The way I interpret it, in simplified form, is that I, as the British citizen, need to move my home and mailing address to let's say, Ireland, find work there preferably full-time PAYE employment, paying my local income tax and national insurance, and live there in that home and attending that work for at least 6 months, preferably more.

A quick search on the internet yesterday revealed that several jobs that I'm qualified to do are being advertised in Ireland right now.