Activate M1 MBP without contacting Apple servers

I'd like to have an airgapped M1 macbook, with some form of backup/disk cloning in case of hardware failures. Is there a way I can completely wipe/restore an M1 MacBook Pro without an internet connection? - disk cloning seems very hard, since [several "hidden" partitions don't get cloned](https://eclecticlight.co/2021/05/28/why-cloning-big-sur-isnt-as-useful-for-an-m1-mac/) - in fact, the internal SSD seems to be an integral part of the boot process (based on the above post); it's soldered-on anyway, so if it fails, it sounds like the whole macbook needs to get replaced So without disk cloning, I think I'm stuck with hitting Apple servers to activate the macbook after an OS/disk wipe. - there's some existing investigation into [caching the activation info for the touch bar](https://blog.eriknicolasgomez.com/2016/11/30/the-untouchables-pt-2-offline-touchbar-activation-with-a-purged-disk/) , which might potentially still apply to M1 - Apple Configurator 2 also permits IPSW restores and a DFU mode, which includes T2 (possibly M1) firmware. But that seems to need a connection to Apple servers. - some versions of T2 sound jailbreak-able, which might lead to some way to activate offline, but I don't believe M1 has the same vulnerability.