Microsecond transforms: Building a fast sandbox for user code

The article explores the challenges and solutions in safely sandboxing user code for high-performance applications at Sequin. It details the journey of evaluating various sandboxing approaches, such as VM-based, embedded languages, and custom interpreters, to meet the requirements of performance, security, and usability. Ultimately, Sequin opted for a 'Mini-Elixir' approach for its unmatched speed and simplicity, with plans to integrate further security measures for multi-tenant environments.

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