All IT solutions consist of elements that have been tested somewhere in the world, just not in a single solution in that particular context. And thus IT solutions fail and overrun their budgets on a grand scale. Does anyone have a list of these elements of the NI-RoI border tech solution that Brexiteers love to cite, complete with their contexts? NB. I have experience of implementing IT solutions, from design through to execution and maintenance. Even with the small scale projects I've worked on, that paragraph above rings alarm bells for its insouciance.
And BTW, when you talk of betrayal, remember that Brexiteers initiated this. The EU didn't push the UK into this problem. Remainers didn't push the UK into this problem. Leavers like yourself did. And if you don't like taking responsibility, then blame the leaders whose BS you continue to push like above. Under 3 weeks until no deal.
More on Lars Karlsson, the expert quoted in PFH's article, on this subject.
Ouch. My prediction: take the estimated time and cost of the solution, at least triple the cost and time, and you might have something that might be able to limp along with numerous holes and patches. A more realistic estimate is at least 5x both. An equally realistic estimate is 5x both and it still doesn't work. Based on previous government experience with tech solutions.