Resolving dependencies...
Error: cabal: Could not resolve dependencies:
[__0] next goal: abstractly-keyed-implicits (user goal)
[__0] rejecting: abstractly-keyed-implicits-0.1.0.0 (conflict: requires
unknown language GHC2024; did you mean GHC2021?)
[__0] fail (backjumping, conflict set: abstractly-keyed-implicits)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: abstractly-keyed-implicits