Ken Jones wrote: ... but also have some business ideas that I will explore more systematically.
Whatever those business ideas I'd also advise you to investigate how long it might take to get them operational here.
To operate legally as self-employed you will, a] in almost every case, need to set up a company and b] probably need a licence [or even several]. For some businesses the authorities may require that you have an office separate from your home with specific requirements regarding access etc., etc.
It's not necessarily complicated or difficult - my wife, with much help from our accountant, set up a "cottage industry" type business within a week but with some businesses it could take at least a year. [Regulations can be daft - my wife's business involves selling through local shops and on the Internet. She had to buy a till (registered at the tax office) because she could
sell directly to an end user and has to submit a monthly analysis print out even though they're always zero].
I'd advise you to find a good accountant at an early stage. Apart from that local Chambers of Commerce can be very useful and helpful sources of information.