Looking for a live streaming software (that I can host myself)

Hey guys,
I am currently looking for a software/script that allows me to livestream from my laptop screen or from my mobile phone camera

Does any of you know any software/script (open source or not, doesn't matter)? It is important that I can host it on my own server instead of using a third party service that hosts and provides the service for me.

Any advice for me?

https://github.com/Red5/red5-server
It works, but its kind of crappy to use and setup last time I did it.

Thanks. Any other suggestions?

A good streaming software would be OBS (open source)

https://obsproject.com/

It is almost guaranteed, it won't run on a Phone.

Oh OK.
I was looking for a solution that has like a server side and a client side. The server side receives from the client side who is real time filming with his camera.

I think meerkat is something like that isnt it?