diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..d1b009f
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+week_from_*.json
diff --git a/README.md b/README.md
index df9dcca..95f5a29 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 Intended for trainees in Germany to keep track of their daily tasks and qualifications they earned.
 
-This project will contain a script to back up existing entries from
+This project currently only contains a script to back up existing entries from
 the https://digbe.services.ihk.de/digitales-berichtsheft/erstellen-api/v1/ API v1, as it is expected to shut down on
 2025-08-07 00:00:00 CEST / UTC+2
 
diff --git a/main.py b/main.py
new file mode 100644
index 0000000..211108c
--- /dev/null
+++ b/main.py
@@ -0,0 +1,59 @@
+import re
+import os.path
+import subprocess
+import time
+from datetime import datetime, timedelta
+
+
+def download_entries_v1():
+    base_request = input(
+        "Search for \"berichtswoche?\" and select the second result. Copy as cURL and paste here\nDepending on your terminal running this in, you might need to replace any \\n (or \\\\\\n) with '' before pasting, as \\n can trigger the end of the input reading: ")
+
+    start_date = datetime.strptime(input("enter start date to download (yyyy-mm-dd): "), "%Y-%m-%d")
+    end_date = input("enter end date to download (yyyy-mm-dd): ")
+
+    if end_date == "":
+        end_date = datetime.now()
+    else:
+        end_date = datetime.strptime(end_date, "%Y-%m-%d")
+
+    regex = r"(.*)(https:\/\/digbe\.services\.ihk\.de\/digitales-berichtsheft\/erstellen-api\/v1\/berichtswoche\?datum=)([0-9]*-[0-9]{2}-[0-9]{2})(.*)"
+
+    current_date = start_date
+
+    days_in_week = 7
+
+    start_next_week = (current_date + (timedelta(days=(days_in_week - current_date.weekday())))).date()
+
+    while start_next_week < end_date.date():
+        start_next_week = (current_date + (timedelta(days=(days_in_week - current_date.weekday())))).date()
+        week_start = (current_date - timedelta(days=current_date.weekday())).date()
+
+        subst = f"\\g<1>\\g<2>{week_start}\\g<4>"
+
+        result = re.sub(regex, subst, base_request, count=1, flags=re.DOTALL | re.MULTILINE)
+
+        if result:
+            file_name = f"week_from_{week_start}.json"
+            if os.path.isfile(file_name):
+                print(f"skipping already existing file {file_name}")
+                current_date += timedelta(days_in_week)
+                continue
+
+            input_metadata_content = result.replace('curl ', f'curl -o {file_name} ')
+
+            print(f'Fetching week {week_start}')
+            subprocess.Popen(input_metadata_content, shell=True).wait()
+            time.sleep(1)  # not sure if there is ddos protection / spam2ban
+
+            current_date += timedelta(days_in_week)
+        else:
+            print("oops, failed to find date part in cURL")
+            break
+
+    print(
+        f"\nFetched all weeks from {start_date.date()} until {end_date.date()}\nNow backup the files located at {os.getcwd()} and wait until our own report book platform is finished")
+
+
+if __name__ == '__main__':
+    download_entries_v1()