you can use that little plastic punchdown tool they give you with keystone jacks to push in your dupont connectors
this will not help you not forget to put the heat shrink on first
@gloriouscow meanwhile, I'd like to find the person who designed the Dupont crimping tool and slay them.
@640KB i eventually just threw the manual away and watched a youtube video and was like "oh, okay, so that's how it works."