The viticultural activity plays a key role in the SUDOE area, contributing to the region’s cultural identity, local economy, landscape, and tourist appeal. Its preservation is fundamental to the vitality of SUDOE’s rural zones. Research on viticulture adaptation to climate change emphasizes, besides the use of adapted varieties and changes in vine cultivation practices, the importance of soils. Therefore, our project’s goal is to implement practical, natural, and local solutions to amend vineyard soils with organic matter, aiming to increase their water retention capacity, fertility, and biodiversity, thereby strengthening the vineyards’ resistance to summer droughts. These amendments involve using biochar (vegetable carbon) derived from uprooted vine stocks, combined with compost and biostimulants. Despite the proven effectiveness of these solutions, their adoption in Europe is currently limited by the biochar production processes, which remain expensive and complex to implement. Therefore, this project proposes: (i) developing an economically and environmentally efficient mobile transformation pilot; (ii) testing it in various locations across the SUDOE region; and (iii) creating diagnoses and strategies for utilizing organic waste at a local scale, in order to further develop these solutions. This will enhance the sustainability of viticulture in the SUDOE region while valorizing local organic waste. This will benefit rural communities, agricultural advisory bodies, wine cooperatives, and farmers. Cross-border cooperation is necessary to adapt solutions to different environmental and socioeconomic contexts and promote their widespread adoption for a truly transformative effect. The innovation lies in the holistic approach to valorizing organic waste deposits and in developing low-cost mobile transformation processes.