I found a solution.

Its working with this command:

./nodebb setup '{ "url": "http://localhost:4568", "secret": "27b3b80b-5bcb-4bcb-bd81-da24bbfd7bzz", "database": "mongo", "mongo": { "host": "127.0.0.1", "port": "27017", "username": "bXSJ3bA23V9uX7ZD", "password": "3qQ5NRsxwaHk8DIt", "database": "nodebb2", "uri": "" }, "port": "4568", "admin:username": "admin", "admin:password": "qswaefrd", "admin:password:confirm": "qswaefrd", "admin:email": "[email protected]" }'

2024-04-17T07:09:34.846Z [85865] - info: [install/checkSetupFlagEnv] checking env vars for setup info...
2024-04-17T07:09:34.847Z [85865] - error: [install/checkSetupFlagEnv] required values are missing for automated setup:
2024-04-17T07:09:34.847Z [85865] - error: admin:username
2024-04-17T07:09:34.848Z [85865] - error: admin:password
2024-04-17T07:09:34.848Z [85865] - error: admin:password:confirm
2024-04-17T07:09:34.848Z [85865] - error: admin:email