Case Studies

How Cursor Indexes Codebases Fast

Merkle Trees in the real world

May 10 •

Engineer's Codex

Meta's new LLM-based test generator is a sneak peek to the future of development

Meta's TestGen-LLM is a sneak peek to the future of developer productivity: specialized, orchestrated, and rigorously filtered.

Feb 23, 2024

How Apple built iCloud to store billions of databases

Apple uses Cassandra and FoundationDB for CloudKit, their cloud backend service. We take a look into how exactly each is used within their cloud and the…

Jan 14, 2024

How Google takes the pain out of code reviews, with 97% dev satisfaction

A study of Google's code review tooling (Critique), AI-powered improvements, and recent statistics

Dec 4, 2023

Meta's serverless platform processes trillions of function calls a day

XFaaS is Meta's private platform for "Hyperscale and Low Cost Serverless Functions." It is more efficient than AWS Lambda, Azure Functions, and Google…

Oct 22, 2023

How Airbnb Scaled by Moving Away From a Monolith

4 lessons from Airbnb's scaling strategy, with comparisons to other big tech companies

Oct 11, 2023

How Google writes clean, maintainable code

Google's SWE Book explains their readability process and style guides

Oct 6, 2023

How Pinterest scaled to 11 million users with only 6 engineers

Pinterest's tech stack explained simply

Oct 2, 2023

10 lessons from successful one-person startups

I interviewed 7 indie hackers and full-time SWEs with side ventures for their insights.

Sep 28, 2023

How Facebook served billions of requests per second Using Memcached

The largest Memcached system in the world

Sep 25, 2023

How Instagram scaled to 14 million users with only 3 engineers

Instagram's guiding principles and tech stack explained simply

Sep 15, 2023

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