Tools I’ve built.
Alongside client work, I build my own software — usually because I wanted it to exist and couldn’t find a version I trusted. Each one is held to the same bar: genuinely useful, honest about what it does, and careful with your data.
Cairn
The early-retirement planner for the years before 59½. It maps the bridge-years access rules most tools skip — Rule of 55, 72(t)/SEPP, the Roth-conversion ladder, the ACA subsidy cliff — and stress-tests the plan with Monte Carlo and a 1928–2025 historical backtest. Every number sourced to the IRS/CMS; runs locally, nothing uploaded.
Jimothy
A single-manager project-management and “scrum master” tool that keeps your whole portfolio prioritized across today, this week, month, quarter, and year — with realistic forecasts, two-way calendar sync, and a coach, not a nag. Runs locally; your data stays yours.
CNC design copilot
Describe a piece in plain English — flat-pack furniture, a solid-hardwood chair or table, even a whole electric guitar — and get back a checked design and machine-ready cut files for a desktop CNC router. Made-to-measure, with the geometry, structure, joint-fit, and cut-safety troubleshooting done for you, and honest about what only a real test cut can confirm.
Climbing route-mapper
A computer-vision tool that turns a photo of a wall into a mapped, shareable climbing route — making it easier to record and find lines at the crag. Early days; more as it comes together.
Outdoor-spot finder
A finder for the overlooked outdoor places — quiet trailheads, swimming holes, and viewpoints that don’t show up on the usual lists. Still taking shape.
These are independent projects at different stages. Curious about one, or have something you wish existed? Get in touch — I like hearing what people are trying to solve.