You can run an Edsu server locally, but I wouldn't. It's meant to be run on an internet-accessible server - a $2.50/month VPS would do, or if you don't want to

You can run an Edsu server locally, but I wouldn't. It's meant to be run on an internet-accessible server - a $2.50/month VPS would do, or if you don't want to run your own there's at least one provider that will do it for you.