Are there any gotchyas to running a Lemmy Instance?

I stood up a Yunohost and installed Mastodon a few months back. I had issues with storage and exponential growth as a result of federating with other instances.

It was just too much work keeping the storage at a minimal level for a single user instance, so I ditched it.

Is there anything like that I need to consider before I try my hand at Lemmy?