Just my vote for the path names: apache/nuttx_rtos apache/nuttx_apps Looks safe and self-explanatory :-)
If clone to nuttx_rtos.git/ and nuttx_apps.git/ would be also acceptable that would be perfect (and marked there is a git repo inside). Thank You and Good Luck! :-) -- CeDeROM, SQ7MHZ, http://www.tomek.cedro.info