diff --git a/rust/flake.nix b/rust/flake.nix
index ea71a22..746a3d8 100644
--- a/rust/flake.nix
+++ b/rust/flake.nix
@@ -48,6 +48,7 @@
           cargo-edit
           cargo-watch
           rust-analyzer
+          evcxr
         ];
 
         shellHook = ''