I’d be very careful about the business taxes - it used to be a common model that Germans would form a UK ltd to do mostly business in germany - and they were generally liable for corporate taxes in germany. (1) So depending on your local tax laws and where you perform work/where your customers are located, you might still be liable for taxes.
(1) see the section about “inbound Tätigkeit” here https://www.dittmann-hartmann.de/Fachgebiete/Gesellschaftsre...