Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] trying: taffybar-1.0.2 (user goal)
[__1] next goal: gi-gdkx11 (dependency of taffybar)
[__1] rejecting: gi-gdkx11-3.0.2, gi-gdkx11-3.0.1 (conflict: pkg-config
package gdk-x11-3.0>=3.22, not found in the pkg-config database)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: taffybar, gi-gdkx11