nixy/nixos/autologin.nix

# Autologin at boot: greetd starts your session directly on the first VT
{
  pkgs,
  config,
  lib,
  ...
}: {
  services.greetd.settings.initial_session = {
    command = "${pkgs.uwsm}/bin/uwsm start -e -D Hyprland hyprland.desktop";
    user = config.var.username;
  };

  # Needed so the LUKS passphrase entered at boot is cached in the kernel
  # keyring, where pam_fde_boot_pw can retrieve it (see below).
  boot.initrd.systemd.enable = true;

  security.pam.services.greetd.rules.session.fde_boot_pw = {
    order = 12550; # kwallet=12500, gnome_keyring=12600: must run in between
    control = "optional";
    modulePath = "${pkgs.pam_fde_boot_pw}/lib/security/pam_fde_boot_pw.so";
    args = ["inject_for=gkr"];
  };

  security.pam.services.login.enableGnomeKeyring = true;

  systemd.services.greetd.serviceConfig.KeyringMode = lib.mkForce "shared";
}