Pinned Loading
Something went wrong, please refresh the page to try again.
If the problem persists, check the GitHub status page or contact support.
If the problem persists, check the GitHub status page or contact support.