Here's my sidebar side project - it's a chrome extension called Tab Group Workspaces
I built Tab Group Workspaces for myself to solve the problem of too many tabs, and too many windows. When Google Chrome removed the scrollable tabs feature flag and my tabs and tab groups extended past my screen width, I simple couldn't find anything.
Tab Groups Workspaces solves that problem, making all your tabs - pinned, ungrouped, and grouped - easily searchable and managable in a sidebar.
But I got carried away, and added Workspaces as a way to organize and manage multiple browser windows full of multiple tabs and tab groups.
With Tab Groups Workspaces you can create workspaces for any context -- client work, personal, projects, travel, family — store and sync every tab and tab group and instantly switch between workspaces.
I think it's complete enough to launch (so it's live!) but I'd love feedback from early users.