feat: khard, vdirsyncer service

configs/khal.nix

@@ -6,21 +6,58 @@ let
   password = lib.fileContents <secrets/nextcloud/password>;
 in
 {
-  environment.systemPackages = [ pkgs.khal pkgs.vdirsyncer ];
+  environment.systemPackages = [ pkgs.khal pkgs.vdirsyncer pkgs.khard ];
+
+  systemd.user.services.vdirsyncer = {
+    enable = true;
+    wants = [ "network-online.target" ];
+    wantedBy = [ "default.target" ];
+    startAt = "*:00/10";
+    script = ''
+      ${pkgs.vdirsyncer}/bin/vdirsyncer sync
+      ${pkgs.khal}/bin/khal printcalendars # https://lostpackets.de/khal/configure.html#syncing
+    '';
+  };
 
   home-manager.users.me = {
     xdg.configFile = {
+      "khard/khard.conf".text = ''
+        [addressbooks]
+        [[contacts]]
+        path = ${davHome}/contacts/contacts/
+
+        [general]
+        debug = no
+        default_action = list
+        editor = ${config.environment.variables.EDITOR}
+        merge_editor = ${pkgs.vim}/bin/vimdiff
+
+        [contact table]
+        display = first_name
+        group_by_addressbook = no
+        reverse = no
+        show_nicknames = no
+        show_uids = no
+        sort = last_name
+        localize_dates = yes
+        preferred_phone_number_type = pref, cell, home
+        preferred_email_address_type = pref, work, home
+
+        [vcard]
+        search_in_source_files = no
+        skip_unparsable = no
+      '';
+
       "khal/config".text = ''
         [calendars]
 
         [[kalender_local]]
         path = ${davHome}/calendar/*
-        color = 27
+        color = 32
         type = discover
 
         [[kontakte_local]]
         path = ${davHome}/contacts/contacts/
-        color = 11
         type = birthdays
 
         [default]
@@ -46,28 +83,30 @@ in
         a = "kontakte_local"
         b = "kontakte_cloud"
         collections = ["from a", "from b"]
+        conflict_resolution = "b wins"
+
+        [pair kalender]
+        a = "kalender_local"
+        b = "kalender_cloud"
+        collections = ["from a", "from b"]
+        conflict_resolution = "b wins"
 
         [storage kontakte_local]
         type = "filesystem"
         path = "${davHome}/contacts/"
         fileext = ".vcf"
 
+        [storage kalender_local]
+        type = "filesystem"
+        path = "${davHome}/calendar/"
+        fileext = ".ics"
+
         [storage kontakte_cloud]
         type = "carddav"
         url = "${davEndpoint}/addressbooks/users/${username}/contacts/"
         username = "${username}"
         password = "${password}"
 
-        [pair kalender]
-        a = "kalender_local"
-        b = "kalender_cloud"
-        collections = ["from a", "from b"]
-
-        [storage kalender_local]
-        type = "filesystem"
-        path = "${davHome}/calendar/"
-        fileext = ".ics"
-
         [storage kalender_cloud]
         type = "caldav"
         url = "${davEndpoint}/calendars/${username}/personal/"