Added live disk flake

flake.nix

@@ -4,7 +4,10 @@
   inputs = {
     nixpkgs.url = "nixpkgs/nixos-21.05";
 
-    fudo-home.url = "git+https://git.fudo.org/fudo-nix/home.git";
+    fudo-home = {
+      url = "git+https://git.fudo.org/fudo-nix/home.git";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
 
     # This MUST be a clean git repo, because we use the timestamp.
     fudo-entities = {
@@ -25,6 +28,8 @@
     chute.url = "git+https://git.fudo.org/chute/chute.git?ref=stable";
 
     chuteUnstable.url = "git+https://git.fudo.org/chute/chute.git?ref=master";
+
+    nixpkgsUnstable.url = "nixpkgs/nixos-unstable";
   };
 
   outputs = { self,
@@ -36,6 +41,7 @@
               fudo-secrets,
               chute,
               chuteUnstable,
+              nixpkgsUnstable,
               ... } @ inputs:
     with nixpkgs.lib;
     let
@@ -45,7 +51,19 @@
 
       fudo-networks = fudo-entities.entities.networks;
 
-      pkgs-for = arch: import nixpkgs {
+      unstable-for = arch: import nixpkgsUnstable {
+        system = arch;
+        config = {
+          allowUnfree = true;
+          permittedInsecurePackages = [
+            "openssh-with-gssapi-8.4p1"
+          ];
+        };
+      };
+
+      pkgs-for = arch: let
+        unstable = unstable-for arch;
+      in import nixpkgs {
         system = arch;
         config = {
           allowUnfree = true;
@@ -60,6 +78,9 @@
             chute = chute.packages.${arch}.chute;
             chuteUnstable = chuteUnstable.packages.${arch}.chute;
           })
+          (final: prev: {
+            nyxt = unstable.nyxt;
+          })
         ];
       };
 
@@ -91,7 +112,9 @@
           (config-dir + /site-config/${hostOpts.site}.nix)
         ];
 
-        config = {
+        config = let
+          pkgs = pkgs-for hostOpts.arch;
+        in {
           instance = let
             build-seed = builtins.readFile
               config.fudo.secrets.files.build-seed;
@@ -99,14 +122,24 @@
             inherit hostname build-timestamp build-seed;
           };
 
-          nix.registry = {
-            fudo-nixos.flake = self;
-            fudo-entities.flake = fudo-entities;
-            fudo-lib.flake = fudo-lib;
-            fudo-pkgs.flake = fudo-pkgs;
+          environment.etc.nixos-live.source = ./.;
+
+          nix = {
+            registry = {
+              nixpkgs.flake = nixpkgs;
+              fudo-nixos.flake = self;
+              fudo-entities.flake = fudo-entities;
+              fudo-lib.flake = fudo-lib;
+              fudo-pkgs.flake = fudo-pkgs;
+            };
+            nixPath = let
+              lib = nixpkgs.lib;
+            in lib.mkDefault (lib.mkBefore [
+              "nixpkgs=${nixpkgs}"
+            ]);
           };
 
-          nixpkgs.pkgs = pkgs-for hostOpts.arch;
+          nixpkgs.pkgs = pkgs;
         };
       };