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GeezerVison is showing github.com โ€” leonardomso - Overview

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๐Ÿงฑ
Building.

Leonardo Maldonado leonardomso

๐Ÿงฑ
Building.
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Software engineer. I ship things.
3.2k followers ยท 318 following
  • Valencia, Spain
  • 13:12 (UTC +01:00)
  • http://leonardomso.com/
  • @leonardomso
  • in/leonardomso

Achievements

Achievement: Pull Sharkx4Achievement: QuickdrawAchievement: Pair Extraordinairex3Achievement: YOLOAchievement: Arctic Code Vault ContributorAchievement: Starstruckx4

Achievements

Achievement: Pull Sharkx4Achievement: QuickdrawAchievement: Pair Extraordinairex3Achievement: YOLOAchievement: Arctic Code Vault ContributorAchievement: Starstruckx4

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leonardomso/README.md

Software engineer with 7+ years building for the web, from two-person startups to international product companies. I work across JavaScript, TypeScript, Go, and Rust.

For four and a half years I was the only frontend engineer behind Spaceship's domain search at Namecheap, on a platform that sold more than 3 million domains. I've also written 100+ articles on JavaScript, TypeScript, React, and Node.js for LogRocket and Progress/Telerik.

Currently building

Luca โ€” Online coaches lose clients for one reason: they can't reply fast enough. Luca watches your inbox across Telegram, Instagram, Messenger, and WhatsApp, drafts each reply the way you'd write it, and books the call. You approve every draft before it goes out, so you always decide what gets sent.

Open source

  • 33 JavaScript Concepts โ€” 33 concepts every JavaScript developer should know. 66K+ stars, translated into 40+ languages by the community.
  • Strait โ€” Background jobs and multi-step workflows that run on the Postgres database you already have, instead of Redis or a separate queue. Reliable job queues, workflows you can pause for manual approval, and a clear view of everything running. Written in Go, self-hostable, Apache-2.0, with libraries for TypeScript, Python, Go, Ruby, and Rust. strait.dev
  • gone โ€” A dead-link checker in Go, built to be genuinely fast. Concurrent, with a TUI, and works in CI.
  • betterhook โ€” A git hooks manager in Rust that handles worktrees and parallel agents properly. DAG scheduling, blake3 caching, Tokio under the hood.
  • rust-skills โ€” 179 rules that keep coding agents from guessing when they write Rust.

Products

  • Shopwyse โ€” An ERP for retailers that brings POS, inventory, CRM, and financial reporting into one place. Built with TanStack Start, Elysia, and PostgreSQL.
  • Polyglot โ€” A writing assistant that interviews you first, then drafts content the way you'd actually write it.
  • Otis Finance โ€” A stock market API for real-time prices, SEC filings, earnings, and financials.

Writing

  • LogRocket โ€” React, TypeScript, and frontend architecture.
  • Progress / Telerik โ€” React, Node.js, and modern JavaScript.

Elsewhere

Website ยท LinkedIn ยท X

Pinned Loading

  1. 33-js-concepts 33-js-concepts Public

    ๐Ÿ“œ 33 JavaScript concepts every developer should know.

    JavaScript 66.5k 9.1k

  2. gone gone Public

    Fast, concurrent dead link detector for files.

    Go 1

  3. rust-skills rust-skills Public

    A collection of 265 rules across 26 categories that AI coding agents can use to write idiomatic, fast, and safe Rust.

    Python 704 80

  4. betterhook betterhook Public

    Fast, worktree-native git hooks manager built for parallel AI coding agents.

    Rust 2

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