What I have done is pretty weak to be honest Guide : OpenVPN Access to Home Assistant
I found myself just copying the Digital Ocean guide (which was the one I followed) - then stopping and just linking to it in the end - but to be honest was more than adequate and well written.
I was wondering if people wanted to have a go at setting it up using those guides and I’d be happy to answer questions / support any issues people might run into as best I can.