I stream on twitch using OBS, to play music i use Cmus, I would like to have a "now playing" overlay in my stream that shows info about the current track Cmus is playing.

OBS have a function which allows you to display a text as overlay while you are streaming, it could be a static text o a text from a file.

I found a script called cmus-status-line which prints to the terminal information about the currently playing track from Cmus(artist, track, etc). My issue is I don't know how to integrate the output from cmus-status-line with OBS, I guess a rough way would be to create a script that prints the output of cmus-statu-line to a file every x seconds, but I guess there are better ways.

would a desktop notification suffice?
Something like that.

Hello Ondoho, thank you for the help.

Maybe I didn't explain myself well enough, when I said that I would like a "now playing" overlay I was just referring to the display music feature that streamers usually have, and not literary a "now playing" text along with the cmus status line.

The way I see it I would need a script or plugin that somehow communicates with cmus so that every time there is a change in the track played the script can change its output too, then I can print that output in a file and use that file to display its text in obs. The cmus-status-line script only prints the current track being played and as far as I know it doesn't have any functionality beyond that.

Do you know if there is a plugin with such functionality? or maybe there is a better way to achieve this?

A desktop notification is an "overlay" and if you're streaming your desktop it should be visible.
Not sure what else you could be refering to.
A plugin for OBS? Have you asked on OBS community channels?