chore fixes and gaming

README.md

@@ -8,6 +8,7 @@ Personal NixOS configuration using the [den](https://github.com/vic/den) framewo
 |------------|----------------------|--------|
 | `desktop`  | Gaming + development | Nvidia |
 | `notebook` | Portable development | Intel  |
+| `work`     | Portable development | AMD + Nvidia (PRIME) |
 
 ## Prerequisites
 
@@ -43,6 +44,64 @@ just gc
 just diff
 ```
 
+## Installing on a new machine (notebook)
+
+Only the `notebook` host supports automated installation via the installer ISO.
+No hardware-specific preparation is needed beforehand — the installer detects the
+hardware automatically using `nixos-generate-config`.
+
+### 1. Build and flash the ISO
+
+The ISO embeds the flake at build time, so **all changes must be committed first**.
+
+```bash
+# Commit any pending changes — the ISO only includes git-tracked files
+git add -A && git commit -m "pre-install snapshot"
+
+just iso
+sudo dd if=result/iso/*.iso of=/dev/sdX bs=4M status=progress && sync
+```
+
+### 2. Boot and install
+
+Boot the ISO on the target machine. The installer logs in as root automatically.
+
+**If you need Wi-Fi**, the script will prompt you to connect via `nmtui` before proceeding.
+
+Run the installer:
+```bash
+nixos-install-host
+```
+
+The script will:
+1. Prompt to set up network (Wi-Fi via `nmtui` if needed)
+2. Ask which host to install (`notebook`)
+3. **Auto-detect hardware** with `nixos-generate-config` and inject the result into the flake
+4. Show available disks and confirm the target
+5. Ask for the age key (`keys.txt`) — copy it to a USB or provide the path manually
+6. Partition the disk with LUKS + btrfs via disko (prompts for LUKS passphrase)
+7. Run `nixos-install`
+8. Copy the flake (with detected hardware config) to `~/repos/nixos` on the new system
+
+### 3. Age key
+
+The age key used to encrypt `secrets/secrets.yaml` must be available during installation.
+Bring it on a USB drive — the installer will find it automatically at `/run/media/*/keys.txt`.
+
+### 4. After the first boot
+
+Commit the auto-detected hardware config so future ISO builds include it:
+
+```bash
+cd ~/repos/nixos
+git add modules/_hardware/notebook-hardware.nix
+git commit -m "add notebook hardware config"
+git push
+```
+
+> **Note:** GRUB will ask for the LUKS passphrase once during boot, and the initrd will ask
+> again to mount the root filesystem. This is expected behavior with `enableCryptodisk`.
+
 ## Secrets (SOPS + age)
 
 Secrets are stored encrypted in `secrets/secrets.yaml` and decrypted at boot by [sops-nix](https://github.com/Mic92/sops-nix).

flake.nix

@@ -35,9 +35,13 @@
     let
       system       = "x86_64-linux";
       pkgs         = inputs.nixpkgs.legacyPackages.${system};
+      pkgs-unstable = import inputs.nixpkgs-unstable {
+        inherit system;
+        config.allowUnfree = true;
+      };
       flake  = (inputs.nixpkgs.lib.evalModules {
         modules      = [ (inputs.import-tree ./modules) ];
-        specialArgs.inputs = inputs;
+        specialArgs  = { inherit inputs pkgs-unstable; };
       }).config.flake;
     in flake // {
       nixosConfigurations = flake.nixosConfigurations // {

installer/default.nix

@@ -14,23 +14,71 @@ let
     warn()   { echo -e "''${YELLOW}[warn]''${NC} $1"; }
     die()    { echo -e "''${RED}[error]''${NC} $1"; exit 1; }
 
-    FLAKE="path:/etc/nixos-config"
+    # ------------------------------------------------------------------ #
+    # Network                                                              #
+    # ------------------------------------------------------------------ #
+
+    header "Network"
+    echo "An internet connection is required to download packages during installation."
+    echo "If you need Wi-Fi, connect now with: nmtui"
+    echo ""
+    read -p "Press Enter when the network is ready (or Ctrl-C to abort)..."
+
+    # ------------------------------------------------------------------ #
+    # Host selection                                                       #
+    # ------------------------------------------------------------------ #
 
     header "NixOS Installer"
+    echo "Evaluating flake..."
+    HOSTS_JSON=$(nix eval "path:/etc/nixos-config#nixosConfigurations" \
+                   --apply builtins.attrNames --json) \
+      || die "Failed to evaluate the flake at /etc/nixos-config."
+
     echo "Available hosts:"
-    nix eval "$FLAKE#nixosConfigurations" --apply builtins.attrNames --json 2>/dev/null \
-      | ${pkgs.jq}/bin/jq -r '.[]' | grep -v installer | sed 's/^/  /'
+    echo "$HOSTS_JSON" | ${pkgs.jq}/bin/jq -r '.[]' | grep -v installer | sed 's/^/  /'
     echo ""
 
     read -p "Host to install: " HOST
     [ -z "$HOST" ] && die "No host specified."
 
+    # Verify the selected host has disko configured before touching anything.
+    # local.notebook.disk is only defined for hosts that include notebook-disko.nix.
+    echo "Checking that '$HOST' supports automated installation..."
+    nix eval "path:/etc/nixos-config#nixosConfigurations.$HOST.config.local.notebook.disk" \
+        --raw > /dev/null 2>&1 \
+      || die "Host '$HOST' does not have a disko configuration. Only 'notebook' is supported."
+    ok "Host '$HOST' is supported."
+
+    # ------------------------------------------------------------------ #
+    # Hardware detection                                                   #
+    # ------------------------------------------------------------------ #
+
+    header "Detecting hardware"
+    echo "Running nixos-generate-config..."
+    DETECTED_HW=$(nixos-generate-config --no-filesystems --show-hardware-config 2>/dev/null) \
+      || die "Failed to detect hardware. Is nixos-generate-config available?"
+    ok "Hardware detected."
+
+    # Build a writable copy of the embedded flake and inject the detected
+    # hardware config so both disko and nixos-install use the right modules.
+    echo "Preparing installation flake..."
+    rm -rf /tmp/nixos-flake
+    cp -rL /etc/nixos-config /tmp/nixos-flake
+    echo "$DETECTED_HW" > /tmp/nixos-flake/modules/_hardware/notebook-hardware.nix
+    ok "Hardware config written to flake."
+
+    FLAKE="path:/tmp/nixos-flake"
+
+    # ------------------------------------------------------------------ #
+    # Disk selection                                                       #
+    # ------------------------------------------------------------------ #
+
     header "Available disks"
     lsblk -d -o NAME,SIZE,MODEL --noheadings | grep -v loop
     echo ""
 
-    CONFIGURED_DISK=$(nix eval "$FLAKE#nixosConfigurations.$HOST.config.local.notebook.disk" --raw 2>/dev/null \
-      || echo "/dev/nvme0n1")
+    CONFIGURED_DISK=$(nix eval "$FLAKE#nixosConfigurations.$HOST.config.local.notebook.disk" \
+                        --raw 2>/dev/null || echo "/dev/nvme0n1")
     echo -e "Disk configured for this host: ''${BOLD}$CONFIGURED_DISK''${NC}"
     read -p "Target disk [$CONFIGURED_DISK]: " DISK_INPUT
     DISK="''${DISK_INPUT:-$CONFIGURED_DISK}"
@@ -39,13 +87,23 @@ let
 
     if [ "$DISK" != "$CONFIGURED_DISK" ]; then
       warn "Disk $DISK differs from configured $CONFIGURED_DISK."
-      warn "Edit modules/_hardware/<host>-disko.nix and rebuild the ISO if it doesn't match."
+      warn "The disko config will use $DISK regardless, but update local.notebook.disk in"
+      warn "modules/_hardware/notebook-disko.nix and commit it after installation."
     fi
 
+    # ------------------------------------------------------------------ #
+    # Age key                                                              #
+    # ------------------------------------------------------------------ #
+
     header "Age key (secrets decryption)"
     KEYS_PATH=""
 
-    for candidate in /run/media/nixos/*/keys.txt /run/media/*/keys.txt /tmp/keys.txt; do
+    # Search already-mounted media (standard auto-mount paths)
+    for candidate in \
+        /run/media/nixos/*/keys.txt \
+        /run/media/*/keys.txt \
+        /run/media/*/*/keys.txt \
+        /tmp/keys.txt; do
       if [ -f "$candidate" ]; then
         KEYS_PATH="$candidate"
         ok "Found at $KEYS_PATH"
@@ -53,16 +111,48 @@ let
       fi
     done
 
+    # When booting via Ventoy the USB data partition (label "Ventoy") is not
+    # auto-mounted in the live environment — only the ISO loop device is set up.
+    # Detect it by label, mount read-only, copy keys.txt to /tmp, then unmount.
+    if [ -z "$KEYS_PATH" ]; then
+      VENTOY_DEV=$(${pkgs.util-linux}/bin/blkid -t LABEL="Ventoy" -o device 2>/dev/null | head -1 || true)
+      if [ -n "$VENTOY_DEV" ]; then
+        warn "keys.txt not found in mounted media. Trying Ventoy partition ($VENTOY_DEV)..."
+        VENTOY_MNT=$(mktemp -d)
+        if mount -o ro "$VENTOY_DEV" "$VENTOY_MNT" 2>/dev/null; then
+          if [ -f "$VENTOY_MNT/keys.txt" ]; then
+            cp "$VENTOY_MNT/keys.txt" /tmp/keys.txt
+            chmod 600 /tmp/keys.txt
+            KEYS_PATH="/tmp/keys.txt"
+            ok "Found on Ventoy USB — copied to /tmp/keys.txt"
+          else
+            warn "Ventoy partition mounted but no keys.txt found at its root."
+            echo "Contents of Ventoy root:"
+            ls "$VENTOY_MNT" | sed 's/^/  /'
+          fi
+          umount "$VENTOY_MNT" 2>/dev/null || true
+          rm -rf "$VENTOY_MNT"
+        else
+          warn "Could not mount Ventoy partition $VENTOY_DEV."
+        fi
+      fi
+    fi
+
     if [ -z "$KEYS_PATH" ]; then
       warn "Age key not found automatically."
       echo "Options:"
-      echo "  1. Copy keys.txt to a USB, mount it, and it will be found at /run/media/*"
-      echo "  2. Enter the path manually below"
+      echo "  1. Place keys.txt at the root of the Ventoy USB (alongside the .iso)"
+      echo "  2. Mount another USB and it will be found at /run/media/*"
+      echo "  3. Enter the path manually below"
       read -p "Path to keys.txt: " KEYS_PATH
     fi
 
     [ ! -f "$KEYS_PATH" ] && die "Age key not found at $KEYS_PATH"
 
+    # ------------------------------------------------------------------ #
+    # Confirmation                                                         #
+    # ------------------------------------------------------------------ #
+
     header "Confirmation"
     echo -e "  Host   : ''${BOLD}$HOST''${NC}"
     echo -e "  Disk   : ''${BOLD}$DISK''${NC} (ALL DATA WILL BE ERASED)"
@@ -71,6 +161,10 @@ let
     read -p "Type 'yes' to continue: " CONFIRM
     [ "$CONFIRM" != "yes" ] && { echo "Aborted."; exit 1; }
 
+    # ------------------------------------------------------------------ #
+    # Installation                                                         #
+    # ------------------------------------------------------------------ #
+
     header "Partitioning and formatting"
     echo "(You will be prompted to set the LUKS passphrase.)"
     disko --mode destroy,format,mount --flake "$FLAKE#$HOST"
@@ -83,14 +177,41 @@ let
     header "Installing NixOS"
     nixos-install --root /mnt --flake "$FLAKE#$HOST" --no-root-passwd
 
+    # ------------------------------------------------------------------ #
+    # Post-install: save config to the new system                         #
+    # ------------------------------------------------------------------ #
+
+    header "Saving configuration"
+    # Copy the flake (including the detected hardware config) to the user's
+    # working directory on the installed system so they can commit it.
+    mkdir -p /mnt/home/zoty/repos
+    cp -r /tmp/nixos-flake /mnt/home/zoty/repos/nixos
+    # UID 1000 is the first normal user, matching the zoty account.
+    chown -R 1000:1000 /mnt/home/zoty/repos/nixos
+    ok "Configuration saved to ~/repos/nixos on the installed system."
+
     echo ""
     ok "Installation complete! Remove the USB drive and reboot."
+    echo ""
+    echo "After the first boot, commit the detected hardware config:"
+    echo "  cd ~/repos/nixos"
+    echo "  git add modules/_hardware/notebook-hardware.nix"
+    echo "  git commit -m 'add notebook hardware config'"
+    echo "  git push"
   '';
 in {
   imports = [
     "${modulesPath}/installer/cd-dvd/installation-cd-minimal.nix"
   ];
 
+  # Ventoy presents the ISO as a virtual CDROM without the filesystem label
+  # that NixOS stage-1 expects (nixos-minimal-*). Stage-1 cannot find the
+  # loop device for nix-store.squashfs, causing "unable to read id index table".
+  # copytoram loads the entire ISO into RAM before the squashfs mount, removing
+  # the dependency on the Ventoy device remaining accessible during boot.
+  # See: https://github.com/NixOS/nixpkgs/issues/245101
+  boot.kernelParams = [ "copytoram" ];
+
   services.getty.autologinUser = lib.mkForce "root";
 
   nix.settings = {
@@ -112,7 +233,9 @@ in {
     pkgs.neovim
   ];
 
-  # Embed the flake source so the install script can reference it at path:/etc/nixos-config
+  # Embed the flake source so the install script can copy it at install time.
+  # The script copies it to /tmp/nixos-flake (writable) and injects the
+  # detected hardware config before running disko and nixos-install.
   environment.etc."nixos-config".source = ../.;
 
   documentation.enable       = lib.mkForce false;

modules/_hardware/notebook-hardware.nix

@@ -1,17 +1,28 @@
-# Hardware-specific configuration for the notebook.
-# fileSystems and swap are declared by disko (notebook-disko.nix).
-# Regenerate this file with: nixos-generate-config --no-filesystems --show-hardware-config
-{ config, lib, modulesPath, ... }:
+# Notebook hardware configuration.
+#
+# This file is REPLACED automatically during installation.
+# The installer runs:
+#   nixos-generate-config --no-filesystems --show-hardware-config
+# and writes the output here before calling nixos-install.
+#
+# After installation, commit the generated file:
+#   git add modules/_hardware/notebook-hardware.nix
+#   git commit -m "add notebook hardware config"
+#
+# To regenerate on the installed system:
+#   nixos-generate-config --no-filesystems --show-hardware-config \
+#     > ~/repos/nixos/modules/_hardware/notebook-hardware.nix
+{ lib, modulesPath, ... }:
 {
   imports = [
     (modulesPath + "/installer/scan/not-detected.nix")
   ];
 
-  boot.initrd.availableKernelModules = [ "xhci_pci" "ehci_pci" "ahci" "usb_storage" "ums_realtek" "sd_mod" "sr_mod" ];
-  boot.kernelModules                 = [ "kvm-intel" ];
+  # Filled in by the installer. These are placeholder values that allow
+  # the flake to evaluate before the real hardware is detected.
+  boot.initrd.availableKernelModules = [ "nvme" "xhci_pci" "ahci" "usbhid" "usb_storage" "sd_mod" ];
+  boot.kernelModules                 = [];
   boot.extraModulePackages           = [];
 
-  networking.useDHCP    = lib.mkDefault true;
   nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
-  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
 }

modules/_hardware/work-hardware.nix

@@ -9,7 +9,7 @@
     ];
 
   boot.initrd.availableKernelModules = [ "nvme" "xhci_pci" "ahci" "usbhid" "usb_storage" "sd_mod" ];
-  boot.initrd.kernelModules = [ ];
+  boot.initrd.kernelModules = [ "amdgpu" ];
   boot.kernelModules = [ "kvm-amd" ];
   boot.extraModulePackages = [ ];
 

modules/creative.nix

@@ -1,11 +1,5 @@
-{ den, inputs, ... }: {
-  den.aspects.creative.nixos = { pkgs, ... }:
-  let
-    pkgs-unstable = import inputs.nixpkgs-unstable {
-      system = pkgs.stdenv.hostPlatform.system;
-      config.allowUnfree = true;
-    };
-  in {
+{ den, pkgs-unstable, ... }: {
+  den.aspects.creative.nixos = { ... }: {
     environment.systemPackages = with pkgs-unstable; [
       # 3D
       blender

modules/den.nix

@@ -68,10 +68,10 @@ in {
       den.aspects.dev
       den.aspects.creative
       den.aspects.secrets
-      den.aspects.steam
-      den.aspects.prismlauncher
+      den.aspects.gaming
       den.aspects.androidcam
       den.aspects.winvm
+      den.aspects.leisure
     ];
     nixos = {
       system.stateVersion = "25.11";

modules/dev.nix

@@ -1,14 +1,8 @@
-{ den, inputs, config, ... }:
+{ den, pkgs-unstable, config, ... }:
 let
   username = config.local.identity.username;
 in {
-  den.aspects.dev.nixos = { pkgs, ... }:
-  let
-    pkgs-unstable = import inputs.nixpkgs-unstable {
-      system = pkgs.stdenv.hostPlatform.system;
-      config.allowUnfree = true;
-    };
-  in {
+  den.aspects.dev.nixos = { pkgs, ... }: {
     environment.systemPackages = with pkgs-unstable; [
       # CLI utilities
       gcc
@@ -72,6 +66,7 @@ in {
 
     virtualisation.docker = {
       enable        = true;
+      enableOnBoot  = false;
       package       = pkgs-unstable.docker_29;
     };
     users.users.${username}.extraGroups = [ "docker" ];

modules/gaming.nix

@@ -1,7 +1,13 @@
-{ den, ... }: {
-  den.aspects.steam.nixos = { pkgs, ... }: {
+{ den, pkgs-unstable, ... }: {
+  den.aspects.gaming.nixos = { pkgs, ... }: {
+    hardware.graphics = {
+      enable = true;
+      enable32Bit = true;
+    };
+
     programs.steam = {
       enable = true;
+      package = pkgs-unstable.steam;
 
       remotePlay.openFirewall = false;
       dedicatedServer.openFirewall = false;
@@ -12,23 +18,19 @@
       extraCompatPackages = with pkgs; [
         proton-ge-bin
       ];
-
-      # Extra packages that steam might need
-      extraPackages = with pkgs; [
-        xorg.libXcursor
-        xorg.libXi
-        xorg.libXinerama
-        xorg.libXScrnSaver
-        libpng
-        libpulseaudio
-        libvorbis
-        stdenv.cc.cc.lib
-        libkrb5
-        keyutils
-      ];
     };
 
-    # Fonts for better game text rendering
+    environment.systemPackages = with pkgs; [
+      (prismlauncher.override {
+        jdks = [
+          temurin-bin-8
+          temurin-bin-17
+          temurin-bin-21
+          temurin-bin-25
+        ];
+      })
+    ];
+
     fonts.packages = with pkgs; [
       liberation_ttf
       wqy_zenhei

modules/leisure.nix

@@ -0,0 +1,18 @@
+{ den, pkgs-unstable, ... }: {
+  den.aspects.leisure.nixos = { ... }: {
+    environment.systemPackages = with pkgs-unstable; [
+      # Streaming
+      stremio-linux-shell
+
+      # Torrenting
+      qbittorrent
+
+      # Media playback
+      mpv
+      yt-dlp
+
+      # Social
+      discord
+    ];
+  };
+}

modules/notebook.nix

@@ -14,9 +14,10 @@
     services.thermald.enable = true;
 
     boot = {
-      initrd.availableKernelModules = [ "xhci_pci" "ahci" "usbhid" "sd_mod" ];
+      # Hardware-specific modules (kvm-intel/kvm-amd, nvme, etc.) come from
+      # modules/_hardware/notebook-hardware.nix, generated during installation
+      # by nixos-generate-config --no-filesystems --show-hardware-config.
       initrd.kernelModules = [ "dm-crypt" ];
-      kernelModules                 = [ "kvm-intel" ];
       initrd.compressor    = "zstd";
 
       loader = {

modules/prismlauncher.nix

@@ -1,14 +0,0 @@
-{ den, ...}: {
-  den.aspects.prismlauncher.nixos = { pkgs, ... }: {
-    environment.systemPackages = with pkgs; [
-      (prismlauncher.override {
-        jdks = [
-            temurin-bin-8 
-            temurin-bin-17
-            temurin-bin-21
-            temurin-bin-25
-          ];
-      })
-    ]; 
-  };
-}