Add post about .NET 9 and nixpkgs (#25)

hugo/content/posts/2024-11-28-net9-aot.md

@@ -0,0 +1,28 @@
+---
+lastmod: "2024-11-28T20:10:00.0000000+00:00"
+author: patrick
+categories:
+- philosophy
+date: "2024-11-28T20:10:00.0000000+00:00"
+title: NativeAOT in .NET 9 and Nixpkgs/darwin
+summary: "How to get a NativeAOT build using nixpkgs"
+---
+
+When nixpkgs was at commit [af51545ec9a44eadf3fe3547610a5cdd882bc34e](https://github.com/NixOS/nixpkgs/tree/af51545ec9a44eadf3fe3547610a5cdd882bc34e), the following sufficed for `dotnet publish --self-contained --configuration Release` to Just Work to build a `<PublishAot>true</PublishAot>` executable on aarch64-darwin:
+
+```nix
+{
+    outputs = { nixpkgs, ... }:
+    let pkgs = nixpkgs.legacyPackages.aarch64-darwin; in
+    {
+        devShell = pkgs.mkShell {
+            buildInputs = [ pkgs.dotnetCorePackages.sdk_9_0 ];
+            packages = [
+              pkgs.clang
+              pkgs.darwin.ICU
+              pkgs.darwin.binutils
+            ];
+        }
+    }
+}
+```