[jeroenhd]

And Javascript doesn't need semicolons in all but three exceptional cases, but I still consider it good form to strongly type values whenever possible.

Getting in the habit of not doing so will lead to schema violations, like the Netplan problem you linked, which can crash the program trying to read your config. If it bails out at an unfortunate time, like most networking tools seem to do, you'll need to use a recovery boot image or serial console to fix your config.