diff --git a/configuration.nix b/configuration.nix
index 5a4cde4..3732426 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -43,8 +43,6 @@
     ./system-modules/nx2site.nix
     ./system-modules/postgres.nix
     ./system-modules/nx2site/proxy.nix
-    ./system-modules/calendar-publish.nix
-    ./system-modules/calendar-lec.nix
     ./system-modules/nx2site/audiobookshelf.nix
     ./system-modules/nx2site/gitea.nix
     ./system-modules/nx2site/open-web-calendar.nix
@@ -52,6 +50,10 @@
     # ./system-modules/nx2site/nextcloud.nix
     ./system-modules/nx2site/vaultwarden.nix
     ./system-modules/nx2site/paperless.nix
+
+    ./system-modules/calendar-publish.nix
+    ./system-modules/calendar-lec.nix
+    ./system-modules/calendar-dicos.nix
   ] else []);
 
   # Set your time zone.
diff --git a/system-modules/calendar-dicos.nix b/system-modules/calendar-dicos.nix
new file mode 100644
index 0000000..e34c8da
--- /dev/null
+++ b/system-modules/calendar-dicos.nix
@@ -0,0 +1,132 @@
+{ pkgs, ... }:
+{
+  systemd.timers."nx_cal_dicos" = {
+    enable = true;
+    wantedBy = [ "timers.target" ];
+    timerConfig = {
+      OnBootSec = "40m";
+      OnUnitActiveSec = "24h";
+      Unit = "nx_cal_dicos.service";
+    };
+  };
+
+  systemd.services."nx_cal_dicos" = {
+    script = let
+      nx_cal_dicos = (pkgs.writers.writePython3Bin "nx_cal_dicos" {
+      libraries = with pkgs.python3Packages; [
+        ics
+      ];
+      flakeIgnore = [ "E302" "E305" "E226" "E501" ];
+    } /*python */ ''
+import os
+from glob import glob
+from ics import Calendar
+from ics.event import datetime
+
+NETTO_STUNDE = 18.46
+WEEKLY = 12
+
+week_dict = {}
+latest_week = 0
+latest_goal = WEEKLY
+deficit = 0
+
+def fraction_to_unicode(frac):
+    div, rem = divmod(frac, 1)
+    if rem == 0.5:
+        unicode = "½"
+    elif rem == 0.25:
+        unicode = "¼"
+    elif rem == 0.75:
+        unicode = "¾"
+    elif rem == 0:
+        unicode = ""
+    else:
+        unicode = rem
+    if div == 0:
+        h = ""
+    else:
+        h = int(div)
+    return f"{h}{unicode}"
+
+def modify_event(event):
+    """Modify the event if it contains 'DICOS' in the SUMMARY."""
+    global week_dict
+    global latest_goal
+    global latest_week
+    global deficit
+
+    if event.name and "DICOS" in event.name:
+        length = (event.end - event.begin).seconds / 3600
+        money_made = divmod(length * NETTO_STUNDE, 1)
+
+        # Calculate total hours for DICOS events in the same week
+        year, week, _ = event.begin.isocalendar()
+
+        if week != latest_week:
+            try:
+                deficit = latest_goal - week_dict[f"{year}_{latest_week}"]
+            except KeyError:
+                deficit = 0
+
+        week_dict[f"{year}_{week}"] = length + (week_dict[f"{year}_{week}"] if f"{year}_{week}" in week_dict else 0)
+
+        progress = week_dict[f"{year}_{week}"]
+        goal = WEEKLY + deficit
+
+        if week != latest_week:
+            latest_goal = goal
+            latest_week = week
+
+        progress_line = f"({fraction_to_unicode(progress)}/{fraction_to_unicode(goal)})"
+
+        event.description = f"Netto: {money_made[0]:.0f},{int(money_made[1] * 10):02d}€\nThis weeks porgress: {progress_line}\nThis weeks deficit: {fraction_to_unicode(deficit)}"
+        event.name = f"DICOS {fraction_to_unicode(length)}"
+    return event
+
+def process_ics_file(filepath):
+    """Read, modify, and overwrite an ICS file."""
+    with open(filepath, 'r') as f:
+        calendar = Calendar(f.read())
+
+    modified = False
+
+    for event in calendar.events:
+        if 'DICOS' in event.name:
+            event = modify_event(event)
+            modified = True
+
+    if modified:
+        with open(filepath, 'w') as f:
+            f.writelines(calendar.serialize_iter())
+
+def get_event_start_time(filepath):
+    """Extract the event's start time from an ICS file."""
+    with open(filepath, 'r') as f:
+        calendar = Calendar(f.read())
+
+    for event in calendar.events:
+        return event.begin.datetime
+    else:
+        return datetime(year=1, month=1, day=1)
+
+
+if __name__ == "__main__":
+    directory = "/var/lib/radicale/collections/collection-root/nx2/experience"
+    ics_files = glob(os.path.join(directory, "*.ics"))
+    if not ics_files:
+        print("No ICS files found in the directory.")
+    sorted_files = sorted(ics_files, key=get_event_start_time)
+    for ics_file in sorted_files:
+        process_ics_file(ics_file)
+    print("Processing complete.")
+'');
+    in ''
+      ${nx_cal_dicos}/bin/nx_cal_dicos
+    '';
+    serviceConfig = {
+      Type = "oneshot";
+      User = "radicale";
+    };
+  };
+}
diff --git a/system-modules/calendar-publish.nix b/system-modules/calendar-publish.nix
index c7b706f..0a60d97 100644
--- a/system-modules/calendar-publish.nix
+++ b/system-modules/calendar-publish.nix
@@ -1,18 +1,30 @@
 { config, pkgs, user, ... }:
+let 
+  radicale-root = "/var/lib/radicale";
+  web-root = "/var/nginx/webroot";
+in
 {
-  environment.systemPackages = with pkgs; let
-    radicale-root = "/var/lib/radicale";
-    web-root = "/var/nginx/webroot";
-  in [
-    (writers.writePython3Bin "nx_cal_pub" {
-      libraries = with python3Packages; [ 
-        ical
-        ics
-        requests
-        dateutils
-      ];
-      flakeIgnore = [ "E302" "E305" "E226" "E501" ];
-    } /*python */ ''
+  systemd.timers."nx_cal_publish" = {
+    enable = true;
+    wantedBy = [ "timers.target" ];
+    timerConfig = {
+      OnBootSec = "2m";
+      OnUnitActiveSec = "6h";
+      Unit = "nx_cal_publish.service";
+    };
+  };
+
+  systemd.services."nx_cal_publish" = {
+    script = with pkgs; let 
+      nx_cal_publish = (writers.writePython3Bin "nx_cal_publish" {
+        libraries = with python3Packages; [ 
+          ical
+          ics
+          requests
+          dateutils
+        ];
+        flakeIgnore = [ "E302" "E305" "E226" "E501" ];
+      } /*python */ ''
 import pytz
 import os
 from ics import Calendar, Event
@@ -114,21 +126,9 @@ if __name__ == "__main__":
     OUTPUT_FILE = "${web-root}/schedule.ics"
 
     combine_ics_from_directories(DIRECTORIES, OUTPUT_FILE)
-'')
-  ];
-  systemd.timers."nx_cal_publish" = {
-    enable = true;
-    wantedBy = [ "timers.target" ];
-    timerConfig = {
-      OnBootSec = "2m";
-      OnUnitActiveSec = "6h";
-      Unit = "nx_cal_publish.service";
-    };
-  };
-
-  systemd.services."nx_cal_publish" = {
-    script = ''
-      nx_cal_publish
+''); 
+    in ''
+      ${nx_cal_publish}/bin/nx_cal_publish
     '';
     serviceConfig = {
       Type = "oneshot";