with (import {}); let pandoc-linear-table = haskellPackages.callCabal2nix "pandoc-linear-table" /home/amy/github/pandoc-linear-table {}; pandoc-logic-proof = haskellPackages.callCabal2nix "pandoc-logic-proof" /home/amy/github/pandoc-logic-proof {}; pandoc-columns = haskellPackages.callCabal2nix "pandoc-columns" /home/amy/github/pandoc-columns {}; in mkShell { buildInputs = [ pandoc pandoc-linear-table pandoc-logic-proof pandoc-columns ]; }