Hi, my name is Jonathan Frei.
Pardon the mess while I get things reset up online. You can email me at hi [@] jonathan frei dot com or reach me on X at @jonathanfrei although I don’t post anymore.
Earlier iterations of this site are still available online. I published v1 on Blogger from 2009 to 2010; v2 on Tumblr from 2010 to 2014; v3 on a self-hosted Wordpress from 2014 to 2022 (online version is now a static copy hosted in an S3 bucket); v4 lives in Github and is distributed through Cloudflare from 2022 to 2026.
The current site is built with Jekyll, deployed via GitHub Actions, and served through Cloudflare.
Short posts live on the blog. Longer writing will appear as articles. A portfolio or photo galleries may come later.
Recent posts and links
- A Computer with a Signature
- The Paradox of Cyber
- The Best Startup Directory Is a Time Machine
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xai-org/x-algorithm: Algorithm powering the For You feed on X
This repository contains the core code that determines which posts a viewer sees in the For You feed on X. It combines in-network content (from accounts the viewer follows) with out-of-network content (discovered through ML-based retrieval and other mechanisms), filters content based on a variety of inputs, and ranks posts using a transformer model.
The full xAI “For You” algorithm is open source and available on GitHub.
GitHub GitHub - xai-org/x-algorithm: Algorithm powering the For You feed on X Algorithm powering the For You feed on X. Contribute to xai-org/x-algorithm development by creating an account on GitHub.
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It’s eight o’clock. The apartment is quiet, aside from the music playing softly over the speaker. It’s a playlist your friend made for you years ago. You send them a text to check in, then pick up a book, flick on the lamp, and settle into the chair to read.
This is a gorgeous site and sentiment.
Ordinary Abundance
Ordinary Abundance
A walk through a modern apartment, through the eyes of the people for whom everything in it was new.
