How about some actual installation instructions?

[mark761]

Like, what do I do after I git clone?

[hoehermann]

After git clone, you give up. This project has been unmaintained for a while now, see #518. It needs a fresh start after Meta pushed end-to-end-encryption.

[yllekz]

You are more than half a decade too late unfortunately. Facebook effectively disallowed external clients. This plugin worked great back in the day, but due to matters out of the maintainers' control, this likely won't ever work again.