I have four Jetson Nano (B01) boards, the version that came with 32G of onboard storage, no sd card slot. I was hoping to boot from NVME. The flashing instructions had me confused I was reading "Orin NX/Nano" to mean "Nano", not "Orin Nano", so moving down the the "Nano (B01)" section on flashing, its just use sdkmanager, but sdkmanager does not seem to be able to write to the NVME. It never has that option.

The Jetson Nano does support (boot from) NVMe. It's the configuration I use: https://discord.com/channels/754950670175436841/1144995119481770036

Sorry. I was tired when I wrote the, now deleted, response. The onboard, eMMC is too small to hold much other than Jetson Linux.