Earlier quoted context omitted.
My issue with those APT on Debian is that I almost always have to add another PPA to download a version of something that I actually want to use. That reduces the utility of APT in my view. Having a crowdsourced list of Homebrew packages to install would be fabulous.
Not only that, but a lot of those PPAs become stale, or get replaced by others, and it's only when you upgrade the dist, that you get failures and discover this... It's pretty annoying. It would be nice to have a meta package manager for "current" PPAs for given projects that wraps apt with brew-like ability.
(a) Use the upload form for Launchpad.net [0]
(b) Host your own deb server [1]
Unless you use Bazaar for a VCS, the only time you login to Launchpad is to upload a new release. With Homebrew it's built into git with adding a new tag. A _LOT_ lower barrier to entry here.
[0]: https://help.launchpad.net/Projects/FileDownloads#Publishing...
[1]: https://www.unixmen.com/setup-local-apt-repository-using-ins...