feat: Gitea | migrate helm chart into CDKTF (#3)

Reviewed-on: #3

flake.nix

@@ -2,26 +2,38 @@
   description = "Flake to work with homelab setup";
 
   inputs = {
-    nixpkgs.url = "https://flakehub.com/f/NixOS/nixpkgs/0.1";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
     flake-utils.url = "github:numtide/flake-utils";
   };
 
   outputs = { nixpkgs, flake-utils, ... }: flake-utils.lib.eachDefaultSystem (system:
     let
+      lib = nixpkgs.lib;
+
       # Import nixpkgs to access packages
-      pkgs = import nixpkgs { inherit system; };
+      pkgs = import nixpkgs {
+        inherit system;
+        config = {
+          allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) [
+            "terraform"
+          ];
+        };
+      };
 
       # Define the devshell
       devShell = pkgs.mkShell {
         buildInputs = with pkgs; [
-          helmfile
-          kubernetes-helm
-          kubernetes-helmPlugins.helm-diff
           kubectl
           nil
+          terraform
+          tflint
 
           # Adding node for copilot
           nodejs_24
+
+          # cli tools
+          nodePackages.cdktf-cli
+          rm-improved
         ];
       };
     in {