I think this is now ok to merge. It is only missing a merged espruino/EspruinoAppLoaderCore#61 and the update of core to pull the change into this repo.

Thanks - I've merged #3410 which brings in those app loader core changes. Will leave to @gfwilliams to approve with this being a reasonably central change.

Unrelated / for another time, but I wonder whether we attempt to run the app tests as part of CI, wdyt?

This looks great - thanks for your work on it!

Unrelated / for another time, but I wonder whether we attempt to run the app tests as part of CI, wdyt?

I think that would be great. Don't know if we would hit some github limits when we get to a substantial amount of tests, but generally that should be a good idea.

Yes, I think at some point it'd be great to enable these. At least when it's just a few apps it's not going to be a huge amount of extra CPU use.