In this conversation, Bryan Green, a Senior Software Engineer at GridPoint, shares his innovative journey of transforming a 1930s rotary phone into a modern cell phone using Elixir and Nerves. He reveals the challenges of interpreting rotary dial signals and troubleshooting hardware with LED diagnostics. Bryan highlights the advantages of Nerves, like remote debugging and over-the-air updates, and explains how he utilized GenStateMachine to manage phone states. With advice for DIY enthusiasts, he inspires listeners to embrace the golden age of hardware tinkering.