Warning: The install command is a part of the legacy v1 style of cabal usage.

Please switch to using either the new project style and the new-install
command or the legacy v1-install alias as new-style projects will become the
default in the next version of cabal-install. Please file a bug if you cannot
replicate a working v1- use case with the new-style commands.

For more information, see: https://wiki.haskell.org/Cabal/NewBuild

Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] next goal: termonad (user goal)
[__0] rejecting: termonad-1.1.0.0 (conflict: pkg-config package vte-2.91-any,
not found in the pkg-config database)
[__0] rejecting: termonad-1.0.1.0, termonad-1.0.0.0, termonad-0.2.1.0,
termonad-0.2.0.0, termonad-0.1.0.0 (constraint from user target requires
==1.1.0.0)
[__0] fail (backjumping, conflict set: termonad)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: termonad