chore(repo): initialize workspace

flake.nix

@@ -0,0 +1,26 @@
+{
+  description = "alexion.dev";
+
+  inputs = {
+    # Base nixpkgs channel.
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+  };
+
+  outputs = { nixpkgs, ... }:
+    let
+      system = "x86_64-linux";
+      pkgs = import nixpkgs {
+        inherit system;
+        config.allowUnfree = true;
+      };
+    in
+    {
+      devShells.${system} = {
+        test = pkgs.mkShell {
+          shellHook = ''
+            echo "Hello world!"
+          '';
+        };
+      };
+    };
+}