Distribution system operators (DSOs) in the low voltage (LV) network face major difficulties in maintaining adequate voltage conditions due to the increasing number of variable energy generation/consumption devices such as solar power plants, heat pumps and electric vehicles (or charging stations for electric vehicles). In the past, such problems have been solved by upgrading the grid, but as this approach is often economically inefficient, solutions are mainly sought in so-called "smart" grids, where these devices would adapt their mode of operation (hence "flexibility") according to the current grid situation, thus contributing to the stability of the low voltage grid situation. The successful integration of such a system requires the creation of a flexibility market, bringing together successful flexibility providers, aggregators and distribution system operators. These challenges will be explored within the European project STREAM, which brings together partners from different countries and sectors with the common goal of building an innovative and robust resilience ecosystem on the LV grid. The project will develop new business models based on local flexibility markets. To achieve this goal, STREAM will involve all relevant actors, from end-users, energy communities to flexibility service providers, market operators, distribution and transmission network operators, complemented by technology and research partners. The latter will contribute both technology and know-how to develop STREAM tools that will enable the realisation of the project ecosystem. The project aims to stimulate the deployment of the different flexibility services offered by consumers or end-users at the LV level, by network operators, and by the local and wholesale market, enabling them to develop new business models and markets to maximise technical and commercial efficiency.