I agree, and all the more reason we should ensure that our project has a controlled snapshot of this tool -- and to ensure the longevity of that snapshot so that it will not be lost suddenly!
There is also a snapshot of genromfs in the tools repository. This is a snapshot of the tool from the time I wrote the ROMFS file system. People have been using "willy-nilly" versions of genromfs, I believe. However, so far that has not caused any problems.
There is other interesting stuff in the tools directory that people are not well aware of. For example, nxfuse:
A Linux FUSE implementation that enables native mounting of NuttX filesystems in Linux. Currently supports SmartFS and NXFFS (within the limitations of the NXFFS architecture). See the nxfuse/README.txt file for further information.
