Atoms VS mprweb

Yes, check out Atoms. Its on flathub as well.

you can install distrobox rootless https://github.com/89luca89/distrobox with atoms (manages distrobox containers) https://github.com/AtomsDevs/Atoms and you will not need to disable read only ever again.

Plus, well, there's already pacstall and makedeb for Ubuntu-based and Debian-based, as well as the option of using distrobox, junest, and eventually Atoms to just get a portable Arch environment or just using Conty if you only want a few specific things.

Go star the GitHub repository now!!

Debian has the MPR https://mpr.makedeb.org/

https://mpr.makedeb.org/ this is the link.

I know the MPR is a thing, but I've always found it unwieldy to use.

So the main difference from something like MPR is that it does that same thing, but for more packages, not only .deb files?

Regarding system repositores, it's generally best to avoid tampering with system repositories like this because it'll cause problems with release upgrades down the line. But if you really want to, look into https://mpr.makedeb.org/ with the expectation that a release upgrade with these packages installed will most likely fail.

makedeb - Like makepkg, but produces installable *.deb files. There are already lots of packages in the MPR

Actually exists! https://mpr.makedeb.org/

Mist is powered by the MPR, an AUR-like repository that's also for Debian and Ubuntu based systems (of which I'm also the project lead for, as well as the makedeb project listed below). In short, it uses pretty much the same PKGBUILD format that you'd see on Arch Linux, but uses them to build .deb packages instead of Arch Linux packages.