Can someone write an idiot-proof guide to self-hosting wefwef?

So here's my situation:

• I'm hosting my own lemmy instance on.syrma.cc @ Hetzner VPS
• I'm trying to set up Wefwef for myself on app.syrma.cc
• I intend to lock Wefwef down so that only my instance can be accessed with it

Would someone be so kind and provide a step-by-step guide on how to achieve this? I don't have a lot of experience with selfhosting, but I'm able to use Google like a pro! I would only need some specific instructions for Wefwef itself, anything else I can google/trial & error myself.

I assume it goes like this:

1. Clone repo
2. Change configs
3. Build and start docker
4. Use letsencrypt for a cert and add it to nginx's config
5. Point A record app.syrma.cc to MYIP/wefwef

And then I go through 1-3 for any updates?

Thanks in advance, your help is appreciated!