Tajriba is the experiment runtime used by Empirica v2. It handles low-level needs of Empirica (timers, persistence, access controls, synchnization...) behind a GraphQL API.
Tajriba can be imported as a library (as done by Empirica CLI), or can run
standalone with the included tajriba command (see cmds/tajriba).
A simple tajriba.js client library can be found in lib/tajriba