Felix Rieseberg, a software engineer currently working on Claude at Anthropic, has released a personal website that serves as both a professional portfolio and a creative experiment. The site features a high-effort interactive experience, which Rieseberg notes is designed to be a creative space in an era where personal websites are becoming less unique. Because the interactive version can be resource-intensive, the site automatically routes users to a static version if their browser or hardware is identified as potentially struggling with the experience.

The image reflects the aesthetic of Rieseberg's personal website and his interest in retro computing.
Rieseberg’s professional background spans several major tech companies, including leadership roles at Notion, Stripe, and Slack. At Slack, he spent five years supporting the engineering teams building the cross-platform desktop framework Electron, a tool used to build desktop applications using web technologies. His current work at Anthropic focuses on making people more productive with AI, where he has led engineering for Claude.ai, Cowork, and Code Desktop. His portfolio highlights a mix of corporate engineering and personal open-source projects, including 'Language Model Builder,' a Mac app for training small language models, and 'windows95,' an Electron app that emulates the Windows 95 operating system.
The website also showcases a variety of personal projects that reflect Rieseberg's interest in both retro computing and modern AI. These include 'macintosh.js,' which runs Mac OS 8 in an Electron app, and 'Clippy,' a desktop application that runs a language model locally. By combining his deep experience in desktop infrastructure with his current focus on artificial intelligence, Rieseberg’s portfolio illustrates the intersection of traditional software engineering—specifically the mechanics of desktop environments—and the emerging capabilities of large language models.