He claimed he DMed the admins. I can’t see any public post about it.

That’s it! If you don’t specify a host path, i.e. the path before the colon, Docker will create an volume which saves any changes you make to that path in the container, but won’t mount any existing path from the host to the container.

What is the frequency indicator on the right side of your system panel?

The developer has just announced that Relay will continue to function and will switch to a subscription model, so there probably won’t be a Relay for Lemmy, unfortunately :(

Tailscale and Netmaker use wireguard under the hood, so as long as you manage to establish the connections, they should be just as fast! If you need to use relaying, however, that will introduce additional overhead.

I’ve tried from networks outside my home and I can access the server from there. Looking at a traceroute, I stop getting anything somewhere between my ISP and the datacenter the server is in.

I do this, too. I haven’t tried Tailscale, but Netmaker wasn’t able to deal with my CGNAT without a relay node, and I found that to be hit-and-miss.