Pretty much this. There is a significant learning curve to kubernetes (or similar, I guess?), but it’s a handy skill to be familiar with. If things basically run but with degraded performance on one raspberry, there is no real need for a vertical performance increase. Adding the second will provide almost double capacity, with some HA added for fun.
“The Dumbest Russian Voyage Nobody Talks About” @BlueJayYT
https://youtu.be/yzGqp3R4Mx4?si=9ib5k1rx-2bRJw6P
“The Russian Navy Sucks - Part 1” @HistoryofEverythingChannel
https://youtu.be/D1eJT1Gffas?si=wum5ieZs65KiPVgK