Here’s what I have done. I run LmS house with 2sbt, one classic and a duo.
Another SBT in kitchen died.
Solution:
1. Continue to Run LMS on a pc or server or nas somewhere in house.
2. Enabke Airplay bridge app plug in on LMS
3. Install squeezepad on iPad
4. Install IPeng on iPhone.
5. Above two devices can now serve as independents mobile FLAC streamers to any LMS or AirPlay device on same network.
Edit. Any BTooth devices can also be streamed to easily with this set up.
The play to and play from permutations are numerous.
The world is moving towards more and more software-defined solutions as sources then middleware, leaving endpoint listening devices not needing wholesale change/update.