Looking to selfhost a family Minecraft server for my kids and nephews. Got it running on an old media server box but it keeps crashing due to not enough RAM, even with just one test player. I was hoping to unveil it as a Christmas surprise until I hit this wall. Anyone have a ballpark for what processing and RAM a small server like this will need?

You might need to tune the jvm params for memory if you think you have enough but it’s still crashing.
good to know, if it comes to that, but it seems like I did not have enough memory
Ah haha I see now that you want to run mods. Like someone else said you’re gonna need a lot more RAM for that. When I ran ATM (same modpack as the other user) I found that 16GB was the minimum for a big modpack. Lots of people say you can run with less, but I never really had luck with it.