# The Daily Diff

> An Engineering Newspaper for software engineers who value depth over noise, curated by Arpit Bhayani.

The Daily Diff is an engineering newspaper curating the highest-signal software engineering stories, system architecture breakdowns, distributed systems designs, performance optimizations, and real-world engineering insights every day.

- **Site URL**: https://tdd.cat/
- **Curator**: Arpit Bhayani
- **Curator Website**: https://arpitbhayani.me/
- **Curator Profile**: Arpit Bhayani is a software engineer, computer systems educator, and writer specializing in distributed systems, compilers, databases, and systems architecture.
- **Update Frequency**: Daily

## Feeds & Machine-Readable Endpoints

- [Full LLM Documentation & Taxonomy](https://tdd.cat/llms-full.txt): Comprehensive background, curation methodology, and complete coverage taxonomy.
- [Latest Edition (Markdown)](https://tdd.cat/md): Plaintext / Markdown edition containing all stories, summaries, and why-read notes for the current issue. Ideal for LLM ingestion and terminal reading.
- [Latest Edition (JSON)](https://tdd.cat/json): Structured JSON payload of the latest edition including story metadata, scores, and full content.
- [Individual Edition by Date (Markdown)](https://tdd.cat/): Every edition is available in Markdown at `https://tdd.cat/{YYYY-MM-DD}.md`.
- [RSS Feed](https://tdd.cat/rss.xml): Standard RSS feed for feed readers.
- [Archive](https://tdd.cat/archive/): Full chronological index of past daily editions.
- [Readership Stats](https://tdd.cat/stats/): Traffic, unique readership, and token usage analytics.

## Core Topics Covered

- Systems Engineering & Architecture (Distributed Systems, Databases, Compilers, OS, Linux)
- High-Performance Computing & Performance Engineering
- Software Craftsmanship & Production Postmortems
- AI Systems Engineering & Model Optimization