libewa

ICANN can (theoretically) not force anyone to deregister your domain. If your stack is all outside the US, and everyone collectively decided to disobey the US, the Internet’s decentralization would be true.

The hard part about building a decentralized network is finding out where to hide the centralization.

For the Internet, the centralization is hidden in the IP block and DNS Zone delegation. After this is done, that region is decentralized. A/I’s problem was that the registry for .org is a subsidiary of IANA. With EU servers, EU DNS and a EU domain, EU clients cannot be prevented from connecting solely from the outside. The US would need a collaborator.

You are free to implement any filesystem driver, and either load it in your custom implementation of EFI, or from an EFI image stored on a FAT partition. The EfiFs project provides many drivers under a GPL, including exFAT, Btrfs, ext2-4, NTFS, ISO9660 (cdfs), ZFS and also HFS(+).

iBoot is the bootloader on all Apple products.

UEFI doesn’t forbid you from implementing additional file systems, it just requires everyone to support UEFI-FAT. iBoot for example supports booting from HFS volumes.