That's very disappointing. While I don't begrudge Cognitect money, it's obviously possible to make money with an OSS database and I wish they'd gone that route. It's my opinion that your database is the #1 most important part of your stack to be open, as your data is the most important thing.
I've been considering trying to get up to speed with Mentat[0], which is a Mozilla project to create a Datomic-like layer over SQLite for desktop applications, and help out with that or even try to start a full open source clone of Datomic, though probably won't happen for a good while due to real life happening.
It's got so many good ideas and it sucks to see them go to waste in a proprietary database where basically nobody gets to use them.
I've been considering trying to get up to speed with Mentat[0], which is a Mozilla project to create a Datomic-like layer over SQLite for desktop applications, and help out with that or even try to start a full open source clone of Datomic, though probably won't happen for a good while due to real life happening.
It's got so many good ideas and it sucks to see them go to waste in a proprietary database where basically nobody gets to use them.
[0]: https://github.com/mozilla/mentat