// @arthurfiorette

Arthur Fiorette.

I'm a senior software developer from Brazil focused on open source and developer tools: build and deploy pipelines, type-safe APIs, code generators and, lately, agent harnesses. Most of my work is TypeScript, with Rust where it pays off.

open source

4.6k GitHub stars~7.2M npm downloads / month

  • ECMAScript Try Operator

    A proposal to bring ergonomic, inline error handling to JavaScript through a new try operator that never throws and always returns a Result.

    2k stars
  • TinyLibs

    Collection of Utility Libraries for javascript.

    74 stars~3.6M downloads / mo
  • Prisma Json Types Generator

    Type safe Postgres Json for prisma schemas.

    568 stars~1.8M downloads / mo
  • Axios Cache Interceptor

    Small and efficient cache interceptor for axios.

    817 stars~1.2M downloads / mo
  • Kita/Html

    The fastest JSX runtime to generate HTML strings.

    797 stars~611.9k downloads / mo
  • Kita

    Type-safe router for Fastify, built on the TypeScript compiler API.

    350 stars~4.1k downloads / mo

a bit of history

I started coding in late 2018 with Java, writing Minecraft plugins. Open source came soon after and never left: axios-cache-interceptor, prisma-json-types-generator and the Kita ecosystem all grew out of problems I hit at work, and today the packages I publish see around 10M npm downloads a month. My first job came in 2021, building web apps and deployment automation for a software house, then two years on the backend of a feed management system for cattle farms. From 2024 to 2026 I was at Zephyr Cloud, working on bundler plugins, a multi-cloud edge runtime, billing and the infrastructure of an AI chat platform.