Make Spotifyd Work

I followed this guide:

To install the spotifyd so i can get Spotify TUI to work, but the last command does absolutely nothing when i type it into the terminal. I'm not sure what i did wrong and can't make a lot of sense out of their website.

Any help would be appreciated.

There was also someone with the same issue saying that he "I got it working! I think what finally solved it was putting the spotifyd binary into ~/.cargo/bin/" but i can't make out what he did.

Edit: I've been reading the comments. The issue is that spotify TUI works just fine, but it can't find the playback device. Ergo spotifyd is needed, but i can't figure out how to run it.