If i wanted to create a crypto gambling site would i need to get a license in the countries where my customers would come from?

as in if i targeted people in the UK would i need a UK license?

or is the crypto space exempt from the licensing as it's not "fiat"

and if a licence is needed would i need one for each country i want my site to be used in or just one in general?

i realize this might be a nooby question but i wanted to ask as i don't know much about the legal side of the gambling scene.