From 60098412035873d6635581e6b305d1a9c3f46387 Mon Sep 17 00:00:00 2001
From: Donovan Glover <donovan@dglover.co>
Date: Sun, 15 Dec 2024 18:06:15 -0500
Subject: [PATCH] hosts: add iso

This makes it possible to build a custom NixOS installer iso with the
tools I want. Ideally I get to a point where I can use the iso like a
live cd with Hyprland and/or dwm installed with everything already
configured.

Build the iso with the following command:

```
nix build .#nixosConfigurations.iso.config.system.build.isoImage
```

Then, use qemu to test the iso:

```
qemu-system-x86_64 -enable-kvm -m 256 -cdrom ./result/iso/nixos-*
```
---
 flake.nix                   |  6 ++++++
 hosts/iso/configuration.nix | 13 +++++++++++++
 2 files changed, 19 insertions(+)
 create mode 100644 hosts/iso/configuration.nix

diff --git a/flake.nix b/flake.nix
index 049b7283..c67f61b2 100644
--- a/flake.nix
+++ b/flake.nix
@@ -84,6 +84,12 @@
           specialArgs.nix-config = self;
           modules = listFilesRecursive ./hosts/phone;
         };
+
+        iso = nixosSystem {
+          system = "x86_64-linux";
+          specialArgs.nix-config = self;
+          modules = listFilesRecursive ./hosts/iso;
+        };
       };
 
       formatter = forAllSystems (pkgs: pkgs.nixfmt-rfc-style);
diff --git a/hosts/iso/configuration.nix b/hosts/iso/configuration.nix
new file mode 100644
index 00000000..f2d36d89
--- /dev/null
+++ b/hosts/iso/configuration.nix
@@ -0,0 +1,13 @@
+{ pkgs, modulesPath, ... }:
+
+{
+  imports = [
+    (modulesPath + "/installer/cd-dvd/installation-cd-minimal.nix")
+  ];
+
+  environment.systemPackages = with pkgs; [
+    neovim
+  ];
+
+  isoImage.squashfsCompression = "gzip -Xcompression-level 1";
+}