I was wrong, it’s even easier than I thought. Here is a step-by-step manual if you like: https://www.ifixit.com/Guide/Lenovo+ThinkPad+X220+RAM+Replacement/71889
for this very good effortpost I will award you 1 of my lemmy bucks! Proof will be edited, once the transaction is complete.
Edit: https://feddit.de/post/154711 the transaction has been written in stone on the immutable sub (as long as the mods keep their hands off it)
Maybe you can change it in bios?
https://www.diskpart.com/gpt-mbr/change-legacy-to-uefi-4348i.html
It could be that you need to change the partition on the disk as well, with a special program, like they say in the article above.
You already can install Lemmy with yunohost: https://github.com/YunoHost-Apps/lemmy_ynh . The app could use some love though.
Sadly this is how hosting these kinds of services works at the moment. There is no way the devs can change this. If it helps you it’s not actually that hard, like @dessalines@lemmy.ml already said there are many step by step tutorials that will be great introductions into the world of system administration.
Digging basements is really expensive!