AGPL. I don’t necessarily like it but it ensures that if someone else commercially hosts it (ie a competitor), they have to open their changes upstream too. 

GPLv2 gives you the mysql problem - Amazon alone probably makes more from RDS than all the mysql providers combined. 

Ironic is MongoDB was AGPL and found it wasn’t strong enough, so went for non OSI approved SSPL. They figured this was cheaper than going to court, I guess. AGPL is still disliked at Google (and many other firms) - they just won’t touch such tools. 

Don’t go for Business Source License (ie time delayed opensource). It’s effectively like saying only abandonware is OSS.

incredible alpha on the TL about open source licensing from someone whose actually gone through this stuff themselves making important shit, pretty fucking cool ngl