snapdroid VS ZXing

It's all done with Mopidy + Snapcast. Mopidy has various frontends, but the Iris web frontend supports Snapcast and can be controlled from any web-capable device; it can be used to assign/change device groups, assign certain streams to certain groups (you can have multiple sources playing on multiple devices/groups and control them from there), etc. I also used the Snapdroid app, which will allow you to adjust things like latency, individual device volumes and stream volumes, etc on your phone or tablet. Beyond that, you can integrate Home Assistant and pretty much get it to act however you want, including being fully controlled via voice on both Google and Amazon (and ultimately Cortana, ick) platforms. Of course that takes some setting up that some wouldn't consider "easy", so YMMV.

* Server running mopidy [1] with all your audio loaded up on it and connected to Spotify.

* Install the Iris plugin for UI [2] on server

* Install snapcast [3] server on the audio server and snapcast client on raspberry pi's near all stereos you want to pipe audio into

* Put bookmarks to the Iris page on all family member's phone home screens.

* Add the snapdroid app [4] to each phone so people can adjust volume of each stereo and also play audio on their phone (or anything it's bluetoothed into)

[1] https://mopidy.com/

[2] https://mopidy.com/ext/iris/

[3] https://github.com/badaix/snapcast

[4] https://github.com/badaix/snapdroid

The Snapdroid app for Android is pretty basic. AFAIK there still isn't a UI for iOS.

The biggest difference between the two plugins is the SDK used to recognise the barcodes. The Capacitor Community Barcode Scanner plugin currently uses the ZXing decoder and the Capacitor ML Kit Barcode Scanning plugin uses the ML Kit from Google.

This is using Excel, but it is still VBA, https://www.youtube.com/watch?v=NIFjw8z__dI they're utilizing a third-party library called ZXing which is available on GitHub https://github.com/zxing/zxing

I'm sure it works, but thezxing github project appears in maintenance mode, so I'm not sure i should use it in a new project

PyXing (website here) is supposedly a Python port of the popular Java ZXing library, but the initial and only commit is 6 years old and the project has no readme or documentation whatsoever.