Domestic Driving Hours across Europe

Planning on operating a service that falls under Domestic Driving hours. While I am fine for GB. I anyone know where I can find the rules on Domestic Driving hours in France, Italy, Spain, Germany , Netherlands, Czech Republic.

I plan on sticking to EU rules anyway. But it’s good to know domestic as that what applies to me.
Also are there any examples of domestic rules being stricter or different enough that I could break them if I just followed EU rules.

While I am not required at least In the UK to use a tachograph is it still reconmended I use one or just use a log book.?