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Gantry: Slack’s Fast-booting Frontend Framework | Engineering at Slack

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Our quest to streamline product development, improve productivity, and automatically adopt best performance practices on the frontend. SEARCH LATEST POSTS ARCHIVES At any given time, Slack has many product teams working on different features. This allows us to build in parallel and quickly release new features reliably. But it also means the architecture of our applications can differ. And it’s not always easy to share the knowledge gained and the tough lessons learned across teams. An important lesson we’ve learned over the last five years of developing Slack is to align on both what we create and how we create it. Early in our rewrite of the Slack desktop application, we came across an opportunity to do just that: We’d prototyped a new boot flow capable of launching our client much more quickly than before and realized that if we could create a framework from this proof-of-concept that met the booting requirements of all Slack product experiences, we could align teams to better strea

Gantry: Slack’s Fast-booting Frontend Framework | Engineering at Slack Gantry: Slack’s Fast-booting Frontend Framework – Engineering at Slack Skip to main content October 23, 2019 Updated: June 18, 2020 8 min read Gantry: Slack’s Fast-booting Frontend Framework Our quest to streamline product development, improve productivity, and automatically adopt best performance practices on the frontend. Anuj Nair Staff Software Engineer Photo by SpaceX on Unsplash Search Latest Posts June 11, 2026 12 min read Agentic Testing: Where Agents Fit in the E2E Testing Stack May 28, 2026 17 min read Slack

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