[sonicrocketman]

Direct from the mouth of the other half of the team:

We used Xstate over react-router by using a parallel machine:

- One for application state - One for view state

We had to hack the innards of the events a bit to get the two machines to communicate. This allowed the view to re-render the jsonschema form at the exact right time, and not flicker on multiple state transitions.

In hindsight, graphql wasn’t as necessary as we initially thought. The important part was storing the mutation as a string as an xstate transition parameter. We used federation, so it did help us deal with multiple backends.

All database. Versions were handled by having a core machine that pulled the kiosk’s workflow from the server and ran it as a submachine. So the code on the device (core machine) could switch sub machine workflows on the fly between runs.