Just chiming in to include that hosting a modded Minecraft server is relatively easy as well. You use a modded version like Fabric and put the mods in the mods folder in the MC directory on your host. Users have the same mods in their mods folder and it just works normally. Some mods are server-side only
Oh God I hate flair pens with the intensity of a thousand suns. Once they’ve started to dry out even a little the sound and tactile sensation of writing with them is like nails on a chalkboard to me.