remove unused code

modules/apps.nix

@@ -1,4 +1,4 @@
-{ config, lib, flake-parts-lib, ... }:
+{ lib, flake-parts-lib, ... }:
 let
   inherit (lib)
     mkOption
@@ -17,11 +17,6 @@ let
   getExe = x:
     "${lib.getBin x}/bin/${x.meta.mainProgram or (throw ''Package ${x.name or ""} does not have meta.mainProgram set, so I don't know how to find the main executable. You can set meta.mainProgram, or pass the full path to executable, e.g. program = "''${pkg}/bin/foo"'')}";
 
-  getBin = x:
-    if !x?outputSpecified || !x.outputSpecified
-    then x.bin or x.out or x
-    else x;
-
   appType = lib.types.submodule {
     options = {
       type = mkOption {

modules/checks.nix

@@ -1,4 +1,4 @@
-{ config, lib, flake-parts-lib, ... }:
+{ lib, flake-parts-lib, ... }:
 let
   inherit (lib)
     mkOption

modules/debug.nix

@@ -10,9 +10,6 @@ let
   inherit (flake-parts-lib)
     mkPerSystemOption
     ;
-  inherit (builtins)
-    removeAttrs
-    ;
 
   mkDebugConfig = { config, options, extendModules }: config // {
     inherit config;

modules/devShells.nix

@@ -1,4 +1,4 @@
-{ config, lib, flake-parts-lib, ... }:
+{ lib, flake-parts-lib, ... }:
 let
   inherit (lib)
     mkOption

modules/flake.nix

@@ -1,10 +1,7 @@
-{ config, lib, ... }:
+{ lib, ... }:
 let
   inherit (lib)
-    filterAttrs
-    mapAttrs
     mkOption
-    optionalAttrs
     types
     ;
 in

modules/formatter.nix

@@ -24,7 +24,7 @@ in
       };
     };
 
-    perSystem = mkPerSystemOption ({ config, ... }: {
+    perSystem = mkPerSystemOption {
       _file = ./formatter.nix;
       options = {
         formatter = mkOption {
@@ -35,7 +35,7 @@ in
           '';
         };
       };
-    });
+    };
   };
   config = {
     flake.formatter =

modules/legacyPackages.nix

@@ -1,4 +1,4 @@
-{ config, lib, flake-parts-lib, ... }:
+{ lib, flake-parts-lib, ... }:
 let
   inherit (lib)
     mkOption

modules/moduleWithSystem.nix

@@ -1,4 +1,4 @@
-{ config, lib, withSystem, ... }:
+{ withSystem, ... }:
 {
   config = {
     _module.args = {

modules/nixosConfigurations.nix

@@ -1,4 +1,4 @@
-{ config, lib, flake-parts-lib, ... }:
+{ lib, flake-parts-lib, ... }:
 let
   inherit (lib)
     mkOption

modules/nixosModules.nix

@@ -1,10 +1,8 @@
-{ config, self, lib, flake-parts-lib, ... }:
+{ self, lib, flake-parts-lib, ... }:
 let
   inherit (lib)
-    filterAttrs
     mapAttrs
     mkOption
-    optionalAttrs
     types
     ;
   inherit (flake-parts-lib)

modules/overlays.nix

@@ -1,4 +1,4 @@
-{ config, lib, flake-parts-lib, ... }:
+{ lib, flake-parts-lib, ... }:
 let
   inherit (lib)
     mkOption
@@ -16,7 +16,7 @@ in
         # also update description when done
         type = types.lazyAttrsOf (types.uniq (types.functionTo (types.functionTo (types.lazyAttrsOf types.unspecified))));
         # This eta expansion exists for the sole purpose of making nix flake check happy.
-        apply = lib.mapAttrs (k: f: final: prev: f final prev);
+        apply = lib.mapAttrs (_k: f: final: prev: f final prev);
         default = { };
         example = lib.literalExpression or lib.literalExample ''
           {

modules/packages.nix

@@ -1,4 +1,4 @@
-{ config, lib, flake-parts-lib, ... }:
+{ lib, flake-parts-lib, ... }:
 let
   inherit (lib)
     mkOption

modules/transposition.nix

@@ -7,10 +7,6 @@ let
     mkOption
     types
     ;
-  inherit (flake-parts-lib)
-    mkSubmoduleOptions
-    mkPerSystemOption
-    ;
 
   transpositionModule = {
     options = {
@@ -70,7 +66,7 @@ in
           config.transposition
         );
 
-    perSystem = { ... }: {
+    perSystem = {
       options =
         mapAttrs
           (k: v: lib.mkOption { })

modules/withSystem.nix

@@ -1,8 +1,6 @@
-{ config, lib, flake-parts-lib, self, getSystem, ... }:
+{ lib, flake-parts-lib, getSystem, ... }:
 let
   inherit (lib)
-    genAttrs
-    mapAttrs
     mkOption
     types
     ;
@@ -12,7 +10,7 @@ let
 in
 {
   options = {
-    perSystem = mkPerSystemOption ({ config, options, system, specialArgs, ... }: {
+    perSystem = mkPerSystemOption ({ config, options, specialArgs, ... }: {
       _file = ./perSystem.nix;
       options = {
         allModuleArgs = mkOption {