diff --git a/pkgs/tools/nix/cached-nix-shell/default.nix b/pkgs/tools/nix/cached-nix-shell/default.nix
index 3df316ef9e35..0cbf0f6b106d 100644
--- a/pkgs/tools/nix/cached-nix-shell/default.nix
+++ b/pkgs/tools/nix/cached-nix-shell/default.nix
@@ -1,4 +1,4 @@
-{ lib, fetchFromGitHub, nix, openssl, pkg-config, ronn, rustPlatform }:
+{ lib, fetchFromGitHub, nix, ronn, rustPlatform }:
 
 let
   blake3-src = fetchFromGitHub {
diff --git a/pkgs/tools/nix/manix/default.nix b/pkgs/tools/nix/manix/default.nix
index 768a283ebd26..6975e61fa6cb 100644
--- a/pkgs/tools/nix/manix/default.nix
+++ b/pkgs/tools/nix/manix/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitHub, rustPlatform, darwin, Security }:
+{ lib, stdenv, fetchFromGitHub, rustPlatform, Security }:
 
 rustPlatform.buildRustPackage rec {
   pname = "manix";
diff --git a/pkgs/tools/nix/nixdoc/default.nix b/pkgs/tools/nix/nixdoc/default.nix
index 785261a8e092..7fc47ef91a72 100644
--- a/pkgs/tools/nix/nixdoc/default.nix
+++ b/pkgs/tools/nix/nixdoc/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitHub, fetchpatch, rustPlatform, darwin }:
+{ lib, stdenv, fetchFromGitHub, rustPlatform, darwin }:
 
 rustPlatform.buildRustPackage rec {
   pname = "nixdoc";
diff --git a/pkgs/tools/nix/nixos-install-tools/default.nix b/pkgs/tools/nix/nixos-install-tools/default.nix
index 8a00c15d905c..63f2da0df21c 100644
--- a/pkgs/tools/nix/nixos-install-tools/default.nix
+++ b/pkgs/tools/nix/nixos-install-tools/default.nix
@@ -63,7 +63,7 @@ in
       touch $out
     '';
   };
-}).overrideAttrs (o: {
+}).overrideAttrs {
   inherit version;
   pname = "nixos-install-tools";
-})
+}
diff --git a/pkgs/tools/nix/npins/default.nix b/pkgs/tools/nix/npins/default.nix
index 96f2f5548884..b9b589ebd22c 100644
--- a/pkgs/tools/nix/npins/default.nix
+++ b/pkgs/tools/nix/npins/default.nix
@@ -1,7 +1,5 @@
 { lib
 , rustPlatform
-, fetchFromGitHub
-, nix-gitignore
 , makeWrapper
 , stdenv
 , darwin
diff --git a/pkgs/tools/package-management/appimagekit/default.nix b/pkgs/tools/package-management/appimagekit/default.nix
index 3fa9528add12..d11cd1612758 100644
--- a/pkgs/tools/package-management/appimagekit/default.nix
+++ b/pkgs/tools/package-management/appimagekit/default.nix
@@ -17,7 +17,7 @@ let
   };
 
   # squashfuse adapted to nix from cmake experession in "${appimagekit_src}/lib/libappimage/cmake/dependencies.cmake"
-  appimagekit_squashfuse = squashfuse.overrideAttrs (attrs: rec {
+  appimagekit_squashfuse = squashfuse.overrideAttrs rec {
     pname = "squashfuse";
     version = "unstable-2016-10-09";
 
@@ -61,7 +61,7 @@ let
       cp -v ./.libs/*.a $out/lib
       cp -v ./*.h $out/include
     '';
-  });
+  };
 
 in stdenv.mkDerivation rec {
   pname = "appimagekit";
diff --git a/pkgs/tools/package-management/disnix/default.nix b/pkgs/tools/package-management/disnix/default.nix
index dedb57960b35..27f055c089cb 100644
--- a/pkgs/tools/package-management/disnix/default.nix
+++ b/pkgs/tools/package-management/disnix/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchurl, pkg-config, glib, libxml2, libxslt, getopt, gettext, dysnomia, libintl, libiconv }:
+{ lib, stdenv, fetchurl, pkg-config, glib, libxml2, libxslt, getopt, dysnomia, libintl, libiconv }:
 
 stdenv.mkDerivation rec {
   pname = "disnix";
diff --git a/pkgs/tools/package-management/fusesoc/default.nix b/pkgs/tools/package-management/fusesoc/default.nix
index 92a8dc1807b9..99926fd5c047 100644
--- a/pkgs/tools/package-management/fusesoc/default.nix
+++ b/pkgs/tools/package-management/fusesoc/default.nix
@@ -4,7 +4,6 @@
 , verilog
 , verilator
 , gnumake
-, gcc
 , edalize
 , fastjsonschema
 , pyparsing
diff --git a/pkgs/tools/package-management/home-manager/default.nix b/pkgs/tools/package-management/home-manager/default.nix
index 89a626fef672..c65b244cb96f 100644
--- a/pkgs/tools/package-management/home-manager/default.nix
+++ b/pkgs/tools/package-management/home-manager/default.nix
@@ -14,7 +14,7 @@
 , unstableGitUpdater
 }:
 
-stdenvNoCC.mkDerivation (finalAttrs: {
+stdenvNoCC.mkDerivation {
   pname = "home-manager";
   version = "2023-05-30";
 
@@ -89,4 +89,4 @@ stdenvNoCC.mkDerivation (finalAttrs: {
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ AndersonTorres ];
   };
-})
+}
diff --git a/pkgs/tools/package-management/nix/default.nix b/pkgs/tools/package-management/nix/default.nix
index f55b2bb8688c..6ff28eb4e651 100644
--- a/pkgs/tools/package-management/nix/default.nix
+++ b/pkgs/tools/package-management/nix/default.nix
@@ -76,10 +76,10 @@ let
   aws-sdk-cpp-nix = (aws-sdk-cpp.override {
     apis = [ "s3" "transfer" ];
     customMemoryManagement = false;
-  }).overrideAttrs (args: {
+  }).overrideAttrs {
     # only a stripped down version is build which takes a lot less resources to build
     requiredSystemFeatures = [ ];
-  });
+  };
 
 
   common = args:
diff --git a/pkgs/tools/package-management/pdm/default.nix b/pkgs/tools/package-management/pdm/default.nix
index 8e057daaa2a3..dba9d11b4729 100644
--- a/pkgs/tools/package-management/pdm/default.nix
+++ b/pkgs/tools/package-management/pdm/default.nix
@@ -13,7 +13,7 @@ let
     # 3. Ansible being unable to upgrade to a later version of resolvelib
     # see here for more details: https://github.com/NixOS/nixpkgs/pull/155380/files#r786255738
     packageOverrides = self: super: {
-      resolvelib = super.resolvelib.overridePythonAttrs (attrs: rec {
+      resolvelib = super.resolvelib.overridePythonAttrs rec {
         version = "1.0.1";
         src = fetchFromGitHub {
           owner = "sarugaku";
@@ -21,7 +21,7 @@ let
           rev = "/refs/tags/${version}";
           hash = "sha256-oxyPn3aFPOyx/2aP7Eg2ThtPbyzrFT1JzWqy6GqNbzM=";
         };
-      });
+      };
     };
     self = python;
   };
diff --git a/pkgs/tools/system/collectd/plugins.nix b/pkgs/tools/system/collectd/plugins.nix
index 3bef287ccf04..9ca18b06203d 100644
--- a/pkgs/tools/system/collectd/plugins.nix
+++ b/pkgs/tools/system/collectd/plugins.nix
@@ -1,6 +1,5 @@
 { lib, stdenv
 , curl
-, darwin
 , hiredis
 , iptables
 , jdk
@@ -19,7 +18,6 @@
 , libsigrok
 , libvirt
 , libxml2
-, libapparmor, libcap_ng, numactl
 , lua
 , lvm2
 , lm_sensors
diff --git a/pkgs/tools/system/datefudge/default.nix b/pkgs/tools/system/datefudge/default.nix
index 079b6b694360..d83e4aa383bc 100644
--- a/pkgs/tools/system/datefudge/default.nix
+++ b/pkgs/tools/system/datefudge/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, fetchgit, fetchpatch, makeWrapper, coreutils }:
+{ lib, stdenv, fetchgit, makeWrapper, coreutils }:
 
 stdenv.mkDerivation rec {
   pname = "datefudge";
diff --git a/pkgs/tools/system/honcho/default.nix b/pkgs/tools/system/honcho/default.nix
index c7e25e578520..1fef47933bb5 100644
--- a/pkgs/tools/system/honcho/default.nix
+++ b/pkgs/tools/system/honcho/default.nix
@@ -1,9 +1,7 @@
 { lib, fetchFromGitHub, python3Packages }:
 
 let
-  inherit (python3Packages) python;
   pname = "honcho";
-
 in
 
 python3Packages.buildPythonApplication rec {
diff --git a/pkgs/tools/system/hw-probe/default.nix b/pkgs/tools/system/hw-probe/default.nix
index ee538f92668a..501ae69dbfd2 100644
--- a/pkgs/tools/system/hw-probe/default.nix
+++ b/pkgs/tools/system/hw-probe/default.nix
@@ -1,6 +1,5 @@
-{ config
+{ lib
 , stdenv
-, lib
 , fetchFromGitHub
 , makeWrapper
 , makePerlPath
diff --git a/pkgs/tools/system/kanata/default.nix b/pkgs/tools/system/kanata/default.nix
index 0b55c3522fb0..5a3450df0866 100644
--- a/pkgs/tools/system/kanata/default.nix
+++ b/pkgs/tools/system/kanata/default.nix
@@ -1,7 +1,6 @@
-{ fetchFromGitHub
-, fetchpatch
-, lib
+{ lib
 , rustPlatform
+, fetchFromGitHub
 , withCmd ? false
 }:
 
diff --git a/pkgs/tools/system/minijail/tools.nix b/pkgs/tools/system/minijail/tools.nix
index caaba84c0833..f54e76777612 100644
--- a/pkgs/tools/system/minijail/tools.nix
+++ b/pkgs/tools/system/minijail/tools.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, buildPythonApplication, pkgsBuildTarget, python, minijail }:
+{ lib, buildPythonApplication, pkgsBuildTarget, python, minijail }:
 
 let
   targetClang = pkgsBuildTarget.targetPackages.clangStdenv.cc;
diff --git a/pkgs/tools/system/proot/default.nix b/pkgs/tools/system/proot/default.nix
index 8ccb540e4ec7..665be5cbabfe 100644
--- a/pkgs/tools/system/proot/default.nix
+++ b/pkgs/tools/system/proot/default.nix
@@ -1,7 +1,6 @@
 { lib, stdenv, fetchFromGitHub
 , talloc
 , pkg-config
-, git
 , ncurses
 , docutils, swig, python3, coreutils, enablePython ? true }:
 
diff --git a/pkgs/tools/system/s0ix-selftest-tool/default.nix b/pkgs/tools/system/s0ix-selftest-tool/default.nix
index 193fbb0aef5f..f75ba42ac90a 100644
--- a/pkgs/tools/system/s0ix-selftest-tool/default.nix
+++ b/pkgs/tools/system/s0ix-selftest-tool/default.nix
@@ -12,7 +12,6 @@
   pciutils,
   powertop,
   resholve,
-  stdenv,
   util-linux,
   xorg,
   xxd,