switch to nix2container for image building

flake.nix

@@ -1,6 +1,6 @@
 {
   inputs = {
-    nixpkgs.url = "nixpkgs/nixos-25.11";
+    nixpkgs.url = "nixpkgs/nixos-26.05";
     flakelight = {
       url = "github:nix-community/flakelight";
       inputs.nixpkgs.follows = "nixpkgs";
@@ -12,12 +12,18 @@
     phps = {
       url = "github:fossar/nix-phps";
     };
+    nix2container = {
+      url = "github:nlewo/nix2container";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
   };
-  outputs = {
-    mill-scale,
-    phps,
-    ...
-  }:
+  outputs =
+    {
+      nix2container,
+      mill-scale,
+      phps,
+      ...
+    }:
     mill-scale ./. {
       crossTargets = [
         "x86_64-unknown-linux-gnu"
@@ -36,8 +42,17 @@
 
       withOverlays = [
         (import ./nix/overlay.nix)
-        (prev: final: {
+        (final: prev: {
           inherit (phps.packages.${prev.system}) php81 php80;
+          inherit (nix2container.packages.x86_64-linux) nix2container;
+          blackfire = prev.blackfire.overrideAttrs (
+            oldAttrs: finalAttrs: {
+              src = final.fetchurl {
+                url = "https://packages.blackfire.io/debian/pool/any/main/b/blackfire/blackfire_${finalAttrs.version}_amd64.deb";
+                sha256 = "sha256-1fswfZEElLyXWqvNW76BpKTpBomK9cglJtitZgcpxhM=";
+              };
+            }
+          );
         })
       ];
 
@@ -50,20 +65,28 @@
         "haze-image-php-8.0" = pkgs: pkgs.haze-image-php-80;
       };
 
-      tools = pkgs: with pkgs; [cargo-edit bacon skopeo];
+      tools =
+        pkgs: with pkgs; [
+          cargo-edit
+          bacon
+          skopeo
+          dive
+        ];
 
       homeModules = {
-        default = {
-          pkgs,
-          config,
-          lib,
-          ...
-        }: {
-          imports = [./nix/hm-module.nix];
-          config = lib.mkIf config.programs.haze.enable {
-            programs.haze.package = lib.mkDefault pkgs.haze;
+        default =
+          {
+            pkgs,
+            config,
+            lib,
+            ...
+          }:
+          {
+            imports = [ ./nix/hm-module.nix ];
+            config = lib.mkIf config.programs.haze.enable {
+              programs.haze.package = lib.mkDefault pkgs.haze;
+            };
           };
-        };
       };
     };
 }