diff --git a/configs/calcurse.nix b/configs/calcurse.nix
deleted file mode 100644
index 87509ca..0000000
--- a/configs/calcurse.nix
+++ /dev/null
@@ -1,44 +0,0 @@
-{ pkgs, lib, ... }:
-{
-  environment.systemPackages = [ pkgs.calcurse ];
-
-  systemd.services.caldav-sync = {
-    enable = true;
-    wants = [ "network-online.target" ];
-    startAt = "*:0/15";
-    serviceConfig.User = "kfm";
-    script = "${pkgs.calcurse}/bin/calcurse-caldav";
-  };
-
-  home-manager.users.me = {
-    home.file = {
-      ".calcurse/conf".text = ''
-        appearance.calendarview=monthly
-        appearance.layout=1
-        daemon.enable=no
-        daemon.log=no
-        format.inputdate=4
-        format.outputdate=%F
-        general.confirmquit=no
-        general.confirmdelete=yes
-        general.firstdayofweek=monday
-        appearance.theme=default on default
-      '';
-      ".calcurse/caldav/config".text = lib.generators.toINI {} {
-        General = {
-          Binary = "${pkgs.calcurse}/bin/calcurse";
-          Hostname = "posteo.de:8443";
-          Path = "/calendars/kieran.meinhardt/default/";
-          InsecureSSL = "No";
-          DryRun = "No";
-          Verbose = "Yes";
-        };
-        Auth = {
-          Username = "kieran.meinhardt@posteo.net";
-          Password = lib.strings.fileContents <secrets/mail/posteo>;
-        };
-      };
-    };
-  };
-
-}
diff --git a/configs/default.nix b/configs/default.nix
index f026efe..96c383c 100644
--- a/configs/default.nix
+++ b/configs/default.nix
@@ -199,7 +199,7 @@ in {
     ./bluetooth.nix
     ./ccc.nix
     ./kleiter.nix
-    ./calcurse.nix
+    ./khal.nix
     ./engiadina.nix
     ./chromium.nix
     ./cloud.nix
diff --git a/configs/khal.nix b/configs/khal.nix
new file mode 100644
index 0000000..69288b6
--- /dev/null
+++ b/configs/khal.nix
@@ -0,0 +1,79 @@
+{ config, pkgs, lib, ... }:
+let
+  davHome = "~/.local/share/dav";
+  davEndpoint = "https://cloud.xn--kiern-0qa.de/remote.php/dav";
+  username = "kieran";
+  password = lib.fileContents <secrets/nextcloud/password>;
+in
+{
+  environment.systemPackages = [ pkgs.khal pkgs.vdirsyncer ];
+
+  home-manager.users.me = {
+    xdg.configFile = {
+      "khal/config".text = ''
+        [calendars]
+
+        [[kalender_local]]
+        path = ${davHome}/calendar/*
+        color = 27
+        type = discover
+
+        [[kontakte_local]]
+        path = ${davHome}/contacts/contacts/
+        color = 11
+        type = birthdays
+
+        [default]
+        highlight_event_days = True
+        timedelta = 5d
+
+        [locale]
+        timeformat = %H:%M
+        dateformat = %Y-%m-%d
+        longdateformat = %Y-%m-%d
+        datetimeformat = %Y-%m-%d %H:%M
+        longdatetimeformat = %Y-%m-%d %H:%M
+        local_timezone = ${config.time.timeZone}
+        default_timezone = ${config.time.timeZone}
+        weeknumbers = left
+      '';
+
+      "vdirsyncer/config".text = ''
+        [general]
+        status_path = "~/.local/share/vdirsyncer/status/"
+
+        [pair kontakte]
+        a = "kontakte_local"
+        b = "kontakte_cloud"
+        collections = ["from a", "from b"]
+
+        [storage kontakte_local]
+        type = "filesystem"
+        path = "${davHome}/contacts/"
+        fileext = ".vcf"
+
+        [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/${username}/personal/"
+        username = "${username}"
+        password = "${password}"
+      '';
+    };
+  };
+}