FYI in case anyone were wondering: Meta uses Hack, not PHP. (Hack's packaging, documentation, and availability suck because there's no performance review "impact" to making things better that no one inside Meta sees. Plus, there's job security in knowledge hoarding.) Licensing: Meta and Google[1], and likely Microsoft, Apple, and most other megacorps explicitly forbid any use of AGPL software because it cannot be pro…
In other words, if you're an open source startup and want to avoid being AWS'd, choose dual AGPL + commercial (with IP transfer CLAs).
Can you please explain how this model works?