Update flake inputs

1. Use `stdenv.hostPlatform.system` instead of `system`.
2. Use `runCommand` instead of `runCommandNoCC`.
3. Add new nixpkgs instance for neochat.
4. Set niri config to null when other GUI module.

pkgs/doom-emacs/package.nix

@@ -1,11 +1,12 @@
 {
   inputs,
-  system,
+  stdenv,
   editor-runtime,
   symlinkJoin,
   makeWrapper,
 }:
 let
+  inherit (stdenv.hostPlatform) system;
   inherit (inputs) nixpkgs emacs-overlay nix-doom;
   pkgs = import nixpkgs {
     localSystem = { inherit system; };
@@ -31,9 +32,10 @@ let
         git
         ripgrep
         fd
-        imagemagick
       ])
-      ++ [ editor-runtime ];
+      ++ [
+        editor-runtime
+      ];
   };
 in
 symlinkJoin {

pkgs/helix/package.nix

@@ -1,11 +1,12 @@
 {
   inputs,
-  system,
+  stdenv,
   callPackage,
   buildEnv,
   lib,
 }:
 let
+  inherit (stdenv.hostPlatform) system;
   inherit (inputs.helix.packages."${system}") helix;
   runtime = callPackage ./runtime.nix { };
   helix' = helix.overrideAttrs (

pkgs/helix/runtime.nix

@@ -2,7 +2,7 @@
   lib,
   srcs,
   stdenv,
-  runCommandNoCCLocal,
+  runCommandLocal,
 }:
 let
   buildGrammar =
@@ -80,18 +80,18 @@ let
       }
     )
     |> lib.mapAttrsToList (_: value: "ln -s ${value.value}/${value.name}.so $out/${value.name}.so");
-  grammarDir = runCommandNoCCLocal "helix-grammars" { } ''
+  grammarDir = runCommandLocal "helix-grammars" { } ''
     mkdir -p $out
 
     ${builtins.concatStringsSep "\n" grammarLinks}
   '';
-  queryDir = runCommandNoCCLocal "helix-query" { } ''
+  queryDir = runCommandLocal "helix-query" { } ''
     mkdir -p $out
 
     ${builtins.concatStringsSep "\n" queries}
   '';
 in
-runCommandNoCCLocal "helix-runtime" { } ''
+runCommandLocal "helix-runtime" { } ''
   mkdir -p $out
 
   ln -s ${grammarDir} $out/grammars

pkgs/wallpapers.nix

@@ -1,6 +1,6 @@
 {
   srcs,
-  runCommandNoCCLocal,
+  runCommandLocal,
   rootPath,
   lib,
 }:
@@ -11,7 +11,7 @@ let
     |> filterAttrs (name: _value: hasPrefix "wallpaper" name)
     |> concatMapAttrsStringSep "\n" (name: value: "ln -s ${value.src} $out/${name}");
 in
-runCommandNoCCLocal "wallpapers" { } ''
+runCommandLocal "wallpapers" { } ''
   mkdir -p $out
 
   ${wallpapers}