Cardstack · Software for an Open World

Inside OpenAI’s agentic software factory

A deepdive into how Codex has “taken over” OpenAI, how the frontier lab builds its agentic software factory, and the engineering challenges of one billion users. Details from inside OpenAI

Cardless | Embedded Credit Card Platform

Build credit into your product experience. Run it end to end with modular APIs, pre-built components, analytics, and full-service infrastructure.

Virtual Cards | Old Open Collective Docs

Virtual cards are an additional benefit offered to collectives through some hosts. Hosts create virtual cards and assign them to a Collective. Anyone with access to that card can then use it to make payments on behalf of the Collective. This is particularly useful for covering recurring costs like hosting a website.

Coral Stack - Build Local-First. Encrypted. Effortless.

Coral Stack is the developer platform for building fast, privacy preserving local-first applications easily.

Chapter 1. Introduction

Free software — open source software[3] — has become the backbone of modern information technology. It runs on your phone, on your laptop and desktop computers, and in embedded microcontrollers for household appliances, automobiles, industrial machinery and countless other devices that we too often forget even have software. Open source is especially prevalent on the servers that provide online services on the Internet. Every time you send an email, visit a web site, or call up some information on your smartphone, a significant portion of the activity is handled by open source software.

Open Source Initiative

The steward of the Open Source Definition, setting the foundation for the Open Source Software ecosystem.

OpenAI Developers on Twitter / X

We’re releasing new Codex features to make it a more effective coding collaborator:- A new IDE extension- Easily move tasks between the cloud and your local environment- Code reviews in GitHub- Revamped Codex CLIPowered by GPT-5 and available through your ChatGPT plan.— OpenAI Developers (@OpenAIDevs) August 27, 2025

OpenAI gpt-oss· Ollama Blog

Ollama partners with OpenAI to bring gpt-oss to Ollama and its community.

Codex for (almost) everything

The updated Codex app for macOS and Windows adds computer use, in-app browsing, image generation, memory, and plugins to accelerate developer workflows.

OpenMeet

OpenMeet is an open-source platform helping people build stronger local communities - from neighborhood groups to city-wide networks. - OpenMeet

OpenSpec — A lightweight spec‑driven framework

OpenSpec is a lightweight, spec‑driven framework for coding agents and CLIs — universal, open source, and no API keys or MCP required.

About | Open Source Ecology

The mission of Open Source Ecology (OSE) is to create the open source economy. An open source, libre economy is an efficient economy which increases innovation by open collaboration. To get there, OSE is currently developing a set of open source blueprints for the Global Village Construction Set (GVCS) – a set of the 50 most important machines that it takes for modern life to exist – everything from a tractor, to an oven, to a circuit maker.

different-ai/openwork

The open-source alternative to Claude Cowork (powered by opencode)

Linking the world's research to the code it runs on - OpenAlex blog

Research relies on software. Software written by scientists, for science, runs through the entire modern research stack: NumPy and SciPy, R and ggplot2, Jupyter, BLAST, ImageJ, AlphaFold. Yet in the scholarly record, that software is nearly invisible. Software is not usually cited formally in publications and is usually just mentioned in the text, which means […]