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.