Add khard with config

home/accounts/contact.nix

@@ -1,6 +1,7 @@
 { config, lib, pkgs, ... }:
 
 {
+  home.packages = with pkgs; [ khard ];
   programs.vdirsyncer.enable = true;
   accounts.contact = {
     basePath = ".contact";
@@ -24,4 +25,60 @@
       };
     };
   };
+  xdg.configFile."khard/khard.conf".text = ''
+    # example configuration file for khard version > 0.14.0
+    # place it under ~/.config/khard/khard.conf
+    # This file is parsed by the configobj library.  The syntax is described at
+    # https://configobj.readthedocs.io/en/latest/configobj.html#the-config-file-format
+
+    [addressbooks]
+    [[nextcloud]]
+    path = ~/.contact/nextcloud/contacts-1/
+
+    [general]
+    debug = no
+    default_action = list
+    # These are either strings or comma seperated lists
+    # editor = vim, -i, NONE
+    # merge_editor = vimdiff
+
+    [contact table]
+    # display names by first or last name: first_name / last_name / formatted_name
+    display = first_name
+    # group by address book: yes / no
+    group_by_addressbook = no
+    # reverse table ordering: yes / no
+    reverse = no
+    # append nicknames to name column: yes / no
+    show_nicknames = yes
+    # show uid table column: yes / no
+    show_uids = yes
+    # show kind table column: yes / no
+    show_kinds = no
+    # sort by first or last name: first_name / last_name / formatted_name
+    sort = last_name
+    # localize dates: yes / no
+    localize_dates = yes
+    # set a comma separated list of preferred phone number types in descending priority
+    # or nothing for non-filtered alphabetical order
+    # preferred_phone_number_type = pref, cell, home
+    # set a comma separated list of preferred email address types in descending priority
+    # or nothing for non-filtered alphabetical order
+    # preferred_email_address_type = pref, work, home
+
+    [vcard]
+    # extend contacts with your own private objects
+    # these objects are stored with a leading "X-" before the object name in the vcard files
+    # every object label may only contain letters, digits and the - character
+    # example:
+    #   private_objects = Jabber, Skype, Twitter
+    # default: ,  (the empty list)
+    # private_objects = Jabber, Skype, Twitter
+    # preferred vcard version: 3.0 / 4.0
+    preferred_version = 3.0
+    # Look into source vcf files to speed up search queries: yes / no
+    search_in_source_files = no
+    # skip unparsable vcard files: yes / no
+    skip_unparsable = no
+  '';
 }