This white paper discusses an integrated approach to complexity research within the EU, emphasizing the importance of governance, policy, and standards in effectively managing complex societal challenges. It advocates for the creation of a 'people’s toolkit' that combines computational socio-geonomics with modern societal modeling techniques, aiming to enhance our understanding of human behavior within ecological contexts. The document argues that addressing complexity is crucial for sustainable development and proposes that local actions can catalyze broader systemic changes.