testing making my own iso installer

flake.nix

@@ -7,6 +7,11 @@
     #utilites --maybe flake-parts soon?
     flake-utils.url = "github:numtide/flake-utils";
 
+    nixos-generators = {
+      url = "github:nix-community/nixos-generators";
+      inputs.nixpkgs.follows = "unstable";
+    };
+
     #master branch of nix
     nix.url = "github:NixOS/nix";
 
@@ -33,9 +38,9 @@
   outputs = {
     self,
     unstable,
-    stable,
     flake-utils,
     nvim-flake,
+    nixos-generators,
     ...
   } @ inputs:
     {
@@ -111,6 +116,15 @@
           };
           default = nix;
         };
+        packages = {
+          nixos-iso = nixos-generators.nixosGenerate {
+            inherit system;
+            format = "install-iso";
+            modules = [
+              (import ./iso inputs)
+            ];
+          };
+        };
       }
     );
 }

iso/default.nix

@@ -0,0 +1,28 @@
+_: {
+  lib,
+  modulesPath,
+  ...
+}: {
+  imports = [
+    "${toString modulesPath}/profiles/minimal.nix"
+    "${toString modulesPath}/installer/cd-dvd/installation-cd-base.nix"
+  ];
+
+  # Causes a lot of uncached builds for a negligible decrease in size.
+  environment.noXlibs = lib.mkOverride 500 false;
+
+  documentation.man.enable = lib.mkOverride 500 true;
+
+  # Although we don't really need HTML documentation in the minimal installer,
+  # not including it may cause annoying cache misses in the case of the NixOS manual.
+  documentation.doc.enable = lib.mkOverride 500 true;
+
+  fonts.fontconfig.enable = lib.mkForce false;
+
+  isoImage = {
+    edition = lib.mkForce "gerg-minimal";
+
+    isoName = lib.mkForce "NixOS.iso";
+  };
+
+}