[pydry]

Between 30 seconds and about 45 minutes.

The only times when it was long enough that it was painful it was because there was a stage that couldn't be debugged without running the build. That's invariably what I actually preferred to fix, not the total lead time.

A 45 minute sanity check to verify nothing is fucked before releasing is fine. A 45 minute debugging feedback loop is a nightmare.

Faster CI builds are typically a nice-to-have rather than a critical improvement (& doing too many nice to haves has killed many a project).