Isn’t nuttx supposed to be the Apache RTOS? rtos/nuttx rtos/apps ?
The are other Apache RTOSs, or at OSs. There is, at least, https://mynewt.apache.org/
MyNewt uses several repositories, one for each major subsystem. Their naming uses hyphens: mynewt-core, mynewt-newt, mynewt-nimble, mynewt-newtmgr, etc.
