Lampone Pi is a live Debian GNU/Linux Buster arm64 operating system for the Raspberry Pi microcomputer boards. At the time of writing, it’s the only live operating system for the Pi. Although it is not affiliated or derived from Raspbian, it’s the homologous of Raspbian Lite (they both derive from Debian), but differently it’s a 64bit live OS.
Why this project? If the header image looks familiar to you, you already have the answer : )
So, technically it’s a Debian derivative with a unique partitioning scheme crafted for maximizing the strength against filesystem corruption: the ISO9660 system partition is read-only by design at filesystem-level. The data persistence partition contains only the delta: system updates and your data lay there. The data partition mounted on top of a read-only system partition makes the resulting operating system resistent to filesystem-corruption. Moreover, you can do complete system backups by just tar-ring only the files contained within that partition.