nginx/matrix.conf

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

    # For the federation port
    listen 8448 http2 ssl default_server;
    listen [::]:8448 http2 ssl default_server;

    server_name chat.exozy.me;

    ssl_certificate /etc/letsencrypt/live/exozy.me/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/exozy.me/privkey.pem;

    location ~* ^(\/_matrix|\/_synapse\/client) {
        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 50M;
    }
}