We validated the ability to extend Experience Builder with the xb_test_extension module, but this was achieved with proof of concept in mind and not necessarily how we intend to make these capabilities available long-term.
We should probably figure out what functionality should be offered, how to implement it, how to ensure it remains stable + provide good docs so the community can take advantage of these capabilities.
Active
0.0
Extensions API
Untagging "stable blocker", because XB 1.0.0 does not require a public extensions API. That can come in future minor 1.x releases. The goal of XB 1.0.0 is to get it into people's hands for building and deploying real websites with it, and they don't need to extend the XB UI to do that.