I think many package managers take longer than a week to figure out. RPM is more difficult that deb, setuptools takes months to understand it fully and is chang

I think many package managers take longer than a week to figure out. RPM is more difficult that deb, setuptools takes months to understand it fully and is changing constantly. Meson, Conan, winget+msi, and the hundreds of other mixtures of build system + package manager also take long to understand. And you have to understand each of them. Homebrew does not even want package authors to create packages themselves. It may be a matter of perception: If you count all web searches, interactions with CI, conference talks that help you understand a more recent package manager, it will also add up to 5 days. Creating a deb is more boring, it's just the machine and you.