Formualizer – Arrow-backed spreadsheet engine, 320 functions,PyO3+WASM
Finally: XLOOKUP, FILTER, dynamic arrays in Python—openpyxl can't, xlcalc won't.
BustAPI is a High-Performance Python Web Framework.
Python syntax on Rust Actix core reaches 20k RPS, but Mojo and uv already address Python speed.
Python backend developers, API builders, performance-conscious teams
FastAPI · Mojo · Go web frameworks
What is it? BustAPI is a Python web framework built on a Rust (Actix-Web) core. It uses PyO3 to handle routing and JSON serialization in Rust, offering performance that rivals Go/Node while keeping Python’s syntax.
The Highlights:
Speed: Reaches 100k+ RPS on Linux (multiprocessing).
Syntax: Uses standard decorators like @app.get("/").
Built-ins: Argon2, JWT, and CSRF protection included.
Why it matters: It aims to eliminate the "Python tax" by moving the heavy lifting to a memory-safe Rust runtime.
Mirror Link: https://github.com/RUSTxPY/BustAPIThe original project was gaining significant momentum before the lock. We are hosting the code here to ensure the community can continue testing and contributing while the author resolves the GitHub status.
Finally: XLOOKUP, FILTER, dynamic arrays in Python—openpyxl can't, xlcalc won't.
Python FFI bridge via PyO3 is clever, but tool-calling frameworks are crowded.
Rust-powered token counting for FastAPI, but rate limiting is a solved problem.
Checkpoint-based recovery beats determinism constraints; embed without separate server, unlike Temporal/Airflow.
Rust asyncio event loop targeting Windows where uvloop doesn't run.
40x faster than openpyxl with zero-copy Arrow integration for DataFrame workflows.