Hi Dev.to community! 👋 As developers, we all know the "tab fatigue." Between documentation, Slack, Jira, music, and monitoring tools, our browsers often look like a graveyard of forgotten resources. Context switching is real, and it’s a productivity killer. I decided to tackle this by building Mutliple.live a customizable digital workspace canvas. The Problem Traditional bookmark bars or start pages are static. I wanted something living. A place where I could see my Kanban board, my music player, my notes, and my research tools all on one screen. The Solution Mutliple allows you to drag and drop widgets onto a canvas. But as I was building it, I realized one thing: I can't build every widget that every developer needs. So, I built the Developer Studio. Technical Challenge: A Secure Sandbox for React Widgets The coolest part of the project is that users can actually write their own React/TSX widgets directly in the browser.…