Use overlay

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

flake.lock

@@ -2,11 +2,11 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1758427187,
+        "lastModified": 1754725699,
-        "narHash": "sha256-pHpxZ/IyCwoTQPtFIAG2QaxuSm8jWzrzBGjwQZIttJc=",
+        "narHash": "sha256-iAcj9T/Y+3DBy2J0N+yF9XQQQ8IEb5swLFzs23CdP88=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "554be6495561ff07b6c724047bdd7e0716aa7b46",
+        "rev": "85dbfc7aaf52ecb755f87e577ddbe6dbbdbc1054",
         "type": "github"
       },
       "original": {
@@ -29,11 +29,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1758206697,
+        "lastModified": 1754847726,
-        "narHash": "sha256-/DbPkh6PZOgfueCbs3uzlk4ASU2nPPsiVWhpMCNkAd0=",
+        "narHash": "sha256-2vX8QjO5lRsDbNYvN9hVHXLU6oMl+V/PsmIiJREG4rE=",
         "owner": "numtide",
         "repo": "treefmt-nix",
-        "rev": "128222dc911b8e2e18939537bed1762b7f3a04aa",
+        "rev": "7d81f6fb2e19bf84f1c65135d1060d829fae2408",
         "type": "github"
       },
       "original": {

flake.nix

@@ -11,7 +11,7 @@
   outputs =
     inputs:
     {
-      overlays.default = import ./overlays;
+      overlays.default = import ./overlay;
     }
     // (
       let
@@ -26,18 +26,8 @@
         treefmt = inputs.treefmt-nix.lib.evalModule pkgs ./treefmt.nix;
       in
       {
-        packages.${system} = import ./packages { inherit pkgs; };
         formatter.${system} = treefmt.config.build.wrapper;
-
+        checks.${system}.formatting = treefmt.config.build.check inputs.self;
-        checks.${system} =
-          let
-            packages = pkgs.lib.mapAttrs' (
-              n: pkgs.lib.nameValuePair "package-${n}"
-            ) inputs.self.packages.${system};
-
-            formatter.formatting = treefmt.config.build.check inputs.self;
-          in
-          packages // formatter;
       }
     );
 }

overlay/default.nix

@@ -12,9 +12,3 @@ final: prev:
     };
   };
 }
-// (import ../packages { pkgs = final; })
-// {
-  dockerImages = prev.dockerImages or { } // {
-    base = final.docker-image-base;
-  };
-}

packages/default.nix

@@ -1,4 +0,0 @@
-{ pkgs, ... }:
-{
-  docker-image-base = import ./docker/base { inherit pkgs; };
-}

packages/docker/base/default.nix

@@ -1,27 +0,0 @@
-{ pkgs, ... }:
-pkgs.dockerTools.buildImage {
-  name = "base";
-
-  copyToRoot = pkgs.buildEnv {
-    name = "root";
-    paths = with pkgs; [
-      dockerTools.usrBinEnv
-      dockerTools.binSh
-      dockerTools.caCertificates
-      bashInteractive
-      busybox
-    ];
-    pathsToLink = [
-      "/bin"
-      "/lib"
-      "/share"
-      "/etc"
-      "/usr"
-    ];
-  };
-
-  runAsRoot = ''
-    ${pkgs.dockerTools.shadowSetup}
-    mkdir -p /tmp
-  '';
-}