A collective list of free APIs

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

If you live in the terminal, kitty is made for you! Cross-platform, fast, feature-rich, GPU based.

The OWASP Cheat Sheet Series was created to provide a concise collection of high value information on specific application security topics.

Best and simplest tool for website change detection, web page monitoring, and website change alerts. Perfect for tracking content changes, price drops, restock alerts, and website defacement monito…

Set up a personal VPN in the cloud

Python Backtesting library for trading strategies

Zipline, a Pythonic Algorithmic Trading Library

The OWASP Mobile Application Security Testing Guide (MASTG) is a comprehensive manual for mobile app security testing and reverse engineering. It describes technical processes for verifying the OWA…

Automatic CPU speed & power optimizer for Linux

Curated list of apps and tools that not only use the new ChatGPT API, but also allow users to configure their own API keys, enabling free and on-demand usage of their own quota.

Markdown Presentations for Tech Conferences, Training, Developer Advocates, and Educators.

A supercharged version of paperless: scan, index and archive all your physical documents

Hunt for security weaknesses in Kubernetes clusters

StarCraft II Client - protocol definitions used to communicate with StarCraft II.

A statuspage generator that lets you host your statuspage for free on Github.

Local knowledge graph for Claude Code. Builds a persistent map of your codebase so Claude reads only what matters — 6.8× fewer tokens on reviews and up to 49× on daily coding tasks.

Systematic Trading in python

Python sync/async framework for Interactive Brokers API

📆 CLI calendar application

A Python + iCloud wrapper to access iPhone and Calendar data.

ThetaGang is an IBKR bot for collecting money

An interactive, terminal-based markdown presenter

An API for sending and receiving messages over web.whatsapp [Working as of 18th May 2018]

Faking your webcam background under GNU/Linux, now supports background blurring, animated background, colour map effect, hologram effect and on-demand processing.

Python sync/async framework for Interactive Brokers API (replaces ib_insync)

Download all companies periodic reports, filings and forms from EDGAR database.

Klipper plugin for self-calibrating z-offset

Facebook Chat (Messenger) for Python

Portfolio optimization and back-testing.