Files
nixy/hosts/laptop/persistence.nix
T
2026-08-13 23:53:14 +02:00

29 lines
972 B
Nix

# Impermanence: declares what should survive a wipe of "/".
{
environment.persistence."/persist" = {
hideMounts = true;
directories = [
"/etc/NetworkManager/system-connections" # Wifi connections, VPN
"/var/lib/bluetooth" # Bluetooth connections
"/var/lib/nixos" # keeps uid/gid stable across boots
"/var/lib/systemd/coredump"
"/var/lib/upower" # battery calibration state
"/var/lib/systemd/backlight" # remembers screen brightness
"/var/lib/systemd/timers" # last-run timestamps (e.g. nix gc weekly)
"/var/log"
"/var/cache/tuigreet"
"/var/db/sudo/lectured" # remembers that the sudo lecture was already shown
];
files = [
"/etc/machine-id"
"/etc/ssh/ssh_host_ed25519_key"
"/etc/ssh/ssh_host_ed25519_key.pub"
"/etc/ssh/ssh_host_rsa_key"
"/etc/ssh/ssh_host_rsa_key.pub"
"/var/lib/systemd/random-seed" # avoid a weak entropy pool on first boot
];
};
}