The ECO-RELY project (Eco-Resilience: Rebuilding Communities through Green Sports and Financial Stability) aims to strengthen the professional competences of youth workers in integrating ecological sustainability, green sports methodologies, and crisis resilience strategies into their daily youth work practice. The project brings together 20 youth workers from four organisations in Bulgaria, Spain, Portugal (Madeira), and Ukraine to develop innovative tools and methods that help youth organisations remain environmentally conscious and financially stable even during times of crisis. From the perspective of youth work practice, the project addresses three gaps that the participating organisations identified through their direct experience and confirmed through European-level data. First, many youth workers lack practical methods for integrating environmental sustainability into their regular activities, despite climate change and environmental degradation being among the top concerns of young Europeans. Second, smaller youth organisations and community-based centres often have limited capacity to maintain their operations during crises, whether environmental, economic, or conflict-related. Third, structured opportunities for youth workers to exchange knowledge across different European contexts on community resilience and green practices remain insufficient, particularly for practitioners from outermost EU regions and conflict-affected countries. The project has four specific objectives. The first objective is to strengthen the professional competences of 20 youth workers in ecological sustainability, green sports, crisis resilience, and governance for youth work through three transnational professional development activities over 24 months. The second objective is to develop and share innovative youth work methods that combine environmental awareness with sport-based non-formal education and community rebuilding strategies, creating approaches that are new to the participating organisations and transferable to the wider youth work sector. The third objective is to create two open-access practical tools — the Eco-Resilience Guidebook and the Footura Digital Youth Portal — that provide youth organisations across Europe with ready-to-use resources for building environmental and crisis resilience into their programming. The fourth objective is to build a lasting cross-border professional network of youth workers and organisations committed to green, resilient, and inclusive youth work practice that continues to generate collaboration, mutual support, and knowledge sharing beyond the project's lifetime. Each partner contributes a distinct perspective that enriches the project's outcomes. Madeira brings internationally recognised ecological expertise and community-based environmental practices. Spain contributes its experience in municipal governance and how public structures can sustain youth work at the institutional level. Bulgaria offers its sport-based non-formal education methodology and its track record in using sport as a tool for social inclusion. Ukraine provides an irreplaceable first-hand perspective on resilience, community rebuilding, and maintaining youth services under the extreme conditions of armed conflict. The combination of these four perspectives produces a comprehensive framework for resilient and environmentally conscious youth work that none of the partners could develop independently.