feat(iso): apply suggestions from code review

Author: dbeley

README.md

@@ -114,7 +114,7 @@ Installation without impermanence/disko can be done normally from the NixOS Live
 
 ### Installing with Custom ISO
 
-You can generate a universal installer ISO that includes all your host configurations:
+From this repo, you can generate a universal installer ISO that includes all the available host configurations:
 
 ```bash
 just build-iso
@@ -131,6 +131,8 @@ Boot from the ISO, then:
 sudo disko-install --flake /etc/iso-config#HOSTNAME --disk main /dev/DEVICE
 ```
 
+Don't forget to apply the post-installation steps described in the next section (password file).
+
 **For standard hosts:**
 ```bash
 # Partition manually, then install any host:
@@ -177,7 +179,6 @@ sudo nixos-enter --root /mnt
 You can generate Proxmox-ready VMA images for your VM hosts:
 
 ```bash
-# Build a Proxmox image for a specific host
 just build-proxmox nixos-kimsufi-01
 ```
 

justfile

@@ -52,10 +52,6 @@ build-proxmox host:
   @echo "Building Proxmox image for {{host}}"
   nix build .#proxmox-{{host}} --print-out-paths
 
-build-all-proxmox:
-  @echo "Building all Proxmox images"
-  nix build .#proxmox-nixos-kimsufi-01 .#proxmox-nixos-kimsufi-02 .#proxmox-nixos-kimsufi-03 .#proxmox-nixos-era-01
-
 first-install-disko host target:
   @echo "Installing host {{host}} on target disk {{target}}"
   sudo nix run 'github:nix-community/disko/latest#disko-install' -- --flake .#{{host}} --disk main {{target}} --show-trace

modules/disko/encrypted-btrfs-impermanence.nix

@@ -1,4 +1,9 @@
-{ hostName, lib, ... }:
+{
+  hostName,
+  lib,
+  config,
+  ...
+}:
 {
   options = {
     disko.mainDisk = lib.mkOption {
@@ -14,7 +19,7 @@
       disk = {
         main = {
           type = "disk";
-          device = lib.mkDefault "/dev/nvme0n1";
+          device = config.disko.mainDisk;
           content = {
             type = "gpt";
             partitions = {