diff --git a/common/packages.nix b/common/packages.nix
index d507b42..0a048cc 100644
--- a/common/packages.nix
+++ b/common/packages.nix
@@ -1,8 +1,6 @@
-{ lib, pkgs, config, ... }:
+{ pkgs, config, ... }:
 
 { 
-  # take overlays from flake
-  nixpkgs.overlays = lib.attrValues config.inputInjection.flake-inputs.self.overlays;
   # List packages installed in system profile.
   environment.systemPackages = with pkgs; [
     wget
diff --git a/flake.lock b/flake.lock
index d53cfed..0887fc4 100644
--- a/flake.lock
+++ b/flake.lock
@@ -74,6 +74,22 @@
       "inputs": {
         "systems": "systems"
       },
+      "locked": {
+        "lastModified": 1701680307,
+        "narHash": "sha256-kAuep2h5ajznlPMD9rnQyffWG8EM/C73lejGofXvdM8=",
+        "path": "/nix/store/pgid9c9xfcrbqx2giry0an0bi0df7s5c-source",
+        "rev": "4022d587cbbfd70fe950c1e2083a02621806a725",
+        "type": "path"
+      },
+      "original": {
+        "id": "flake-utils",
+        "type": "indirect"
+      }
+    },
+    "flake-utils_2": {
+      "inputs": {
+        "systems": "systems_2"
+      },
       "locked": {
         "lastModified": 1681202837,
         "narHash": "sha256-H+Rh19JDwRtpVPAWp64F+rlEtxUWBAQW28eAi3SRSzg=",
@@ -136,7 +152,7 @@
         "crane": "crane",
         "flake-compat": "flake-compat",
         "flake-parts": "flake-parts",
-        "flake-utils": "flake-utils",
+        "flake-utils": "flake-utils_2",
         "nixpkgs": "nixpkgs",
         "pre-commit-hooks-nix": "pre-commit-hooks-nix",
         "rust-overlay": "rust-overlay"
@@ -206,11 +222,11 @@
     },
     "nixos-unstable": {
       "locked": {
-        "lastModified": 1707546158,
-        "narHash": "sha256-nYYJTpzfPMDxI8mzhQsYjIUX+grorqjKEU9Np6Xwy/0=",
+        "lastModified": 1707092692,
+        "narHash": "sha256-ZbHsm+mGk/izkWtT4xwwqz38fdlwu7nUUKXTOmm4SyE=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "d934204a0f8d9198e1e4515dd6fec76a139c87f0",
+        "rev": "faf912b086576fd1a15fca610166c98d47bc667e",
         "type": "github"
       },
       "original": {
@@ -254,11 +270,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1707650010,
-        "narHash": "sha256-dOhphIA4MGrH4ElNCy/OlwmN24MsnEqFjRR6+RY7jZw=",
+        "lastModified": 1707238373,
+        "narHash": "sha256-WKxT0yLzWbFZwYi92lI0yWJpYtRaFSWHGX8QXzejapw=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "809cca784b9f72a5ad4b991e0e7bcf8890f9c3a6",
+        "rev": "fb0c047e30b69696acc42e669d02452ca1b55755",
         "type": "github"
       },
       "original": {
@@ -316,6 +332,7 @@
     },
     "root": {
       "inputs": {
+        "flake-utils": "flake-utils",
         "home-manager": "home-manager",
         "lanzaboote": "lanzaboote",
         "logseq-fix-nixpkgs": "logseq-fix-nixpkgs",
@@ -382,9 +399,24 @@
         "type": "github"
       }
     },
+    "systems_3": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
     "utils": {
       "inputs": {
-        "systems": "systems_2"
+        "systems": "systems_3"
       },
       "locked": {
         "lastModified": 1705309234,
diff --git a/flake.nix b/flake.nix
index bcfb9b6..c19ddea 100644
--- a/flake.nix
+++ b/flake.nix
@@ -26,10 +26,10 @@
   };
 
   outputs = 
-  { self, nixpkgs, nur, lanzaboote, utils, home-manager, ... }@inputs: 
+  { self, nixpkgs, nur, lanzaboote, flake-utils, home-manager, ... }@inputs: 
   let
     # FIXME: allow different systems
-    systems = utils.lib.system;
+    systems = flake-utils.lib.system;
     # necessary to make the top-level inputs available to system configuration
     # inspired by https://jade.fyi/blog/flakes-arent-real/
     inputInjection = {pkgs, lib, ...}: {
@@ -74,24 +74,10 @@
     };
   in
   {
-    overlays.default = import ./packages;
     nixosConfigurations = {
       thinknix = mkSystem systems.x86_64-linux [ ./hosts/thinknix inputs.nixos-hardware.nixosModules.lenovo-thinkpad-t440s lanzaboote.nixosModules.lanzaboote ];
       framenix = mkSystem systems.x86_64-linux [ ./hosts/framenix inputs.nixos-hardware.nixosModules.framework-13-7040-amd lanzaboote.nixosModules.lanzaboote ];
     };
     homeConfigurations.spiollinux = mkHomeManager "spiollinux" "spiollinux" systems.x86_64-linux;
-  } // utils.lib.eachDefaultSystem(system:
-    let
-      nixpkgs = import inputs.nixpkgs {
-        inherit system;
-        overlays = nixpkgs.lib.attrValues self.overlays;
-      };
-      pkgs = inputs.nixpkgs.legacyPackages.${system};
-    in {
-      devShells.default = pkgs.mkShell {
-        buildInputs = [];
-      };
-      # expose nixpkgs with overlay; TODO: figure out role of config
-      #legacyPackages = nixpkgs;
-    });
+  };
 }
diff --git a/hosts/framenix/default.nix b/hosts/framenix/default.nix
index 6c2be01..f2282de 100644
--- a/hosts/framenix/default.nix
+++ b/hosts/framenix/default.nix
@@ -38,13 +38,8 @@ in
     }
     ];
 
-  boot.kernelParams = [ 
-    # temporary workaround for white flickering graphics artefacts
-    "amdgpu.sg_display=0"
-    # powersave
-    "amd_pstate=active"
-    "amdgpu.abmlevel=1" # adaptive backlight management
-  ];
+  # temporary workaround for white flickering graphics artefacts
+  boot.kernelParams = [ "amdgpu.sg_display=0" ];
 
   boot.loader = {
     systemd-boot.enable = true;
diff --git a/packages/default.nix b/packages/default.nix
deleted file mode 100644
index 557002f..0000000
--- a/packages/default.nix
+++ /dev/null
@@ -1,12 +0,0 @@
-final: prev: {
-  power-profiles-daemon = prev.power-profiles-daemon.overrideAttrs (old: {
-    patches = [
-      # patch for AMD pstate CPUs
-      (final.fetchpatch {
-        url = "https://gitlab.freedesktop.org/upower/power-profiles-daemon/-/merge_requests/127.patch";
-        sha256 = "sha256-CneqixlpZx9iZ0PM5MFIutsvnqKrLlM7FHOHUA/MK6g=";
-      })
-    ];
-  });
-
-}