Whether it is weddings, Leinster rugby fixtures, Taylor Swift concerts, the Rose of Tralee, or Puck Fair, Rocket Pyrotechnics has served them all. A family-owned business based in Killala, Co Mayo, it has provided professional fireworks and special effects services in Ireland for over 25 years, employing three full-time and 15 freelance staff, including creative designers and highly trained specialised technicians who deliver synchronised performances with firings programmable to within one hundredth of a second. But the past decade has thrown up serious challenges for the firm – Brexit for one. The departure of the UK from the European Union…