Running commands

flake.nix

@@ -11,7 +11,8 @@
     treefmt-nix.url = "github:numtide/treefmt-nix";
   };
 
-  outputs = inputs @ {flake-parts, ...}:
+  outputs =
+    inputs@{ flake-parts, ... }:
     flake-parts.lib.mkFlake { inherit inputs; } {
       imports = [
         # To import a flake module
@@ -29,32 +30,39 @@
         # "aarch64-darwin"
         # "x86_64-darwin"
       ];
-      flake = {
+      perSystem =
-        # The usual flake attributes can be defined here, including system-
+        {
-        # agnostic ones like nixosModule and system-enumerating ones, although
-        # those are more easily expressed in perSystem.
-      };
-      perSystem = {
           config,
           self',
           inputs',
           pkgs,
           system,
           ...
-      }: {
+        }:
+        {
           # Per-system attributes can be defined here. The self' and inputs'
           # module parameters provide easy access to attributes of the same
           # system.
 
           # Equivalent to  inputs'.nixpkgs.legacyPackages.hello;
-        # packages.default = pkgs.hello;
+          packages.default = pkgs.hello;
-        packages.default = config.packages.osds-site;
+
+          pre-commit = {
+            settings.hooks = {
+              mdformat.enable = true;
+              nixfmt-rfc-style.enable = true;
+              prettier.enable = true;
+              prettier.excludes = [
+                ".*\.md"
+                "flake.lock"
+              ];
+              stylish-haskell.enable = true;
+            };
+          };
 
           devshells.default = {
             packages = with pkgs; [
               cowsay
-
-            alejandra
             ];
           };
 
@@ -71,25 +79,23 @@
             };
           };
 
-        pre-commit = {
-          settings.hooks = {
-            alejandra.enable = true;
-            mdformat.enable = true;
-            prettier.enable = true;
-            prettier.excludes = [".*\.md" "flake.lock"];
-            stylish-haskell.enable = true;
-          };
-        };
-
           treefmt = {
             programs = {
-            alejandra.enable = true;
               mdformat.enable = true;
+              nixfmt.enable = true;
+              nixfmt.package = pkgs.nixfmt-rfc-style;
               prettier.enable = true;
               prettier.excludes = [ "*.md" ];
               stylish-haskell.enable = true;
             };
           };
+
+        };
+      flake = {
+        # The usual flake attributes can be defined here, including system-
+        # agnostic ones like nixosModule and system-enumerating ones, although
+        # those are more easily expressed in perSystem.
+
       };
     };
 }