Description:
First thing: Nice that more wayland related projects find their way into the repos :)

But I noticed some odd things while getting rid of my custom packages and installing the repo packages for greetd and greetd-tuigreet.
Firstly greetd-tuigreet requires greetd but is also required by greetd via the meta dep greetd-greeter. But afair greetd-tuigreet doesn't need greetd for building the package. And this wasn't a mistake by an AUR PKGBUILD, because I built those packages in a clean environment and the packages worked. Didn't check the other greeters, but I assume this is similar for those.

Secondly: agreet is split from the greetd source into a separate package. It provides greetd-greeter but is also added as an explicit dep to greetd. So greetd-agreet will be installed everytime. Even if one has changed the default config and doesn't require it anymore. If this should ensure to work with the default config it shouldn't be split. And if it should be a separate/optional option, then it should be entirely optional even if this results in a broken default.

Personally I liked the optdepends approach from the AUR version, although I see the appeal of the meta dep. On the other hand, the greeters aren't needed for compiling greetd...
Dunno what is the best solution, but I think the current approach is kinda suboptimal?