If you don’t have server access to the old installation, no. You can probably transfer everything, but you have to check for every app how to export and import data via webgui. I know it works for calendar, contacs and probably more but I don’t know about the rest. So it’ll likely work but it’s not exactly straightforward.

Cool guide, I’ll keep it in mind when setting up my own Lemmy, even though I won’t go through cloudflare. Some things I noticed:

• Since I didn’t see you mentioning it, ufw (idk about gufw) doesn’t actually block the ports opened by docker. Make sure to only forward your docker ports to localhost and only make the actual webservice available (e.g. 127.0.0.1:8888:8080 for piefed adminer), otherwise the ports will be accessible from your LAN
• In your update process, you can docker compose pull before docker compose down, makes a little difference especially on a slow connection/big images. I think you don’t even need the down command since docker does that automatically if something changes (e.g. new build)

Sounds interesting, thanks!

I’m not really up to date on homelabbing hardware, but I’m surprised to see how much the whole thing is centered around raspis given how expensive they are for their relatively low capacities. Possibility of offgriding your homelab is an interesting project but not what I’d center this “revolution” around given most homelabs stay, well, home.

DIY 10" racks for second hand mini PCs would interest me way more but looking at the YouTuber’s big lab racks affordability doesn’t seem to be much of a factor.