server {
  listen 80;
  server_name {btcpayserver.my.domain};

  # Let's Encrypt verification requests
  location ^~ /.well-known/acme-challenge/ {
    allow all;
    root /var/lib/letsencrypt/;
    default_type "text/plain";
    try_files $uri =404;
  }

  # Redirect everything else to https
  location / {
    return 301 https://$server_name$request_uri;
  }
}
server {
    listen 443 ssl http2;
    
    ssl on;
    
    # Replace {btcpayserver.my.domain} with your domain
    server_name {btcpayserver.mydomain.com};
    ssl_certificate /etc/letsencrypt/live/{btcpayserver.mydomain.com}/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/{btcpayserver.mydomain.com}/privkey.pem;
    
    # Disable SSL and old TLS versions
    ssl_protocols TLSv1.2 TLSv1.3;
  
    # Use Diffie-Hellman (DH) key exchange parameters
    ssl_dhparam /etc/ssl/certs/dhparam.pem;
  
    # Proxy requests to BTCPayServer on Umbrel
    location / {
      # URL of BTCPay Server 
      proxy_pass {umbrel-tailscale-ip:port};
      proxy_set_header Host $http_host;
      proxy_set_header X-Forwarded-Proto $scheme;
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header Upgrade $http_upgrade;
    }
}