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Atlas: Dropbox’s managed service platform
https://dropbox.tech/infrastructure/atlas--our-journey-from-a-python-monolith-to-a-managed-platform
Dropbox now serves more than 700 million users who create 300,000 requests per second. They rewrote some of their monolithic Python code that didn’t scale well. They created Atlas, a Service Oriented Architecture platform.
Before the rewrite, The majority of Dropbox’s server-side code was a monolithic Python monorepo. The main gripe with the current architecture was that there wasn’t really way to create independently operating code. Everything was shared in the monorepo. Code was too dependent on other code in the code base and changes were fragile.
The 2020 rewrite changed the monorepo into a serverless platform, changing the architecture and operations.