Self Hosted Elixir: A Pi is all you need!
summary
Shows how a home Raspberry Pi actually runs an Elixir/Phoenix app with realtime websockets, using Raspberry Pi 4 (4GB, 1.8GHz) and Raspberry OS Lite, exposed safely via Cloudflare Tunnel so no router ports need opening, and deployed with Coolify PaaS with Docker and Caddy for Git-driven pushes and automatic builds. Demo updates state across many browser tabs via Phoenix LiveSockets, claims high concurrency with minimal cost (~$100 hardware, negligible electricity), and notes IPv6/ISP quirks, limited CPU and no global redundancy.
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