I am still :ablobcatsweatsip: ing on Nostr: Mr. Fuzzland Clout Chaser 🗿 gray :grey_cat_roll: you have to: backup your accounts ...

Mr. Fuzzland (npub1tu7…knev) Clout Chaser 🗿 (npub15t4…07eu) gray (npub12h8…mz5h) :grey_cat_roll: (npub1pnp…52zw) you have to:
backup your accounts
Backup your files
Back up your OS itself
Backup your firmware
Physically disassemble the device to enable read/write to the firmware
Create an installer for the custom firmware
Liveboot to install that firmware
And past that install the regular operating system using the new UEFI interface.

It will likely take you a day or two.