I tried to get an appointment for the Anmeldung for almost a month till I got frustrated and created this little script.
./anmeldung.pl [options...]
--district DISTRICT Limit search to a specific district (default all)
--maxdays DAYS Set the maximum days till the appointment (default 14)
--delay SECONDS Delay between fetches (default 60)
--beeps COUNT Number of beeps to play when available date found (default 7)
--list-districts Displays the districts list
1: Charlottenburg - Wilmersdorf
2: Friedrichshain - Kreuzberg
3: Lichtenberg
4: Marzahn - Hellersdorf
5: Mitte
6: Neukölln
7: Pankow
8: Reinickendorf
9: Spandau
10: Steglitz - Zehlendorf
11: Tempelhof - Schöneberg
12: Treptow - Köpenick