PX4Flow which firmware to install?

I want to use a PX4 Flow module with AC 3.6.
I find two different repros on the web:

  1. the PX4 git for the Flow module
    https://github.com/PX4/Flow?files=1
    which seems to be regularly updated, and

  2. the git from @priseborough which is referenced in the Arducopter wiki, but which is not maintained since 2014. Also the links to the dev documentation and toolchain are broken.
    https://github.com/priseborough/px4flow/tree/master

So, what should I use?
Thanks!

The ArduPilot documentation identifies that specific firmware intentionally. It’s the correct one for use with ArduPilot.
Can you raise an issue or PR for the broken links?
Thanks

Thanks, James. Done.