Is it my imagination, or is the source in the repository mostly missing or at best incomplete?

The 1.19.2 branch should be up to date I think

Lmk if it isn't

Yea that all makes sense, but that's just the quality of the codebase being shit. This mod doesn't do a lot.

I checked against my local clone and the remote 1.19.2 branch is up to date. Building should work.

It doesn't appear to be, to me. The main java file is only 90 lines and appears to be boiler plate/example code. The src/main/resources directory appears to be missing files shown to have been merged in previously. Does this make sense? :)