Consider adding meta-gnome-core-developer-tools
I'd like to include Builder in the core apps somehow. Since 3.22, we've considered the core apps to be the set of applications installed by default in GNOME, which excluded Builder since it's a developer tool. But we can easily avoid this problem by just having a new subcategory of core apps for developer tools, not intended to be included by default. That would include Builder for sure, probably pulling in a bunch of deps into core-deps. Other possible candidates would be Devhelp and Sysprof, maybe even Dconf Editor, maybe (stretching it a bit) even Tweaks or Terminal (though I bet users will get upset if there's no Terminal in the default install, so probably not Terminal).
Whatever we include would be built in gnome-build-meta by the release team, and could -- perhaps, hypothetically -- be included in debug images once gnome-build-meta starts producing OS images. But of course they should not be installed by default anywhere else. We could call these meta-gnome-core-developer-tools. It probably doesn't make sense to have a new category for Builder alone, so I'd appreciate feedback on where to draw the line here.
CC: @chergert