In this episode of Micro-Frontends in the Trenches, I talk with Jeremy Colin (ex-Zalando) about the journey that led to Tailor.js and later Mosaic, two pioneering frameworks that shaped how micro-frontends are built at scale.Jeremy shares the technical challenges, trade-offs, and lessons learned while building these platforms, and why platform engineering is essential for making micro-frontends practical in real-world organizations.We dive into:- The story behind Tailor.js and its role in Zalando’s architecture.- How Mosaic evolved and why it mattered.- The hidden complexities of adopting micro-frontends.- Why platform engineering is key to simplifying and sustaining the practice.I highly encourage all of you to listen to this episode that is part of the micro-frontend history!