Lampone Pi It is a modification of the popular RaspbianOS for the Raspberry Pi. An operating system with some features inherited from Raspbian and with some changes that make it interesting for other applications, and that will only be distributed in Live mode. In fact, it is the only OS for this SBC that is distributed like this at the moment.
This project makes an image available to you to download and use in Live mode so you don't have those problems that Raspbian sometimes has, like when it updates and stops working, etc. In addition, it was necessary to install on the SD for it to work, or use NOOBS to have several systems, but still installed on the card.
Therefore, now from your Raspberry Pi you can also use a Live on your Pi thanks to this project based on Debian 10 in its port for the ARM64 architecture. Sort of a namesake for Raspbian Lite, but for 64-bit.
Its developers have made an effort to create a unique partitioning scheme designed to maximize robustness against data corruption. An FS (File System), or format, ISO9660 is used like that of optical discs which is read-only. And on your persistent data partition you will only have the delta, that is, system updates and user data. But everything mounted on the read-only system to make it more robust.
Evidently can't use a Live USB, as in other teams (without making some changes). The Raspberry Pi has its limitations in terms of boot firmware, so it only recognizes operating systems installed on the SD card. What is certain is that you can burn the image with the usual methods, such as practical and simple Etcher app that you usually use for other systems.