flexatone.net

works of Christopher Ariza

Code

Having programmed in Python since 2000, I have created and contributed to numerous open-source tools for both music and data processing. More recently I have been using Rust for high-performance cybersecurity tools.

Featured Code

Fetter IO is web-based platform for tracking Python packages and vulnerabilities.

  • Fetter IO
    Python Supply-Chain Omniscience.
    2025 to present
    Rust, Axum, TypeScript, NextJS, React, Tailwind, Caddy, PostgreSQL, Terraform, AWS: EC2, RDS, CloudFront, WAF

My passion for writing fast and maintainable Python DataFrame code led to the creation of StaticFrame, an immutable alternative to Pandas.

All Code

  • Shuntly
    A lightweight wiretap for LLM SDKs. Capture all requests and responses with a single line of code.
    2026 to present
    Python, TypeScript, Anthropic SDK, OpenAI SDK, Google GenAI SDK, LiteLLM, Ollama, Mozilla any-llm, pi-ai
  • conditional-futures
    Make multi-threaded concurrency backward- and forward-compatible for the free-threaded future of Python.
    2025 to present
    Python
  • Fetter IO
    Python Supply-Chain Omniscience.
    2025 to present
    Rust, Axum, TypeScript, NextJS, React, Tailwind, Caddy, PostgreSQL, Terraform, AWS: EC2, RDS, CloudFront, WAF
  • Assistant Research
    Daily LLM process to derive a profile from GitHub activity, collect and rate articles based on relevance to that profile, and generate a daily digest posted as an issue.
    2026 to present
    Anthropic API, GitHub API, Python
  • xensieve
    Rust-based implementation of the Xenakis sieve.
    2024 to present
    Rust, PyO3 Maturin
  • Fetter
    System-wide Python package discovery, validation, and allow-listing.
    2024 to present
    Rust, OSV DB, PyO3 Maturin
  • StaticFrame
    Immutable and statically-typeable DataFrames with runtime type and data validation.
    2018 to present
    Python, NumPy
  • StaticFrame API Search Server
    Search and explore the StaticFrame API with MCP and OpenAPI servers.
    2023 to present
    TypeScript, React, NextJS, Tailwind, TypeScript MCP SDK, AWS: Amplify
  • ArrayKit
    Python C Extensions for StaticFrame.
    2020 to present
    C, NumPy C API, CPython API, Python, NumPy
  • FrameFixtures
    Use compact expressions to create diverse, deterministic DataFrame fixtures with StaticFrame.
    2020 to present
    Python, NumPy
  • function-pipe
    Tools for extended function composition and pipelines in Python.
    2014 to 2017
    Python
  • music21
    A Toolkit for Computer-Aided Musical Analysis and Computational Musicology.
    2009 to 2012
    Python, MusicXML, MIDI

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