Optimizing Mushroom Cultivation for SMEs: Development of a Frugal Innovation-Based IoT-Enabled Smart Kumbung SystemRenita Kawuryan, Sari Pratiwi, Tandi Kandang, Lintang Putra Anthama and Alifia NurramadaniE3S Web Conf., 622 (2025) 03011DOI: https://doi.org/10.1051/e3sconf/202562203011