Get file:

$ wget https://bytesofprogress.net/resources/docker-compose/syncthing/docker-compose.yml

Contents of file: 

services:
    syncthing:
      image: syncthing/syncthing:latest
      container_name: syncthing
      hostname: MY_SYNCTHING_SERVER
      environment:
        - PUID=1000
        - PGID=1000
      volumes:
        - ./syncthing-data:/var/syncthing
      ports:
        - 8384:8384 # Web UI
        - 22000:22000/tcp # Sync protocol (TCP)
        - 22000:22000/udp # Sync protocol (UDP)
        - 21027:21027/udp # Local discovery
      restart: unless-stopped

Additional information: /