ESPHome addon - compiling may run out of memory on a PI4

[alexandrecuer]

I've started using esphome as a home assistant addon on a rapsberry PI4 and after many compilations, I had this kind of error :

The short term solution is to reboot

https://community.home-assistant.io/t/compilation-fails-xtensa-lx106-elf-g-fatal-error-killed-signal-terminated-program-cc1plus/463184/10

The long term solution is to run esphome on another computer. Once your iot network is up, you can close esphome. There is no need to have esphome as a addon. It is too costly.

https://community.home-assistant.io/t/esphome-killing-home-assistant/325939

after the reboot, compilation is successful, but it says :

We found 722.44MB of unnecessary PlatformIO system data (temporary files, unnecessary packages, etc.).
Use `pio system prune --dry-run` to list them or `pio system prune` to save disk space. 

to run this command, connect to the container running esphome and launch the command.

log for a successful compilation