Dear @Malcolm,
Welcome back to the Wefugees Community and thank you for your question.
I have to agree with Simi - as long as your case is still pending, you are not allowed to work self-employed or open a business. For more information (in various languages) you may see "Handbook Germany" as well.
In any case, please don't hesitate to get back to us with any further questions.
All the best,
Meike