Main doesn't leak anymore

flake.nix

@@ -4,12 +4,21 @@
   inputs.flake-utils.url = "github:numtide/flake-utils";
   inputs.generic_c.url = "github:Maix0/generic_c";
 
-  outputs = { self, nixpkgs, flake-utils, generic_c }:
-    flake-utils.lib.eachDefaultSystem (system:
-      let pkgs = nixpkgs.legacyPackages.${system}; in
-      {
+  outputs = {
+    self,
+    nixpkgs,
+    flake-utils,
+    generic_c,
+  }:
+    flake-utils.lib.eachDefaultSystem (
+      system: let
+        pkgs = nixpkgs.legacyPackages.${system};
+      in {
         devShell = pkgs.mkShell {
           packages = with pkgs; [clang valgrind gnumake readline.out readline.dev generic_c.packages.${system}.default];
+          shellHook = ''
+            alias 'valgrind'='valgrind --supressions=${./valgrind_readline_leaks_ignore.txt}';
+          '';
         };
       }
     );