This workshop will explore Vertex, Outer Tracking, Wrappers and Particle Identification (PID) detector technologies for FCC-ee, in conjunction with Machine–Detector Interface (MDI) developments. It will highlight synergies with detector concepts from the Electron–Ion Collider (EIC) and discuss technologies emerging from several DRDs and the U.S. CPAD RDCs. The workshop will provide a cross-cutting perspective connecting detector R&D, Physics Performance, and Software Developments.