Not sure if it's standard practice when using Business Source License, but seems to have additional terms too, like:
> BSL features are free to use and the source code is available, but users may not use ArcticDB for production use or for a Database Service, without agreement with Man Group Operations Limited. [...] Use of ArcticDB in production or for a Database Service requires a paid for license from Man Group Operations Limited
So not just "source available, go ahead and use it" but basically "free for personal use only".
> Free as long as you aren't a competitor, or you use ArcticDB for anything we could consider "in production"
This is how I understand their text, and I wouldn't be super excited about trying to figure out exactly what "in production" means with their lawyers in court.
Yeah that’s fair, not open source, I was incorrect, though I think it’s more than personal use only. “Production use only” is doing a lot of heavy lifting and I don’t know exactly what that means (though could make a guess).
> BSL features are free to use and the source code is available, but users may not use ArcticDB for production use or for a Database Service, without agreement with Man Group Operations Limited. [...] Use of ArcticDB in production or for a Database Service requires a paid for license from Man Group Operations Limited
So not just "source available, go ahead and use it" but basically "free for personal use only".