switch modules/outputs names

nix/snow/flake/outputs/devShells.nix

@@ -0,0 +1,35 @@
+{
+  lib,
+  snow,
+  ...
+}: let
+  inherit
+    (lib)
+    mkOption
+    types
+    literalExpression
+    ;
+  inherit
+    (snow.lib)
+    mkPerSystemFlakeOutput
+    ;
+in
+  mkPerSystemFlakeOutput {
+    name = "devShells";
+    option = mkOption {
+      type = types.lazyAttrsOf types.package;
+      default = {};
+      description = ''
+        An attribute set of packages to be used as shells.
+        [`nix develop .#<name>`](https://nixos.org/manual/nix/stable/command-ref/new-cli/nix3-develop.html) will run `devShells.<name>`.
+      '';
+      example = literalExpression ''
+        {
+          default = pkgs.mkShell {
+            nativeBuildInputs = with pkgs; [ wget bat cargo ];
+          };
+        }
+      '';
+    };
+    file = ./devShells.nix;
+  }