idk, I think project estimates are the hard part.

that'll take a few weeks

two days later

nevermind I'm done

or

that shouldn't take more than a few days

3 months later

whew, finally finished

but you can put all of your frequently used functions in it, and make it open source so that the community can enjoy and enhance it for you! you'll save so much time having everything you need for development in one package that you can effortlessly import with a single command using your favorite package management tool(s)!