More devices are sold every year than human beings are living on Earth. Decarbonisation is a must to tackle the environmental crisis and comply with the global warming objective of the Paris Agreement. Therefore, we need to create effective market ecosystems capable of reusing ICT devices, extending their lifespan for new uses, instead of always manufacturing new ones, through reuse, repair, and ensure final recycling in a sustainable way. In collaboration with the Obada.io organization and the University of Nevada-Reno in USA, the NGI eReuse-Ledger testbed is a permissioned distributed ledger to support experimentation about device traceability.