nix-shared/system/linux/system.nix

{ ... }:
{
  # Environment package management
  # Remove unnecessary default packages to keep system minimal
  # Default packages usually include basic utilities that might not be needed
  environment.defaultPackages = [ ];

  # Clean up temporary files on every boot
  # This prevents /tmp from accumulating old files and filling up
  boot.tmp.cleanOnBoot = true;

  # Disable coredumps to prevent filling up /var/lib/systemd/coredump/
  # Coredumps can quickly consume large amounts of disk space
  systemd.coredump.enable = false;

  # Disable core dumps.
  security.pam.loginLimits = [
    { domain = "*"; item = "core"; type = "hard"; value = "0"; }
  ];
}