Top DEVELOPMENT GitHub Repositories & Tools (2026)

A collective list of free APIs

An agentic skills framework & software development methodology that works.

Curated list of project-based tutorials

💫 Toolkit to help you get started with SDD or any other process!

Spec-driven development (SDD) for AI coding assistants.

Bash is all you need - A nano claude code–like 「agent harness」, built from 0 to 1

A refreshingly simple data-driven game engine built in Rust

VS Code in the browser

Flutter makes it easy and fast to build beautiful apps for mobile and beyond

Secure environments for developers and their agents

Dynamic, resilient AI orchestration. Coordinate data, models, and compute as you build AI workflows.

Open-source mobile SSH/Mosh terminal and native AI workspace for Android and iOS.

Curso de SDD (Spec-Driven Development) desde cero

A dead simple 2D game engine for Go

Open-source, Herd-like local PHP development environment for Linux and macOS. Automatic .test domains, per-project PHP/Node isolation, one-command TLS. Podman-native, rootless.

Your agent invents things because it has no memory, and can't touch your database because it has no arms. rsc is the meta-harness that gives it both, plus the trade to know the job and the reflexes to not break your repo. For Claude Code, Codex and 15 more.

Android Emulator for iOS

AI Kanban & Development Environment. Orchestrate multiple agents, review changes, open PRs. Multi-provider, self-hostable, no telemetry.

The ZAP by Checkmarx Core project

awesome game security [Welcome to PR]