During this hands-on tutorial, we will examine the driving factors behind the growing popularity of open-source integrated circuit (IC) design tools. Additionally, we will explore the current state of these tools and the recently introduced open-source process design kits. We will present a meticulously selected collection of electronic design automation (EDA) tools and discuss their utilization in a mixed-signal circuit design flow. Furthermore, we will highlight recent advancements that have been made possible through the collaborative nature of open-source projects. A few live, interactive demos will be performed (analog schematics and layout, DRC, LVS, PEX, digital RTL2GDS), and everyone who brings a notebook with access to the internet and a browser will be able to follow along using a provided virtual EDA machine.