Sean McCauley
I am a partner at EY-Parthenon, focused on the intersection of technology, transactions, and transformation. This is the home to my side projects — personal apps built for fun, learning, and the occasional useful thing.
These are my own observations and tinkerings; they don’t necessarily reflect the views of my firm.
Projects
Token Estimator
Models the cost of replacing manual workflows with AI. Translates token spend into annual run rate, FTE-equivalent labor displaced, and ROI multiple, with cited rationale and research.
Burnline
macOS menu bar app showing where you should be in your Claude weekly usage window, next to where you actually are. Keeps the history Claude Code deletes after 30 days and notifies you at thresholds you set. No telemetry; the only network call is an update check.
TicketTrek
Concert wishlist and trip planning app. Track shows you want to see, plan the logistics, and build out a full trip itinerary.
Metra Times
Metra Times is a fast, clean way to see when your next Metra train leaves: a live departure board for every Metra line in the Chicago region.
TodoNotes
Task management app with a GTD-style workflow. Runs on web, macOS, and iOS — all sharing the same backend.
Expense Tracker
Expense splitting app. Log shared costs, track who paid what, and settle up.
McHenry Dashboard
Real-time water level and weather dashboard for the McHenry area. Fox River gauge readings with flood stage tracking, NWS forecasts, and Fox Waterway zone status.
Writing
