TLDR Dev · ARTICLES & TUTORIALS

WHY WE MIGRATED FROM PYTHON TO NODE.JS

blog.yakkomajuri.com10 min read

Summary from the TLDR Dev newsletter

Skald rewrote its backend from Python (Django) to Node.js a week after launching to address scaling concerns, primarily due to the complexities and limitations of Python's asynchronous capabilities for LLM interactions. Python's async support was unintuitive compared to Node.js. The migration took three days, and it resulted in a roughly threefold increase in throughput and a more unified codebase, though it required building more utilities from scratch and losing the Python ecosystem's ML focus.