nix: Clean up files, use good practices

Author: https://github.com/RGBCube 🔰
Commit: 720feaa658
Pull-request: https://github.com/SerenityOS/serenity/pull/23603
Reviewed-by: https://github.com/ADKaster ✅
Reviewed-by: https://github.com/MacDue

Toolchain/default.nix

@@ -1,9 +1,7 @@
-{ pkgs ? import <nixpkgs> { } }:
-with pkgs;
+{ pkgs ? import <nixpkgs> { } }: with pkgs;
 
-stdenv.mkDerivation {
-  name = "cpp-env";
-  nativeBuildInputs = [
+mkShell.override { stdenv = gcc13Stdenv; } {
+  packages = [
     ccache
     cmake
     curl
@@ -21,11 +19,6 @@ stdenv.mkDerivation {
     rsync
     texinfo
     unzip
-  ];
-
-  buildInputs = [
-    e2fsprogs
-    fuse2fs
     # To build the GRUB disk image
     grub2
     libxcrypt
@@ -34,6 +27,4 @@ stdenv.mkDerivation {
     qemu
     python3
   ];
-
-  hardeningDisable = [ "format" "fortify" ];
 }

Toolchain/flake.lock

@@ -1,61 +0,0 @@
-{
-  "nodes": {
-    "flake-utils": {
-      "inputs": {
-        "systems": "systems"
-      },
-      "locked": {
-        "lastModified": 1692799911,
-        "narHash": "sha256-3eihraek4qL744EvQXsK1Ha6C3CR7nnT8X2qWap4RNk=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "f9e7cf818399d17d347f847525c5a5a8032e4e44",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    },
-    "nixpkgs": {
-      "locked": {
-        "lastModified": 1701253981,
-        "narHash": "sha256-ztaDIyZ7HrTAfEEUt9AtTDNoCYxUdSd6NrRHaYOIxtk=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "e92039b55bcd58469325ded85d4f58dd5a4eaf58",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixos-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "root": {
-      "inputs": {
-        "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs"
-      }
-    },
-    "systems": {
-      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default",
-        "type": "github"
-      }
-    }
-  },
-  "root": "root",
-  "version": 7
-}

Toolchain/flake.nix

@@ -1,21 +0,0 @@
-{
-  description = "Serenity OS";
-
-  inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
-    flake-utils.url = "github:numtide/flake-utils";
-  };
-  outputs = { self, flake-utils, nixpkgs }:
-
-    flake-utils.lib.eachDefaultSystem
-      (system:
-        let pkgs = nixpkgs.legacyPackages.${system}; in
-        {
-          formatter = pkgs.nixpkgs-fmt;
-          devShells.default = import ./serenity.nix { inherit pkgs; };
-          devShells.ladybird = import ../Ladybird/ladybird.nix { inherit pkgs; };
-        }
-      );
-
-
-}