You have an old Android phone in a drawer right now. Collecting dust. Worth nothing. Someone built a script that turns it into a full Linux desktop. Or a smart home server. Or a development machine. For free. It's called linux-android. One script. No root required. No flashing. No risk of bricking your device. Run it in Termux and your old phone becomes a Linux computer. Here's what it installs: → Full Linux desktop. XFCE4, LXQt, or MATE. Real windowed desktop on your phone. Connect a monitor and keyboard via USB and it looks like a PC. → Smart home server. Home Assistant runs on your phone. Control your WiFi lights, plugs, and smart devices from any browser on your network. No cloud needed. → GPU acceleration. Snapdragon phones get near-native GPU performance through Turnip Vulkan drivers. Mali GPUs use software fallback. → SSH server. Access your phone from any computer on your WiFi. Full terminal. Transfer files. Write code. All from your laptop keyboard. → Wine support. Run basic Windows applications on your Android phone through Box64 translation. → Audio support. PulseAudio configured automatically. → Works on any Android phone with Termux support. Here's the wildest part: A Raspberry Pi 4 costs $35 to $75. A used mini PC costs $100+. A VPS costs $5/month forever. That old phone in your drawer? It has a faster processor, more RAM, a built-in battery backup, WiFi, and a touchscreen. All for $0. You already own it. A Snapdragon 855 from a 2019 phone still outperforms most entry-level server chips. You're throwing away a computer every time you upgrade your phone. Not anymore. One command. One old phone. A full Linux machine. 100% Open Source. MIT License.