However, the license of nspire_emu (rather, the lack thereof) allows anybody to fork it, without providing the sources of the fork, without contributing modifications back to upstream, without trying to work with upstream, or anything.Ī possible reason for that state of fact (I don't know) is that Goplat assumed that people would be good citizens and would care about the community, so a license that forbids closed-source derivatives would be superfluous. If nspire_emu were licensed under a license that forbids closed-source derivatives, indeed, SpiroH's forks should be taken down.