Thanks for getting me pointed in the right direction. With the help of npub16jzr7npgp2a684pasnkhjf9j2e7hc9n0teefskulqmf42cqmt4uqwszk52 blog post about Lightning Address Redirect I was able to get this working with my self hosted BTCPay server.

I threw you 511 as a small token of my appreciation!