@mikelundahl
Define "manage" =)
The simplest solution to what you described - trivial file server: you can upload your mp4 files there and serve (and I think embed) them.
@mikelundahl
Then you indeed need a "proper" video platform.
I don't think there are any specifically for single user, but user management is a tiny overhead.
Also, consider long term usage. I suspect you *will* actually want it to be at least browsable, and probably even searchable.
PeerTube will be a reasonable choice, especially if you are already familiar with it.
Also, might take a look into something like MediaCMS, and it can host images, audio (and pdf, for some reason) too.