The development of solid-state quantum emitters for practical quantum information technologies requires nanofabrication platforms that combine high precision with reproducible yield. Self-assembled semiconductor quantum dots (QDs) are among the most promising candidates due to their excellent optical properties. Yet, their inherently random spatial and spectral distribution poses a significant challenge for deterministic and scalable device integration using conventional lithography techniques. In this talk, I present a flexible and deterministic nanofabrication approach that combines low-temperature cathodoluminescence spectroscopy with high-resolution electron beam lithography. This iEBL technique enables highly precise positioning of single QDs within complex photonic nanostructures to maximize the device performance for instance in terms of the photon extraction efficiency and the Purcell effect. I will discuss the iEBL process and its role as an advanced technology platform for single-emitter devices, emphasizing its capability for scalable, high-yield fabrication.