krausefx/eigen

Eigen is the iOS app for Artsy, a company that describes itself as bringing the art world to your pocket. If you have ever browsed art, looked up auction results, or followed artists and galleries from your iPhone, this is the code that makes that experience happen. It is the same app that real Artsy users download from the App Store, and it is fully open source, anyone can read the code, learn from it, or run it themselves. The project is built in Objective-C, a programming language long used for iPhone and iPad apps. At a high level, the app talks to Artsy's servers to pull in data about artworks, artists, shows, and auctions, then displays it all in a polished mobile interface. If you want to try running it yourself, the repository includes a "quick start" script that downloads the necessary pieces, connects to a test version of Artsy's data, and lets you open the project in Apple's development tool to build and explore it. The README notes that one step in this setup might fail the first time due to a known bug, but simply running it again should fix it. This is primarily aimed at developers who are either curious about how a large, real-world iOS app is structured or interested in contributing to Artsy's mobile work. For example, someone learning iOS development could clone the code to see how a production app handles navigation, networking, and design. Artsy also has a slightly different setup path for its own staff, which adds extra code-quality tools to keep everything consistent across the team. What stands out is how unusual it is for a company to share the complete source code of its flagship consumer app. Most businesses keep this kind of code private, but Artsy has made it public since 2012, treating it as both a working product and a learning resource for the broader community.