base: Tailscale Serve configured base: real Tailscale HTTPS GET /.well-known/t3/environment returned HTTP 200, serverVersion 0.1.9, databaseMigration 85 head: Tailscale Serve configured head: real Tailscale HTTPS GET /.well-known/t3/environment returned HTTP 200, serverVersion 0.1.9, databaseMigration 85 base UI: Enable network access aria-checked=false; Only this machine can connect. head UI: Enable network access aria-checked=true; Remote access is already configured. head GET /api/auth/session: auth.policy=loopback-browser Base and head stable screenshot pairs: ImageMagick AE=0. head occupied-Serve run: Tailscale Serve left off; its port already serves another server or app. head occupied-Serve UI: Enable network access aria-checked=false; Only this machine can connect. Captures are identical crops of the Network access row; private environment label omitted. Both use localhost:6453, light theme, 1280x800 CSS viewport, device scale 2. AI-assisted; verified with the tests and tools listed above.