Toolchain: Move nix script from Documentation into Toolchain

Moves the nix script to setup the build environment from Documentation
into the Toolchain as a callable script.  I also modified the script
to accept a "pkgs" argument to make it easy to override the nixpkgs
version from the command-line when calling the script.

1 files changed, 3 insertions, 38 deletions

diff --git a/Documentation/BuildInstructionsOther.md b/Documentation/BuildInstructionsOther.md
index 357cf351d0..8cb9ad558a 100644
--- a/Documentation/BuildInstructionsOther.md
+++ b/Documentation/BuildInstructionsOther.md
@@ -26,47 +26,12 @@ apt-get install curl cmake libmpc-devel gmp-devel e2fsprogs libmpfr-devel ninja-
 
 ## NixOS
 
-You can use a `nix-shell` script like the following to set up the correct environment:
+You can use the `nix-shell` script [`Toolchain/serenity.nix`](../Toolchain/serenity.nix) to set up the environment:
 
-myshell.nix:
-
-```
-with import <nixpkgs> {};
-
-stdenv.mkDerivation {
-  name = "cpp-env";
-  nativeBuildInputs = [
-    gcc11
-    curl
-    cmake
-    mpfr
-    ninja
-    gmp
-    libmpc
-    e2fsprogs
-    patch
-    ccache
-    rsync
-    unzip
-
-    # Example Build-time Additional Dependencies
-    pkgconfig
-  ];
-  buildInputs = [
-    # Example Run-time Additional Dependencies
-    openssl
-    x11
-    qemu
-    # glibc
-  ];
-  hardeningDisable = [ "format" "fortify" ];
-}
+```console
+nix-shell Toolchain/serenity.nix
 ```
 
-Then use this script: `nix-shell myshell.nix`.
-
-Once you're in nix-shell, you should be able to follow the build directions.
-
 ## Alpine Linux
 
 First, make sure you have enabled the `community` repository in `/etc/apk/repositories` and run `apk update`. It has been tested on `edge`, YMMV on `stable`.