rename modules to configs

configs/common.nix

@@ -0,0 +1,120 @@
+{
+  lib,
+  pkgs,
+  config,
+  nixpkgs,
+  agenix,
+  ...
+}: {
+  age = {
+    identityPaths = ["/etc/age/key"];
+
+    secrets = {
+      rootPassword.file = ../secrets/${config.networking.hostName}/rootPassword.age;
+      userPassword.file = ../secrets/userPassword.age;
+      tailscaleKey.file = ../secrets/tailscaleKey.age;
+    };
+  };
+
+  boot = {
+    kernelPackages = pkgs.linuxPackages_latest;
+    kernelParams = ["quiet" "loglevel=3"];
+  };
+
+  console.keyMap = "fr";
+
+  environment = {
+    systemPackages = with pkgs; let
+      inherit (pkgs.stdenv.hostPlatform) system;
+    in [
+      agenix.packages.${system}.default
+      neovim
+      git
+      curl
+    ];
+
+    variables = {
+      EDITOR = lib.getExe pkgs.neovim;
+    };
+  };
+
+  home-manager = {
+    useGlobalPkgs = true;
+    useUserPackages = true;
+  };
+
+  i18n.defaultLocale = "en_US.UTF-8";
+
+  networking.networkmanager.enable = true;
+
+  nix = {
+    gc = {
+      automatic = true;
+      dates = "weekly";
+      options = "-d";
+    };
+
+    registry = let
+      nixpkgsRegistry.flake = nixpkgs;
+    in {
+      nixpkgs = nixpkgsRegistry;
+      n = nixpkgsRegistry;
+    };
+
+    settings = {
+      auto-optimise-store = true;
+      experimental-features = ["nix-command" "flakes"];
+      trusted-users = ["root" "@wheel"];
+    };
+  };
+
+  nixpkgs = {
+    config.allowUnfree = true;
+    overlays = [(import ../exprs/overlay.nix)];
+  };
+
+  programs = {
+    ssh.startAgent = true;
+
+    direnv.enable = true;
+
+    command-not-found.enable = false;
+    nix-index = {
+      enable = true;
+      enableFishIntegration = true;
+    };
+  };
+
+  security = {
+    rtkit.enable = true;
+    polkit.enable = true;
+  };
+
+  services = {
+    openssh = {
+      enable = true;
+      openFirewall = lib.mkDefault false;
+    };
+
+    vscode-server.enable = true;
+
+    tailscale = {
+      enable = true;
+      useRoutingFeatures = "both";
+      extraUpFlags = ["--ssh"];
+      authKeyFile = config.age.secrets.tailscaleKey.path;
+    };
+  };
+
+  time.timeZone = "Europe/Paris";
+
+  users.users.root.hashedPasswordFile = config.age.secrets.rootPassword.path;
+
+  # This value determines the NixOS release from which the default
+  # settings for stateful data, like file locations and database versions
+  # on your system were taken. It‘s perfectly fine and recommended to leave
+  # this value at the release version of the first install of this system.
+  # Before changing this value read the documentation for this option
+  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+  system.stateVersion = lib.mkDefault "23.11"; # Did you read the comment?
+}