Requirements

Before you begin, make sure you have the following.

System Requirements

Requirement	Details
Operating system	Linux -- Ubuntu 22.04+, Debian 12+, or equivalent. Any system that runs Docker will work.
Docker	Docker Engine 24+ with Docker Compose v2 (the docker compose plugin, not the legacy docker-compose binary).
Domain name	A domain you control (e.g., sync.example.com), with the ability to create DNS A records.
Server resources	Minimum 1 GB RAM, 10 GB disk. More is better if you expect multiple users.
Reverse proxy	Caddy, nginx, Traefik, Cloudflare Tunnel, or similar -- for TLS termination.

Verify Docker Is Installed

docker --version         # Should show 24.x or higher
docker compose version   # Should show v2.x

If Docker is not installed, follow the official Docker Engine installation guide.

DNS Setup

Create an A record pointing your chosen domain to your server's public IP.

For example, if your server IP is 203.0.113.50 and your domain is sync.example.com:

Type	Name	Value
A	sync.example.com	203.0.113.50

Verify it resolves before continuing:

dig +short sync.example.com
# Should return: 203.0.113.50

DNS changes can take minutes to hours to propagate. If you're using a reverse proxy with automatic TLS (like Caddy), the domain must resolve before the proxy can obtain a certificate.