This talk introduces ElemRV, a lightweight open-source RISC-V microcontroller designed for accessibility and adaptability. We'll trace the project's origins and its first tape-outs using IHP's Open PDK, demonstrating how open-source silicon can move from concept to fabrication. The presentation covers ElemRV's architecture and key components, highlighting the design choices that shaped the microcontroller. We'll walk through the complete ASIC flow - from RTL source code to tape-out-ready GDSII files - demystifying the process of creating custom silicon with open-source tools. The session concludes with the roadmap for future tape-outs and planned enhancements, inviting community collaboration on this libre hardware project.