N810 Studios

Software, trading research,and small tools.

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Selected work

Live

LifeJourney

A journal for iPhone, iPad and Mac that works out what moves your mood — sleep, exercise, HRV, weather, music. All of it stays on the device.

SwiftSwiftUIiOS App
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ElsewhereApp Store

Live

n810 Trading Plan (OVTLYR)

Entry and exit signals for the stocks OVTLYR covers. 81% of 780 trades were winners on tickers the system had never seen before.

ResearchData Science
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Regime, read from SPY breadth

Crisis
Normal
Extended
0%15%50%100%
81.41%per-trade win rate over 780 trades in unseen tickers

Live

Monopoly Board Probability

The 2022 simulation rebuilt as something you can click. Roll, and the board shows where you can land — with the odds solved exactly rather than sampled.

TypeScriptMarkov ChainsProbability
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Forty squares, solved rather than sampled: 11.5% of turns end in Jail, four times any other square on the board.

Personal Project

n810 GBoard

Gboard rebuilt with the iOS keyboard layout on a toggle. Installs next to the stock one, and ships as a patch rather than an APK.

AndroidAPK ModdingKotlin
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The full iOS layout, behind a runtime toggle — beside the stock keyboard, not instead of it.

Open Source

Obsidian Collapse Linked Mentions

An Obsidian plugin that keeps the linked mentions pane collapsed until you want it.

Obsidian Plugin
ElsewhereGitHub
Linked mentions12
Unlinked mentions4

Collapsed by default, so the note you opened is the thing you see.

All projects

Also here

Notes, tools, and the working out

Want to talk about any of it?

Questions, bug reports, and feature requests all land in the same inbox. I usually reply within a day or two.

nathan@n810studios.comGitHub