Open Usherr on a phone and keep it on the home screen, like an app.
In Chrome, tap the ⋮ menu, then Add to Home screen (or Install app). Usherr now opens like an app, full screen.
Usherr stays on your home network. To use it when you’re out, install Tailscale on the phone and sign in to the same Tailscale account as this computer: it then works anywhere, still private.
Your stack, votes and diary are the same there: it’s your account.