Add raku devshell

devshells/raku.nix

@@ -0,0 +1,41 @@
+{ withSystem, inputs, ... }:
+{
+  perSystem =
+    {
+      config,
+      pkgs,
+      lib,
+      inputs',
+      ...
+    }:
+    {
+      devShells.raku =
+        let
+          rakudo_env = pkgs.buildEnv {
+            name = "rakudo-env";
+            paths = with pkgs; [
+              rakudo
+              zef
+            ];
+            pathsToLink = [
+              "/bin"
+              "/lib"
+              "/share"
+            ];
+          };
+          libPackages = with pkgs; [ readline70 ];
+        in
+        pkgs.mkShell {
+          buildInputs =
+            with pkgs;
+            [
+              # Raku toolchain
+              rakudo_env
+            ]
+            ++ libPackages;
+          shellHook = ''
+            export LD_LIBRARY_PATH=${lib.makeLibraryPath libPackages}
+          '';
+        };
+    };
+}

flake.nix

@@ -26,6 +26,7 @@
         ./home-manager/machines/wsl/home.nix
         ./devshells/rust.nix
         ./devshells/idris2.nix
+        ./devshells/raku.nix
       ];
       systems = [
         "x86_64-linux"