Just published a ZIP installable release:
Download the ZIP and install by IntelliJ’s action “Install Plugin from Disk…”
You need to assign shortcuts to the actions “Run elm-review” + “Elm Build Project”… toolbars are still missing the build-icon
This is not a production-ready release I’d say, but I do think it should be stable and shouldn’t have broken any previous functionality. And don’t forget to try out Lamdera 
Any feedback welcome.
Since it is not clear, if this will (ever) land in the forked-from repo, I have not setup any Plugin-publication for the IJ marketplace yet.