MIT license, CC0 spec, self-hosted, no telemetry, no "open core" bait-and-switch, no usage meter phoning home, there is nothing to phone home to. The business model is being so useful to serious teams that they want more of our time.
everything, no asterisks
for teams deploying now
honest status: not sold yet
Why trust a free tool? The spec is public domain and your runs are portable OAR files, if we vanish tomorrow, your data, your audit trail, and your ability to run the MIT code lose nothing. That's deliberate: infrastructure you can't be held hostage by is the product.