@imc67 Ah yes, we used to call this "retire" back in the managed hosting days 🙂 We used to show a page that the server is migrating. Incidentally, I just removed the retire script last night! It's really just systemctl stop docker box but of course these days you will see a "app is down page" instead of a better "migration in progress" page.
I have created https://git.cloudron.io/cloudron/box/-/issues/774 but it won't make it to this release.