Debian definitely has packaging docs https://www.debian.org/doc/manuals/debmake-doc/index.en.html https://www.debian.org/doc/manuals/debmake-doc/index.en.html a

Debian definitely has packaging docs https://www.debian.org/doc/manuals/debmake-doc/index.en.html https://www.debian.org/doc/manuals/debmake-doc/index.en.html and it's not that hard to customize an existing package (at least I found it easier than using rpmbuild...).