3x-ui-vpn-skill

Deploy and manage 3X-UI on a root-managed Ubuntu or Debian VPS using Docker Compose, nginx, ACME certificates, SSH panel tunneling, UFW hardening, and Xray VLESS over XHTTP behind nginx. Use when the user explicitly wants to install 3X-UI from scratch, lock the panel and subscription server to 127.0.0.1, open an SSH tunnel to the panel, create or repair a VLESS inbound behind nginx on public 443, add extra clients to an existing inbound, or run safe OS and container updates.