Apache NuttX
7.3#4 in operating systemsFree planFree planAPILinuxmacOSSelf-hosted
VisitApache NuttX suits developers building software for embedded boards and devices, including projects spanning different processor architectures. Its documented simulator targets may also fit development workflows that do not rely solely on physical hardware.
It suits newcomers and experienced Linux users on supported 64-bit x86 or selected ARM devices. Home users and businesses can use the distribution, with professional business services available separately.