> You build your static "hello world" binary, you place them in the destination folder, you fill in the metadata to specify dependencies and stuff like your name and email address, and you proceed to zip up the package.

this small "fill in the metadata" part is already half-an-afternoon of reading and understanding all the concepts and mandatory files in there: https://www.debian.org/doc/manuals/maint-guide/dreq.en.html ... and that's only one small part of the manual.

Arch packages in comparison can be a single 15-20 lines PKGBUILD shell script.