Lumen UI
Built Lumen UI: shared design foundations for Astro, React, Web Components, and native interfaces, with accessible primitives, product layouts, Figma, and AI tooling.
- React.js
- Astro
- TypeScript
Independent making / Side projects
Built for the love of it.
Useful products. Better tools. Room to explore. These are the things I build beyond client work, turning curiosity into something other people can use.
- Independent builds
- 14Projects & experiments
- Tools of the trade
- 137Technologies explored
- Experience behind it
- 12+Years in engineering
14 project stories
The work behind the logos.
Every project has a deeper story about the problem, the decisions, and the system behind the finished work.
PostLens
Built an iPhone-first private visual content studio for selecting strong photos, applying transparent on-device enhancements, composing layouts, and exporting social-ready work.
- Astro
- TypeScript
- iOS
Between Contractions
Built a calm, privacy-first contraction timer for the web, iOS, Android, watches, widgets, and optional real-time partner coordination.
- Astro
- TypeScript
- Turborepo
RoadScore
Built a bilingual, offline road-trip card game that turns one passenger-operated phone into a shared scoreboard, deck library, and private trip journal.
- Astro
- TypeScript
- React Native
eslint-config-basic
Built a DX-first ESLint toolkit for JavaScript and TypeScript teams that want stronger defaults, less setup friction, and cleaner reviews.
- React.js
- Next.js
- Astro
Astro Doctor
Built a deterministic Astro health-check toolkit with a CLI, ESLint plugin, editor extension, GitHub Action, docs site, and installable agent skills.
- Astro
- TypeScript
- Node.js
@santi020k/og
Built a renderer-agnostic Open Graph image pipeline with deterministic caching, safe cleanup, parallel generation, and CI verification while leaving every project's visual system in its own hands.
- Next.js
- Astro
- TypeScript
quality
Built a fast, predictable code-quality CLI and GitHub Action that detects and coordinates native analyzers across Rust, Swift, Android, Kotlin, JavaScript, and Astro repositories.
- Astro
- TypeScript
- Node.js
Santi020k Theme
Built a theme family for VS Code, Zed, Codex, Chrome, terminals, Raycast, Slack, JetBrains, and Xcode, with shared tokens and a unified product website.
- Astro
- Node.js
- Vitest
Dep Beacon
Built and published dependency tools for VS Code and Zed that bring npm dependency status, update targets, pnpm workspace catalog context, and OSV security signals into package manifests.
- Astro
- TypeScript
- Node.js
Coolstead
Built a native macOS menu-bar app that monitors thermal conditions and applies a gradual, safety-bounded fan curve without replacing macOS thermal protection.
- Turborepo
- AppKit
- Hardware Monitoring
Aaronmgz
Built a growing family web platform with a nautical personal site, public message board, baby-shower experience, admin tools, and a shared Cloudflare API.
- React.js
- Next.js
- Astro
eslint-config-santi020k
Turned internal linting conventions into a reusable package that standardized React and TypeScript projects and paved the way for @santi020k/eslint-config-basic.
- React.js
- Next.js
- Astro
santi020k auth
Built an open-source authentication policy for single-owner and multi-user Hono applications on Cloudflare Workers and D1, with email codes, passkeys, isolated identity state, and explicit production-readiness gates.
- Astro
- TypeScript
- Playwright
Technology map
The stack I choose when curiosity leads.
Trusted foundations and tools I’m actively exploring across personal projects, open source, developer experience, and testing.
Stack snapshot
Technologies from side projects and open-source contributions, ordered by interest.
- Highlighted
- 18
- Full index
- 137
Top of mind
The tools I’m most interested in reaching for.
In rotation
Supporting tools across delivery, testing, and DX.