Retail tech put to the test. Frédéric and Guillaume Halley, respectively Venture Capital Investor and Carrefour Franchisee, launched Sonorcap, an investment fund specialising in retail technology, with a unique approach: start-up solutions are tested in real-life conditions in stores, in parallel with investment. From AI applied to after-sales service to in-store computer vision, via a future project in CRM and digital loyalty, the two brothers are building a strategy around concrete use cases and international ambitions.