Host Your Own Matrix + Element on a Server (Without Losing Your Weekend)

Why Matrix, why now? Matrix is an open protocol for real-time messaging. The two pieces you’ll run are: Synapse (the Matrix homeserver): users, rooms, federation, auth, storage. Element (the client): the web app people actually use to chat. You can absolutely self-host this. You can also absolutely spend a weekend in TLS/DNS/Reverse-proxy purgatory if you’re not careful. Let’s do it the sane way. What you’ll set up A VPS/server with Linux A domain, with: matrix.example.com → Synapse element.example.com → Element (web) Nginx as reverse proxy Let’s Encrypt TLS certificates Synapse running in Docker This tutorial assumes: Ubuntu 22.04+ You have SSH access and a domain name Step 0: Pick your domain + DNS You need two DNS records: A/AAAA record: matrix.example.com → your server IP A/AAAA record: element.example.com → your server IP Give DNS a minute to propagate. Step 1: Install prerequisites sudo apt update sudo apt install -y docker.io docker-compose-plugin nginx certbot python3-certbot-n