initial(ish) commit

nixos-common.nix

@@ -0,0 +1,64 @@
+{ inputs, config, lib, pkgs, ... }:
+with lib;
+with lib.my;
+let
+  pubkeys = import ./data/pubkeys.nix {};
+in
+{
+  # Set your time zone.
+  time.timeZone = "Europe/Berlin";
+  console.font = "Lat2-Terminus16";
+  console.keyMap = "us";
+
+  users.users.root.openssh.authorizedKeys.keys = pubkeys.ragon.user;
+
+  # Select internationalisation properties.
+  i18n = {
+    defaultLocale = "en_DK.UTF-8";
+  };
+
+  # Configure nix and nixpkgs
+  environment.variables.NIXPKGS_ALLOW_UNFREE = "1";
+  nix =
+    let
+      filteredInputs = filterAttrs (n: _: n != "self") inputs;
+      nixPathInputs = mapAttrsToList (n: v: "${n}=${v}") filteredInputs;
+      registryInputs = mapAttrs (_: v: { flake = v; }) filteredInputs;
+    in
+    {
+      package = pkgs.unstable.nixFlakes;
+      settings = {
+        trusted-users = mkDefault [ "root" "@wheel" ];
+        allowed-users = mkDefault [ "root" "@wheel" ];
+        substituters = [
+           "https://nix-community.cachix.org"
+      ];
+      trusted-public-keys = [
+        "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+      ];
+        auto-optimise-store = true;
+
+      };
+      extraOptions = "experimental-features = nix-command flakes";
+      nixPath = nixPathInputs ++ [
+        "nixpkgs-overlays=${config.conf.dir}/overlays"
+        "conf=${config.conf.dir}"
+      ];
+      registry = registryInputs // { conf.flake = inputs.self; };
+    };
+  system.configurationRevision = with inputs; mkIf (self ? rev) self.rev;
+  system.stateVersion = "21.05";
+
+
+  ## Some reasonable, global defaults
+  # This is here to appease 'nix flake check' for generic hosts with no
+  # hardware-configuration.nix or fileSystem config.
+  fileSystems."/".device = mkDefault "/dev/disk/by-label/nixos";
+
+  boot = {
+    loader = {
+      efi.canTouchEfiVariables = mkDefault true;
+      systemd-boot.configurationLimit = 5;
+    };
+  };
+}