nginx/synapse.conf

server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;

    server_name chat.exozy.me;

    include conf.d/ssl;

    location / {
        proxy_pass http://localhost:8008;
        proxy_set_header X-Forwarded-For $remote_addr;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header Host $host;

        # Nginx by default only allows file uploads up to 1M in size
        # Increase client_max_body_size to match max_upload_size defined in homeserver.yaml
        client_max_body_size 1G;

        # Stop access_log spam
        access_log off;
    }
}