OpenEmbedded "poky" with some sysmocom specific modifications. Mostly used only up to sysmocom release 201310, but the "pyro" branch is still used for 201705
Now reading the command it should probably be add.nwp or
rem.wp but so is life. We can add an alias for add.nwp in a
future version. The boot, recovery and fwup command have been
changed to issue nand rem.nwp before touching the flash.