I have a self hosted server running yunohost that I use for a few services for my own use all of which require login to use so they're safe enough. However I'm increasingly uncomfortable with the fact that anyone can discover my home IP via my domain name. Especially if I decided to install something like Lemmy or Mastodon. Yunohost installs dyndns as part of it's setup but, aside from buying a fixed IP from a VPN provider that allows incoming connections I'm not sure what other options I have I can't change very much on the modem router either. I can forward ports but that's about it. I can add and manage new domains if necessary. Any and all ideas welcome but, as you can guess from the fact I'm using yunohost, my networking knowledge is limited so please eli5 :)

I'm looking at the [official docs](https://github.com/LemmyNet/lemmy-ansible) but I'm a bit confused. I want to install Lemmy on a VPS but the fourth bullet point in the documentation says: "Install Ansible on your local machine (do not install it on your destination server)." And then the Install instructions start going about how to install it. If Ansible is on my local machine how am I supposed to use it to install Lemmy on a VPS?

I'm not familiar enough with Ansible or Docker to really risk installing Lemmy straight onto the VPS so I'm thinking of putting Yunohost on it. If I chose the Hetzner Cloud package with 8GB RAM and 80Gb space, realistically, how many users could sign up before things got dangerous. Hetzner is fine with yunohost installs and the hardware specs are good for it, I'm just wondering about Lemmy capacity in terms of numbers of users. I realise you'd only be able to guesstimate a ballpark figure. Also, one way to cut down on space use is apparently object storage. I know I can use Backblaze for this - how exactly is this configured? Is there a setting in the lemmy config to point to external object storage providers?