clan-core/nixosModules/clanCore/nix-settings.nix
a-kenji 0604d5a83d
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Configure nix inside the machines
Add sane nix defaults for debugging and usability reasons
2023-11-16 14:08:50 +01:00

29 lines
789 B
Nix

{ lib, ... }:
# Taken from:
# https://github.com/nix-community/srvos/blob/main/nixos/common/nix.nix
{
# Fallback quickly if substituters are not available.
nix.settings.connect-timeout = 5;
# Enable flakes
nix.settings.experimental-features = [
"nix-command"
"flakes"
"repl-flake"
];
# The default at 10 is rarely enough.
nix.settings.log-lines = lib.mkDefault 25;
# Avoid disk full issues
nix.settings.max-free = lib.mkDefault (3000 * 1024 * 1024);
nix.settings.min-free = lib.mkDefault (512 * 1024 * 1024);
nix.daemonCPUSchedPolicy = lib.mkDefault "batch";
nix.daemonIOSchedClass = lib.mkDefault "idle";
nix.daemonIOSchedPriority = lib.mkDefault 7;
# Avoid copying unnecessary stuff over SSH
nix.settings.builders-use-substitutes = true;
}