> looking at their SDKs, it doesn't feel on same level of quality.
Interesting. The usual feedback is the opposite. For example, DBOS Python works both sync and async, Temporal only async.
> Also, not fully open-source:
This is not correct, everything you need for durable execution with DBOS is open source (and MIT licensed, unlike Temporal). It's open source the same way Spark is -- everything you need is open source, but you can buy services to make it easier to run and buy support.