Streaming media from a android mobile device to debian computer

I have media on my phone, that I want to stream to my debian laptop wirelessly. This media includes books, movies and music.

I want some way to stream this media directly to my laptop, without having to transfer any kind of files to the laptop local storage, and I need it wireless.

I know that stuff like Jellyfin and plex exists, but plex is paid, and jellyfin cannot create a sever on mobiles.

what are my options ? also, it would be really nice if you could also give me a simple guide on how to setup and use your recommended solution.