Is your feature request related to a problem? Please describe.

Currently https://cython.readthedocs.io/en/latest/src/userguide/debugging.html says "installation process is a bit complicated" and points to a repository that says…

UPDATE: Unmaintained und half-broken

This depends on Python2 and is therefore half-broken.
I don't want to repair anything that involes Python2, so I stopped maintaining it.

Doesn't look good.

But, in several operating systems (e.g. Arch Linux?) there's already a cygdb executable available by default. Maybe something can be mentioned to that effect (although I haven't tried it out)

Describe the solution you'd like.

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Describe alternatives you've considered.

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Additional context

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