Media Card - Spotify - How to hide sources?

Hi

I’m using the media card with the Spotify integration and I would like to hide specific sources showing from the drop down source selection option to make it easier for my partner to use. I’ve Googled a lot and also read the following, but can’t find the solution.

I’ve also tried forgetting the device within Spotify itself, but it keeps showing up again in Spotify and of course the media card source list.

I’ve also tried a this custom lovelace card, but it hasn’t been updated for quite some time and you can’t save any changes to the card now GitHub - custom-cards/spotify-card: Spotify playlist card for Home Assistant card

Any solution how to customise the home assistant media card to show specific Spotify sources only?