Dan Brandt

Your app.
Built in days.

Web apps, mobile apps, automation systems.
You get a working product, not a mockup.

Kansas City, KS · Available for contract work

Get in touch See my work ↓

Days to ship

517

Commits / week

Apps shipped

< 14

Days avg

What I’ve Built

★ CLIENT PROJECT

Bid Tracker

Construction bid management, idea to production

6 days

Problem: A contractor was drowning in spreadsheets — bids scattered everywhere, costs slipping through the cracks.

What I built: Full web app with photo uploads, competitive bid comparison, admin dashboard, and a Google Sheets backend so the client manages their own data without learning new tools.

Shipped in 6 days. In daily use.

Next.jsGoogle Sheets APIGoogle DriveVercel

View live app →

For you: This is what I do for clients. Your project gets the same speed and attention.

NinKeys

The only modern dual-swipe keyboard for iOS

6 days

Challenge: A beloved iOS keyboard was abandoned years ago — no source code, no documentation, nothing.

What I did: Reverse-engineered the original from ARM binaries. Built a custom C++ prediction engine from scratch. 517 commits, 9,500 lines of production code in one week.

250x faster than v1. 99.5% word accuracy. Features Google Keyboard doesn't have.

SwiftC++Metal GPUiOS

For you: If I can reverse-engineer an abandoned app and beat it in a week, your clearly-scoped project is a sure thing.

HeyClaude

Voice-controlled AI assistant for iOS + Apple Watch

10 days

Challenge: I manage two AI coding agents across two machines. Needed to monitor both and send commands from my wrist.

What I did: Native iOS/watchOS app with voice commands, live terminal streaming, three-way bridge chat, and push notifications.

Full mobile + wearable app with real-time WebSocket streaming.

SwiftUIwatchOSWebSocketDeepgram STTAPNs

For you: Real-time apps, push notifications, voice interfaces, cross-device sync — the features modern products need.

Vault Daemon

Personal automation system in Rust

Ongoing

Challenge: My productivity system ran on 11 separate scripts and services — fragile and impossible to maintain.

What I did: One Rust daemon: 10 cron timers, 7 file watchers, event-sourced architecture, Google Calendar sync, and self-healing diagnostics.

11 services → 1 process. Runs 24/7 unattended.

RustSQLiteTokioEvent Sourcing

For you: APIs, data pipelines, cron jobs, background workers — I build the backend that keeps your product running.

About Me

I’m Dan — a builder in Kansas City who turns ideas into working software fast. I’ve shipped iOS apps, web apps, Rust daemons, and an Apple Watch assistant, most in under two weeks. I care about how things feel to use, not just how they work under the hood.

How I Work

Day 1

We talk

30-minute call. I learn your problem. You get a clear scope and timeline before I write a single line of code.

Days 2-7

I build, you watch

Daily updates with working demos you can click. Feedback loops measured in hours, not weeks.

Week 2

You ship

Deployed, documented, yours. Hand it to a full-time team or keep iterating with me.

Tell me what you’re building.

Email me your idea. I reply within 24 hours with a scope and timeline.

Typical projects ship in 1-2 weeks.

Email me your idea

dan@dbdoo.dev

Your app.Built in days.