Gladly - I don’t think the differences are substantial, seems mostly to be config specific to the screen parameters. Would be happy to help test.
Yes, issues is where we are talking currently, though we have started a sub on Reddit too for those who are not on GitHub and want to share suggestions, bugs, app requests /r/CobaltForKobo
Current priority is a stable SDK, support for oauth and token for adding apps like Dropbox, read later ones etc. and a larger app ecosystem eventually.