.bit / .eth /.zil

Has anyone experience creating a blockchain non-ICANN website . . . ?

If, yes, was it a complex process . . . ?

Can one move ones website over 'as is', or does one have to rebuild it differently . . . ?

Any help/advice much appreciated

[NB Not 100% sure if this comes under 'General Free Software Talk' - if not, I apologise - thanks]