Hosting a Minecraft Server on a Raspberry PI

I do not have any server racks/external cooling equipment though.
(Can 3d print if it is very neccesary).

one thing i'd recommend immediately is some RPi 5 Active coolers, though you probably won't need them if the room has like a fan or functional A/C (btw this message is being written on an RPi 4B, so welcome to the world of Raspberry Pi). For the backends, I would have them run each on their own RPi, then have velocity use that, make sure ports are forwarded, and for geyser make sure you are up to date, older RPiOS builds don't have Java 17, I'm using bookworm (12), and it works fine. since you have the extra RPi's, i would host geyser on its own if you're doing standalone. also be sure to set up nginx. As for actual setting up, I'm not the guy to ask.

I'm not sure that geyser runs on arm, I haven't tested that yet, but i can try later today

also RPi only takes around five volts anyway, so pretty good for a server

also if you want, you could set up like advanced portals and build a hub world, with portals to go to the different backends

also, do you have an OS installed on them?

you're going to want an os

its sort of a requirement

I think, I'll choose ubuntu, since most of it will be easier to configure for it.

I'll probably use citizens plugin to move players across servers, as well a deluxehub menus to navigate the servers in the lobby

use the RPi imager for that

As well as command listeners for the proxy that listen to /lobby or /hub

it gives you the right build of ubuntu

that'll be good

best of luck with server hosting

also

geysermc works

ty!

btw, the hosting is working already, but to cut costs, I'm switching over from a server rental to hosting it on my own hardware.

that's what i did

albeit im hosting on one RPi 4B

but it works well so your server will work great

also if any of your plugins use sqlite-jdbc.jar, you'll likely need to supply it with an armhf native (or aarch64, they'll both work), since most auto download with x64 native

i assume youre using geyser standalone because you want to set up geyser connect?