Tools

Stack

Technologies I reach for, and what I use them for.

Languages

TypeScript: Main language: Localesy, a platform under NDA, an open-source crypto UI kit and this site.
JavaScript: Most of my earlier public projects, from Ember apps to React and RxJS experiments.

React: Localesy, a customer dashboard and admin panel under NDA, an open-source crypto swap widget and several open-source apps.
React Native: 15 merged pull requests to React Native Paper, Callstack's Material Design library.
Expo: My default way to build and ship React Native apps; I use it a lot.
Next.js: Two production apps under NDA on the App Router, Localesy's landing page and docs site, and a playground for an embeddable widget.
TanStack Router: Type-safe routing in my own tools, including a private admin panel built on TanStack Start.
Tailwind CSS: Prefixed Tailwind build for an embeddable crypto widget, and this site.
Astro: This site: pages render on the server and only two React islands hydrate.

Design systems and theming: Material You theming for React Native Paper, typed themes in react-theme-provider, and an open-source crypto UI kit.
Developer experience: Moved a monorepo under NDA to TypeScript 7, oxlint and oxfmt (typecheck in about 3 seconds) with automated release PRs; migrated React Native Paper's docs to Docusaurus and set up a client's project docs on it.
App architecture: The widgets architecture and shared packages of a two-app monorepo under NDA; a module-federated React Native app and a 60-item performance and code quality audit at Callstack.
Team leadership and mentoring: Led teams for enterprise clients at Callstack, mentored developers and ran knowledge-sharing workshops.
Automated testing: Playwright end-to-end suites for Localesy and a platform under NDA, unit tests for its data layer, automated application tests at Selleo, and a contribution to a community Ember testing guide.

tRPC: The API layer of Localesy and of a multi-tenant platform under NDA, where I strengthened authorization across its procedures.
Postgres: The database behind Localesy and the platform under NDA.
Drizzle: Typed schemas, migrations and queries for Localesy and the platform under NDA.
BigQuery: A typed query layer with per-query cache tiers for the analytics and reports of a platform under NDA.
REST APIs and integrations: A generated SDK with response validation for an internal API under NDA, plus RESTful APIs and integrations at Selleo and for freelance clients.
AWS and Firebase: Cloud solutions and database management for freelance clients.

Bun: The Localesy CLI, a pnpm to Bun migration of a monorepo under NDA, build tooling for an open-source UI kit, and this site.
Vite: A playground for an embeddable crypto swap widget, and Vite-based React starters.
Cloudflare Workers: Hosts this site: static assets plus one Worker endpoint for the ask box.
TypeSafe Jev: The AI model behind the ask box here, and a shadow judge in a coding-agent benchmark under NDA: it returns typed yes/no and choice judgments instead of generated text.

Trigger.dev: Runs Localesy's background jobs, which I moved there from SST; my go-to for queues and schedules.
PostHog: Product metrics for Localesy; my go-to for product analytics.
Sentry: Monitors Localesy and the platform under NDA, including its authorization violations; my go-to for error and performance tracking.
Supabase: My go-to for Postgres, auth and storage when a product needs a backend fast; I also have a documentation fix merged upstream.

Claude Code: My daily coding agent; this site was built with it, and I benchmark its repository setup for a team under NDA.
Conductor: Runs a team of coding agents side by side, each in its own isolated workspace.
Zed: My editor: fast, quiet, and good at working next to agents.
Zen: My browser: a calmer Firefox with workspaces and vertical tabs.

Technologies I used for years and no longer reach for first.

Ember.js: Community projects and a testing guide contribution from 2017 to 2020, and the Recipe Book app.