Starting a Coffee Roastery

Hello everyone, I am thinking about starting a small coffee roastery. Initially it would be for my own and friends' pleasure and then who knows.

I am trying to understand what type of premises I am allowed to rent/use for roasting and packing the coffee (not open to public) and what type of licenses I would need to do so.

Thanks to everyone who will be helping

This is a link to a company that provides consulting services to coffee roasting start-ups:

https://www.kaffeemacher.ch/beratung...eeroestereien/

The old picks and shovels strategy - probably the best approach at this stage.