It’s easiest to just register a domain name and use Couldflare Tunnels. No need to worry about dynamic DNS, port forwarding etc. Plus, you have the security advantages of DDoS protection and firewall (WAF). Finally, you get portability - you can change your ISP, router or even move your entire lab into the cloud if you wanted to, and you won’t need to change a single thing.

I have a lab set up on my mini PC that I often take to work with me, and it works the same regardless of whether it’s going thru my work’s restricted proxy or the NAT at home. Zero config required on the network side.

This shouldn’t even be a question lol. Even if you aren’t worried about theft, encryption has a nice bonus: you don’t have to worry about secure erasing your drives when you want to get rid of them. I mean, sure it’s not that big of a deal to wipe a drive, but sometimes you’re unable to do so - for instance, the drive could fail and you may not be able to do the wipe. So you end up getting rid of the drive as-is, but an opportunist could get a hold of that drive and attempt to repair it and recover your data. Or maybe the drive fails, but it’s still under warranty and you want to RMA it - with encryption on, you don’t have to worry about some random accessing your data.

Or just disable image uploads completely. We got by on Reddit without any built-in image hosting functionality for over a decade, so Lemmy should be fine without it as well - especially considering that we don’t really have many image-heavy communities, besides the NSFW instances. I mean, storage costs money you know, and with Lemmy being run by volunteers, it makes even more sense to get rid of image hosting to save costs.