A quick suggestion: would you mind going into the itch backend and checking the "for linux" box for your pc builds? (so it would be checked for both windows and linux). If you do that, then I can use the itch app to auto-update when you release a new build :) Right now the itch app won't launch a new dawn because none of the builds are marked as linux compatible, but the "pc" renpy builds are compatible with both windows and linux.
thanks :))