Honestly, I wouldn't.

I only run it this way because a VPS had 0 WAF, and I'm terrified of opening ports. VPS is the well trodden ground, there's tonnes of guides. Mine's a hack job borne of necessity, it works though, and I am proud of what I cobbled together.

It was my first time solving my own problems. I had my meager skill set, a basic idea of what I wanted, some vague notion of how I was going to achieve it, and a thick forehead to smash against the problem till it gave way for me.

I am going to keep running it this way though. To access my server you need to HAVE a relay rPi, and you need to KNOW a password. That's two authentication factors right there, just built in.