You could use distrobox to run an arch container and access the AUR directly.
https://github.com/89luca89/distrobox
It’s what I use for some applications on Kinoite.
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You could use distrobox to run an arch container and access the AUR directly.
https://github.com/89luca89/distrobox
It’s what I use for some applications on Kinoite.
AUR like stuff is simply not for Debian. You are expected to only use software in the official repos.
If you want AUR you should really use Arch Linux or a easier alternative like EndeavourOS.
If you really want AUR (like thing) on Debian I recommend the nix package manager. It will do it's own thing without messing with the host OS.
Take a look at the nix package manager. It is a very large and up-to-date package repo.