CECAM-IRL is an Irish node of an international consortium that uses particle-based computer simulation to study diverse fields like spintronics, advanced materials, and nanobiology. It brings together Irish researchers in this area and connects them to European partners. Through workshops and tutorials, it aims to increase the impact of Irish simulation research, enhance training, and provide guidance to experimentalists. The goals within specific institutions include mesoscale astrophysics simulations at DIAS, large-scale computing at ICHEC, and applications in areas like electron transport, materials development, and thin films at QUB, TCD, Tyndall-UCC, and UCD.