I see two ways around that: 1. Apply the license restriction to the official binary. The distributor would have to recompile from source to get a binary they c

I see two ways around that: 1. Apply the license restriction to the official binary. The distributor would have to recompile from source to get a binary they can redistribute without restriction. That might stop some low effort redistributors. 2. Trademark the name of the software. The distributor would have to rebrand. That should be a bit more effective.