flake: add nix-std library

flake.lock

@@ -60,6 +60,21 @@
         "type": "github"
       }
     },
+    "nix-std": {
+      "locked": {
+        "lastModified": 1685917625,
+        "narHash": "sha256-2manVKofCZrCToVDnDYNvtYUFBYOM5JhdDoNGVY4fq4=",
+        "owner": "chessai",
+        "repo": "nix-std",
+        "rev": "e20af8822b5739434b875643bfc61fe0195ea2fb",
+        "type": "github"
+      },
+      "original": {
+        "owner": "chessai",
+        "repo": "nix-std",
+        "type": "github"
+      }
+    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1685931219,
@@ -110,6 +125,7 @@
       "inputs": {
         "emacs-overlay": "emacs-overlay",
         "home-manager": "home-manager",
+        "nix-std": "nix-std",
         "nixpkgs": "nixpkgs",
         "nur": "nur"
       }

flake.nix

@@ -7,18 +7,21 @@
     home-manager.url = "github:nix-community/home-manager";
     nur.url = "github:nix-community/NUR";
     emacs-overlay.url = "github:nix-community/emacs-overlay";
+    nix-std.url = "github:chessai/nix-std";
 
     home-manager.inputs.nixpkgs.follows = "nixpkgs";
     emacs-overlay.inputs.nixpkgs.follows = "nixpkgs";
   };
 
-  outputs = { self, nixpkgs, home-manager, nur, emacs-overlay, ... }@inputs:
+  outputs =
+    { self, nixpkgs, home-manager, nur, emacs-overlay, nix-std, ... }@inputs:
     let
       inherit (nixpkgs.lib) genAttrs nixosSystem;
 
       system = "x86_64-linux";
       hosts = [ "arianrhod" "gwydion" ];
       overlay = import ./overlay.nix;
+      std = nix-std.lib;
     in {
       inherit overlay;
 
@@ -41,6 +44,7 @@
                 useGlobalPkgs = true;
                 useUserPackages = true;
                 users.jez = import ./home;
+                extraSpecialArgs = { inherit std; };
               };
             }
           ];

home/default.nix

@@ -1,4 +1,4 @@
-{ config, pkgs, lib, nixosConfig, ... }:
+{ config, pkgs, lib, nixosConfig, std, ... }:
 
 with builtins;
 let