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Hey, I'm Tyrell

Wealth management by day; I build tax-aware financial tools, privacy-first apps, games, and homelab software after hours.

I like projects with clear models, local-first defaults, and enough polish that someone besides me can actually use them. Most of my work is in Swift/SwiftUI, TypeScript, and Python, with Cloudflare Workers & Durable Objects, Supabase, Docker, and the occasional WebAssembly rabbit hole.

Open-source projects

Project What it does
Enhanced Direct Indexing Calculator · Live demo Advisor-focused calculator for long/short tax-loss harvesting, state taxes, and exit and estate scenarios.
UniFiLanCast Real-time UniFi network map with live topology, client traffic, VLAN views, alerts, history, mock mode, and Docker deployment.
Kometa Preview Studio Local-first preview and configuration studio for Kometa and Plex overlays without writing to the live library.
Ecosystem Simulator Browser-based artificial-life simulation with evolving creatures, procedural terrain, and emergent behavior.
YTTV Auto-Mute Experimental userscript that detects YouTube TV ad breaks from closed-caption and playback signals.

Shipped products

  • Banked — an event-sourced dice game with local and online multiplayer, bots, undo/redo, and host handoff. Built on Cloudflare Durable Objects; source is private.
  • pict. — a native iOS puzzle game with uniquely generated puzzles, cross-device sync, leaderboards, and anti-cheat.
  • Idle Hedge Fund — a finance idle game whose deterministic Swift engine runs in both SwiftUI and the browser through WebAssembly.

I'm also building Screenshot Inbox, an on-device iOS workflow that uses OCR to turn a screenshot pile into suggested actions while keeping the data local.

What I care about

  • Privacy-first and local-first product choices
  • Deterministic systems that are easy to test and explain
  • Turning messy financial or operational data into useful interfaces
  • Shipping projects that are practical, playful, or ideally both

Want to compare notes on tax-aware software, privacy-first apps, or homelab tooling? Connect with me on LinkedIn.

About

Profile README for Tyrell Marchant: tax-aware, privacy-first apps, games, and homelab tools.

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