[lmartel]

Assuming it's an entirely separate venture, sure.

But from the OP it sounds like the cofounder might be continuing in the same line of business, but wants to "pivot" and jettison the now-dead weight of the technologist.

If this is the case it seems plausible that his contributions and R&D are still relevant, even if they're throwing out his code, and so perhaps he's entitled to whatever stake he vested over those first two years.

[creyes]

This makes sense to me. If it's entirely unrelated then yeah totally. But if they're doing a shopify store to sell these workshops then I think OP should get some points