How much money do I need for option selling?

I'm quite interested in the realm of option selling, but I'm still a bit hazy on the financial requirements. Could you please clarify for me how much money do I actually need to get started in option selling? Is there a minimum investment required? And if so, how does this amount vary depending on the type of options I'm considering? Also, could you elaborate on any potential additional costs or expenses that I should be aware of before diving into this field? Your insights would be greatly appreciated.