remote install config

hosts/iso/configuration.nix

@@ -0,0 +1,82 @@
+{ pkgs, modulesPath, inputs, ... }:
+
+{
+  imports = [
+    (modulesPath + "/installer/cd-dvd/installation-cd-graphical-calamares-plasma6.nix")
+  ];
+
+  # Tools needed for the install process
+  environment.systemPackages = with pkgs; [
+    # Disk setup
+    inputs.disko.packages.${pkgs.system}.disko
+    cryptsetup
+    # YubiKey enrollment (systemd-cryptenroll for FIDO2)
+    yubikey-personalization
+    yubikey-manager
+    libfido2
+    # Misc
+    git
+    # Install script — available as `install-coven` in PATH
+    (pkgs.writeShellScriptBin "install-coven" ''
+      set -euo pipefail
+
+      FLAKE="git+https://git.sassysalamander.net/wytch/nix-config?ref=main"
+      LUKS_PART="/dev/disk/by-partlabel/disk-main-luks"
+
+      echo "======================================================"
+      echo "  coven install script"
+      echo "  Flake: ''${FLAKE}"
+      echo "======================================================"
+      echo ""
+      echo "WARNING: This will ERASE ALL DATA on /dev/nvme0n1"
+      echo "Press Enter to continue or Ctrl-C to abort."
+      read -r
+
+      echo ""
+      echo "[1/5] Partitioning, formatting, and mounting via disko..."
+      echo "(You will be prompted to set a LUKS passphrase — this becomes your recovery key.)"
+      disko --mode disko --flake "''${FLAKE}#coven"
+
+      echo ""
+      echo "[2/5] Enrolling YubiKey FIDO2 into LUKS container..."
+      echo "      Insert your YubiKey and touch it when prompted."
+      systemd-cryptenroll --fido2-device=auto "''${LUKS_PART}"
+
+      echo ""
+      echo "[3/5] Installing NixOS..."
+      nixos-install --flake "''${FLAKE}#coven" --no-root-password --root /mnt
+
+      echo ""
+      echo "[4/5] Setting user password for sonja..."
+      nixos-enter --root /mnt -c 'passwd sonja'
+
+      echo ""
+      echo "[5/5] Done!"
+      echo ""
+      echo "Next steps after first boot:"
+      echo "  1. Fill in your GPG fingerprint in .sops.yaml"
+      echo "  2. Create and encrypt secrets/secrets.yaml"
+      echo "  3. Uncomment sops config in hosts/coven/configuration.nix"
+      echo ""
+      echo "Remove the install media and reboot."
+      read -rp "Reboot now? [y/N] " yn
+      if [[ "''${yn}" =~ ^[Yy]$ ]]; then
+        reboot
+      fi
+    '')
+  ];
+
+  services.udev.packages = [ pkgs.yubikey-personalization ];
+  services.pcscd.enable  = true;
+
+  # Enable SSH so the machine can be administered remotely during install
+  services.openssh.enable = true;
+  # Add your SSH public key here to allow passwordless remote access from the ISO
+  # users.users.nixos.openssh.authorizedKeys.keys = [ "ssh-ed25519 AAAA..." ];
+
+  nixpkgs.hostPlatform = "x86_64-linux";
+
+  isoImage.squashfsCompression = "zstd -Xcompression-level 6";
+
+  system.stateVersion = "25.11";
+}