The application process to apply for a German PR is:

Step 1: Receive a valid residence permit in Germany.

Step 2: Check if you are eligible.

Step 3: Fill out the application form.

Step 4: Arrange all the required documents.

Step 5: Submit all the documents.

Step 6: Pay the required fees.

Step 7: Wait for a decision.

Step 8: Migrate to Germany.