Add Nylas mail module. Still needs keyring configuration

nixos/modules/programs/nylas-mail.nix

@@ -0,0 +1,43 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.services.nylas-mail;
+  defaultUser = "nylas-mail";
+in {
+  ###### interface
+  options = {
+    services.nylas-mail = {
+
+      enable = mkEnableOption ''
+        nylas-mail - Open-source mail client built on the modern web with Electron, React, and Flux
+      '';
+
+      gnome3-keyring = mkOption {
+        type = types.bool;
+        default = true;
+        description = "Enable gnome3 keyring for nylas-mail.";
+      };
+
+      package = mkOption {
+        type = types.package;
+        default = pkgs.nylas-mail;
+        defaultText = "pkgs.nylas-mail";
+        example = literalExample "pkgs.nylas-mail";
+        description = ''
+          nylas-mail package to use.
+        '';
+      };
+    };
+  };
+
+
+  ###### implementation
+
+  config = mkIf cfg.enable {
+
+
+
+  };
+}