Comment by debugnik

I really like the EUPL on paper, and I've been told by Joinup's legal support that it should be a valid "change licence" for BUSL, in case I ever want that.

But I'm concerned about the compatibility clauses becoming a loophole for hostile forks. Then again, half the point of the EUPL is admitting that only a court can judge what is or isn't a derivative work (unlike the legal fiction in the GPL's viral clause), so I guess these uncertainties are part of the deal.