daniil-berg
c9b976f0ae
The public baseline hard-coded a German keymap and Europe/Berlin time zone — personal values a consumer would have to override. Default them to region-agnostic values instead (`us` keymap, `UTC`, `en_US` locale), all `mkDefault`, so a private inventory sets the real regional values on top without needing `mkForce`. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
127 lines
4.1 KiB
Nix
127 lines
4.1 KiB
Nix
# Generic system-level config. Reusable across hosts — nothing machine- or
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# user-specific here. The user account, hostname and system.stateVersion live in
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# the per-host inventory (hosts/<host>/), not in this module.
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{ config, lib, pkgs, ... }:
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{
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imports = [ ./shutdown-debug.nix ];
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nix.settings.experimental-features = [ "nix-command" "flakes" ];
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# Deduplicate identical store paths via hardlinks.
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nix.settings.auto-optimise-store = true;
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# Weekly GC of generations older than 30 days (frees disk + prunes stale boot
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# entries). Flat age cutoff — Nix has no snapper-style tiered retention.
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nix.gc = {
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automatic = true;
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dates = "weekly";
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options = "--delete-older-than 30d";
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};
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# Bootloader systemd-boot much simpler than GRUB.
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boot.loader.systemd-boot.enable = true;
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boot.loader.efi.canTouchEfiVariables = true;
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# Show only the newest 5 generations in the boot menu (display cap only; GC
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# above does the actual deletion).
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boot.loader.systemd-boot.configurationLimit = 5;
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# Use latest kernel.
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boot.kernelPackages = pkgs.linuxPackages_latest;
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# Configure network connections interactively with nmcli or nmtui.
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networking.networkmanager.enable = true;
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networking.firewall = {
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allowedTCPPorts = [
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22000 # syncthing sync transport (TCP)
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];
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allowedUDPPorts = [
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22000 # syncthing sync transport (QUIC)
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21027 # syncthing LAN discovery
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];
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};
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# Neutral template defaults for regional/localized settings. All are
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# mkDefault: set the real values (time zone, keymap, locale categories) in your
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# own config so this public baseline stays region-agnostic.
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time.timeZone = lib.mkDefault "UTC";
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i18n.defaultLocale = lib.mkDefault "en_US.UTF-8";
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console = {
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font = lib.mkDefault "Lat2-Terminus16";
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keyMap = lib.mkDefault "us";
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};
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# Programs.
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programs.zsh.enable = true;
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programs.hyprland.enable = true;
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programs.dconf.enable = true;
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# nix-ld: install a stub dynamic linker at the standard FHS path
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# (/lib64/ld-linux-*.so), which NixOS otherwise lacks. Lets unpatched
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# prebuilt binaries run — notably the standalone CPython builds uv downloads
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# and pip wheels with compiled extensions (numpy, pydantic-core, ...). The
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# libraries list is exposed as NIX_LD_LIBRARY_PATH so those binaries find
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# common shared libs; extend it when an import fails with "libFOO.so.N: cannot
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# open shared object file".
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programs.nix-ld = {
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enable = true;
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libraries = with pkgs; [
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stdenv.cc.cc.lib # libstdc++, libgcc_s, libgomp
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zlib # libz
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zstd # libzstd (pyarrow, polars)
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openssl # libssl, libcrypto
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];
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};
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# Packages installed in system profile.
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environment.systemPackages = with pkgs; [
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curl
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git
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neovim
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wget
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];
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nixpkgs.config.allowUnfree = true;
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# Install nice font.
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fonts.packages = with pkgs; [
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nerd-fonts.jetbrains-mono
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];
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# Enable sound.
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services.pipewire = {
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enable = true;
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alsa.enable = true;
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alsa.support32Bit = true;
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pulse.enable = true;
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};
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security.rtkit.enable = true;
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# Cache sudo credentials for 30 min per terminal (default 5). Tradeoff: an
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# unlocked, unattended terminal can sudo without re-auth for that window.
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security.sudo.extraConfig = "Defaults timestamp_timeout=30";
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# Login manager.
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services.greetd = {
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enable = true;
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settings = {
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default_session = {
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command = "${pkgs.tuigreet}/bin/tuigreet --time --remember --cmd start-hyprland";
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user = "greeter";
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};
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};
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};
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# Unlock the login keyring with the login password at the greetd prompt,
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# so the Secret Service is open without a second passphrase.
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security.pam.services.greetd.enableGnomeKeyring = true;
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# XDG portals (screen sharing, file pickers, and so on). The GTK portal (for
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# file dialogs) is added at the home-manager layer, not here: home-manager's
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# Hyprland module pins the portal search dir to the user profile, so a portal
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# listed in this system-level extraPortals is never seen. See modules/home.nix.
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xdg.portal = {
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enable = true;
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extraPortals = [ pkgs.xdg-desktop-portal-hyprland ];
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};
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}
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