Sounds like an USA issue, it's quite popular in Europe afaik. Part time developers are generally a niche (mostly by choice, people want to get full time pay),

Sounds like an USA issue, it's quite popular in Europe afaik. Part time developers are generally a niche (mostly by choice, people want to get full time pay), but I know plenty of people who work 3 days per week and many more who work 4 days per week. They mostly do it for work-life balance and to pay less taxes in some backward southern European countries where tax don't make sense (eg. in one country you can make the same money post tax whether you earn 65k or 90k, so contractors try to work up to the 65k limit and work less days). Likewise you can find consultant roles for N days per week relatively easily.