Resolving dependencies...
Error: cabal: Could not resolve dependencies:
[__0] next goal: gi-gtk4 (user goal)
[__0] rejecting: gi-gtk4-4.0.12 (conflict: pkg-config package gtk4-any, not
found in the pkg-config database)
[__0] fail (backjumping, conflict set: gi-gtk4)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: gi-gtk4