flake.nix: add weeder, cabal-plan, hpc.

1 files changed, 3 insertions, 0 deletions

diff --git a/flake.nix b/flake.nix
index f35bea84b..a95d3b877 100644
--- a/flake.nix
+++ b/flake.nix
@@ -45,6 +45,9 @@
             haskellPackages.haskell-language-server # you must build it with your ghc to work
             haskellPackages.hlint
             haskellPackages.cabal-install
+            haskellPackages.cabal-plan
+            haskellPackages.weeder
+            haskellPackages.hpc
             haskellPackages.ghcid
             zlib
             git