Expand custom ISO options

misc/custom-iso-base.nix

@@ -0,0 +1,47 @@
+{ config, pkgs, ... }:
+let
+  partition-and-install = pkgs.writeScriptBin "partition-and-install" ''
+    read -p "Erasing disk $1 Are you sure? " -n 1 -r
+    echo
+    if [[ $REPLY =~ ^[Yy]$ ]]
+    then
+      parted $1 -- mklabel gpt
+      parted $1 -- mkpart root ext4 512MB 100%
+      parted $1 -- mkpart ESP fat32 1MB 512MB
+      parted $1 -- set 2 esp on
+
+      mkfs.ext4 -L nixos $1$2
+      mkfs.fat -F 32 -n BOOT $1$3
+
+      mount /dev/disk/by-label/nixos /mnt
+      mkdir /mnt/boot
+      mount -o umask=077 /dev/disk/by-label/BOOT /mnt/boot
+
+      fetch-config
+
+      nixos-install
+    fi
+  '';
+  fetch-config = pkgs.writeScriptBin "fetch-config" ''
+    nixos-generate-config --root /mnt
+    mv /mnt/etc/nixos/configuration.nix configuration.nix.old
+    curl https://raw.githubusercontent.com/VSinerva/nixos-conf/main/misc/template-configuration.nix -o /mnt/etc/nixos/configuration.nix
+  '';
+in
+{
+  imports = [
+    <nixpkgs/nixos/modules/installer/cd-dvd/channel.nix>
+    ../base.nix
+  ];
+
+  environment.systemPackages = [
+    partition-and-install
+    fetch-config
+  ];
+
+  #Many installs will need this, and it won't hurt either way
+  services.qemuGuest.enable = true;
+
+  #Prevent user from being locked out of the system before switching to proper config
+  users.mutableUsers = pkgs.lib.mkForce true;
+}