Replace outdated XTool with 3x-setup in the One Click section

[Anthrop44]

Summary

Replace the outdated XTool entry (not updated for 3 years) with 3x-setup, a secure-by-default, Nushell-based deployment and management solution for Xray-core.

It automates a modern Xray-core best-practice architecture, combining direct VLESS + XHTTP + TLS with Cloudflare-proxied VLESS Encryption + XTLS Vision + XHTTP.

Features

• Secure by default: Enforces SSH key-only authentication, restrictive firewall rules with Cloudflare-only origin access, and localhost-only management interfaces accessible through SSH tunneling.
• Resilient deployment: Remote initialization continues independently after SSH disconnects, with detailed per-stage logs and verification.
• Easy configuration and maintenance: Schema-validated JSON configuration, one-command client/CDN configuration synchronization, and persistent subscription URLs across server rebuilds.
• Fully automated: Handles Caddy camouflage, Xray inbounds, 3X-UI clients, TLS certificate issuance and renewal, and end-to-end connectivity checks.

I've been developing this for months and will keep maintaining. Should be reliable enough. I'll never accept any sponsorship for it too.