New trends such as teleworking and e-commerce, as well as the need for a further increase of digital tools in all sectors (i.e., health, education, transportation, farming, etc.) demanded by the Covid-19 pandemic, are pointing out once again digital territorial inequalities, supply-chain disruptions and deficiencies in economic opportunities that hamper resilience and prosperity of rural communities. Accessibility and connectivity are key issues to mitigate this erosion of socio-territorial cohesion. However, identifying a common solution for equipping rural communities with increased access to services, opportunities and adequate innovation ecosystems ensuring that no one left behind is a challenging task, mainly due to the diversity of challenges and needs of different locations. In this respect, XGain fosters a sustainable, balanced and inclusive development of rural, coastal and urban areas by facilitating access to relevant stakeholders, such as municipalities, policymakers, farmers, foresters and their associations, to a comprehensive inventory of smart XG, last-mile connectivity and edge computing solutions, and of related assessment methods. The XGain overall project objective is, to deliver a Knowledge Facilitation Tool, facilitating business model development, supporting decision-making in the selection of an ecosystem of technologies, consisting of connectivity options and edge processing solutions, by following a multi-actor and practitioner-oriented approach, and by coherently assessing their socio-economic and techno-environmental effects, aiming at: increasing systemic resilience and energy efficiency; contributing to climate mitigation; and reducing the digital divides between different types of citizens, farms, sectors and regions.