This repository contains a monolithic Bash script (`sing-box.sh`) that automates the deployment, configuration, and management of the sing-box proxy server on Linux VPS. It supports 12+ proxy protocols (Reality, Hysteria2, TUIC, ShadowTLS, Shadowsocks, Trojan, VMess/VLess over WebSocket, H2/gRPC Reality, AnyTLS, NaiveProxy) and integrates Cloudflare Argo Tunnel for CDN-based inbound. The script handles end-to-end setup: dependency installation, self-signed certificate generation, sing-box binary download, JSON configuration generation for each protocol, firewall rule management (iptables/UFW/firewalld), and creation of systemd/OpenRC service files. It also generates subscription links for multiple clients (Clash, V2rayN, ShadowRocket, Throne, sing-box) and provides a menu-driven interface for post-install modifications (port changes, CDN switching, protocol add/remove, WARP account management). The architecture is a single large Bash script with modular functions, heavy use of global variables, and runtime dependency fetching. While functional and actively maintained, the codebase is tightly coupled and not designed for reuse outside its specific deployment context.