Current materials for electronics are not sustainable due to their scarcity, toxicity and difficulty in recycling. However, they are necessary for robotics, which is becoming crucial for a thriving European economy. The EU-funded BioConTact project will address this problem by developing flexible, lightweight and scalable electrical conductors made from readily available materials. In these conductors, tunable biodegradability will be achieved through the materials' formulation. This technology will be essential for applications where long-term stability is crucial, such as robotic skin, or for environmental control of degradation, such as bioresorbable transient electronics.