For some pleroma settings to take effect, after changing in admin-FE, pleroma must be restarted. Restart from pleroma is not possible, therefore came up idea to restart pleroma from another loaded application inside the VM, as the simpliest way.
This will remove the need to write the config to a file and manually restart the instance. Related: #1533 (closed)
In the future this behavior can be achieved through umbrella project, with separate application which will manually load settings, start/restart pleroma.
MR needs docs update, that's why marked with WIP tag.