Macintosh Programmers Workshop had some tools but we mostly did it by hand so we tended to work on different parts of the program. If that was a problem our manager who owned the company would do a road trip to collect the new code that another person needed (we all lived in the Bay Area.) He had a big financial incentive to do so. Or we would get together, but that was not optimal.

https://en.wikipedia.org/wiki/Macintosh_Programmer%27s_Works...