http://officer-dev:9000 rather than http://officer-dev.ts.pastilhas.dev:9000. All three forms resolve inside the tailnet — short name, FQDN, raw 100.x — and the short one is what anybody actually types. PUBLIC_URL is read by people too: gen:index bakes it into the page's OpenGraph tags. It depends on the tailnet's search domain, which every Tailscale client sets when MagicDNS is on. A device that has lost it resolves the FQDN instead, and the answer there is to type the longer one rather than to default everybody to it. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>