Switching to mSATA boot

As mentioned by @Pepe here Bricked Omnia. How is it even possible, and how should one proceed in such a situation?:
Turris omnia can now boot from mSATA.
Will the Turris team provide any software to automate switching from internal storage to mSATA?
I am aware of the armbian nand-sata-install that provides this functionality.