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I haven't heard of NuttX before.

How did it come about? Was it developed from scratch or released from an existing project?

It’s quite old, developed from scratch by a single guy 20 years ago. It never reached mainstream popularity.

In my opinion NuttX is like a secret weapon. RTOS, good hardware support for many boards and CPUs, and a very high performance TCP/IP stack that can be interrupted by hard realtime tasks.

It's also growing in popularity now– I would say it hasn't reached mainstream popularity yet. :)

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