In summary, this demonstration of a collision interaction gate represents the first computing device operated by LMs. A new automatic technique for the easy and reproducible synthesis of LMs enhances the reliability of gate operations. The novel electromagnetic synchronisation of the LM collisions was made possible by the development of a new magnetic hybrid LM, with a coating composed of nickel and UHDPE, used in conjunction with electromagnets for breaking, holding, and synchronised release of the LMs. This collision gate would operate as a 1-bit half-adder, once the sum outputs are combined. A design schematic for a 1-bit full-adder was proposed.