MetSuperQ is a European metrology project for superconducting qubits. It develops measurement methods and tools needed to scale superconducting circuits toward practical, fault-tolerant quantum computers, including methods for characterizing qubit materials below 1 K, improving control and readout periphery, benchmarking one- and two-qubit gates, and establishing reproducible protocols through interlaboratory comparisons. I am contributing through the study of infrared radiation in quantum computing setups.