Pat McDermott

I build the kind of software that usually costs a subscription, and I give it away. Crypto microstructure terminals, SEC filing pipelines, agent harnesses. Open source, local-first, runs on your machine.

Philadelphia. Mostly C++ and Python, Qt on the desktop, FastAPI behind it. Most things start as a prototype and get rebuilt properly once they prove out.

Sentinel workstation: BTC-USD order-flow heatmap with candles, liquidity slider and watchlist
Sentinel, Oct 2026. BTC-USD order flow on the 1m. Asks above in orange, bids below in blue, brightness is resting size.about Sentinel ->

Work

all repos

Writing

Nothing published yet. The first posts are about Sentinel's renderer and parsing SEC Form 4 for free.

all writing

Finds

A log of things worth pointing at. Nothing logged yet.

all finds

Now

Pushing Sentinel's server and recorder. Rebuilding this site so it can hold writing. Working out what to charge for and what to keep giving away.

Connect

email
hello@lolcopeharder.com
github
pattty847
x
@lolcopeharder