Suggest an alternative to

PX4-Autopilot

PX4 Autopilot Software

Why do you think that https://github.com/apache/nuttx is a good alternative to PX4-Autopilot

A URL to the alternative repo (e.g. GitHub, GitLab)

Here you can share your experience with the project you are suggesting or its comparison with PX4-Autopilot. Optional.

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