Welcome to PIK's Gitlab source-code repository server.
1) With a PIK account: select the "PIK" tab on the right, and enter your usual PIK username and password.
2) With a non-PIK account: select the "Standard" tab.
If you belong to a whitelisted domain, and have yet to create an account here, use the "Register" tab. You do not need to register a new account if you are a PIK member.
Do not use "Register" for pik-potsdam.de email addresses!!