Trading research

StratCraft

Self-hosted web app for testing stock trading strategies on historical data, comparing parameter stability, and optionally running paper or live Alpaca accounts after review.

Backtesting Alpaca Self-hosted

GitHub Screenshots

Machining software

lathecode

Text format and online editor for lathe parts with circular symmetry. It previews profiles and can convert stock, tools, passes, speeds, tapers, splines, and batches into G-code or STL.

G-code STL 3D preview

Open editor GitHub

Market signals

Opportunity Radar

Single-file browser monitor for contrarian market signals based on aggregate Fear & Greed history, VIX, selected ticker data, and configurable forward-return checkpoints.

Browser-only Fear & Greed VIX

Open app GitHub

Personal finance

BDGT

Local-first budgeting dashboard for importing bank CSV files, categorizing spending, reviewing recurring costs, tracking projects, and modeling net worth in the browser.

CSV import LocalStorage Charts

Open app GitHub

Local-first privacy

Private Diary

Encrypted journal that runs as a single HTML file, stores entries in the browser with AES-GCM, supports encrypted backups, and can optionally call OpenRouter when requested.

Encrypted IndexedDB Single file

Open app GitHub

Password vault

Harpocrates

Single-file browser password vault that encrypts data locally with Web Crypto, stores the encrypted bundle in localStorage, and imports common password-manager CSV exports.

Web Crypto Passwords No backend

Open app GitHub

Controller hardware

H5 Controller

ESP32-S3 CNC and electronic lead screw controller with touch UI, WiFi, G-code and lathecode support, keyboard input, joystick, MPG, and scale ports.

ESP32-S3 3 axes Touch UI

GitHub Video

Open-source lathe

Concrete Lathe

Modulathe is a metal lathe design built from printed forms, concrete or a similar fill, off-the-shelf motion parts, and a small number of custom CNC-machined pieces.

Open hardware CNC-ready Printed forms

GitHub 3D models