🍔🧠 How YouTube Handles 2.5B Users: A System Design Breakdown

🍔 THIS WEEK’S MENU 🥗

📚 Software Engineering Articles

• Learn system design fundamentals with YouTube architecture breakdown

• Master chaos engineering to build resilient systems

• Zero-downtime Postgres upgrade secrets revealed

• Container queries revolutionize responsive web design

• JavaScript Temporal API simplifies date handling

🗞️ Tech and AI Trends

• DeepSeek overtakes ChatGPT as the #1 App Store app

• Apple partners with SpaceX for iPhone satellite connectivity

• AI creates revolutionary glowing molecule in record time

👨🏻‍💻 Coding Tip

• FastAPI dependency injection ensures clean database connection management in async operations

Reading time: 5 minutes

Food for Thought
A mindset, an example, and an action item to start the week

Mindset: Embrace challenges as opportunities for growth and resilience.

Example: Airbnb pivoted during the pandemic to provide housing for essential workers.

Action: Identify one current challenge and brainstorm creative solutions.

(Share on Twitter)

The Rabbit Hole
Deep dives, trends, and resources curated to stay ahead

💾 SIDE DISHES 💾

ARTICLE (websock-what?)
The Hidden Complexity of Scaling WebSockets

GITHUB REPO (maybe finance your life)
maybe-finance/maybe

ARTICLE (timing is everything)
How long is a second in JavaScript?

ARTICLE (AI choo-choo train)
Which AI to Use Now: An Updated Opinionated Guide

GITHUB REPO (design it your way)
onlook-dev/onlook

ARTICLE (postgres got upgraded!)
A Major Postgres Upgrade with Zero Downtime

ARTICLE (container queries, yay!)
Container Queries Unleashed

ARTICLE (let's encrypt the web)
Scaling Our Rate Limits to Prepare for a Billion Active Certificates

ARTICLE (mobx it or lose it)
Picking a state management library for a React app used by millions (and why we went with MobX)

ARTICLE (rusty feature alert!)
Rust's worst feature*

ARTICLE (sql, detective style)
You Probably Don't Need Query Builders

ARTICLE (controller chaos in Kubernetes)
So you wanna write Kubernetes controllers?

ARTICLE (time's a-changin')
JavaScript Temporal is coming

The Weekly Digest
Software, AI, and startup news worth your time

🚀 DeepSeek Surpasses ChatGPT as App Store Leader (3 min)

Brief: The AI app DeepSeek has surged to become the top free app globally, demonstrating its rapid rise in popularity and shaking up the consumer AI landscape, previously dominated by ChatGPT.

🎗️ Reid Hoffman Raises $25M for AI Cancer Treatment Startup (2 min)

Brief: LinkedIn co-founder Reid Hoffman launches Manas AI with $25 million to transform cancer drug discovery using advanced AI technologies and aims to accelerate treatment development for multiple diseases.

🌍 Apple and SpaceX Collaborate to Enhance Starlink on iPhones (2 min)

Brief: Apple partners with SpaceX to integrate Starlink satellite connectivity into iPhones, enhancing global internet access for users.

✈️ Boom’s XB-1 Becomes First Civil Aircraft to Go Supersonic (2 min)

Brief: Boom Supersonic's XB-1 plane makes aviation history, becoming the first civil aircraft to break the sound barrier, achieving Mach 1.1 during its 12th test flight over California.

💡 AI Invents New Glowing Protein That Could Take Nature 500 Million Years to Create (2 min)

Brief: Researchers have developed a new glowing protein using AI that could take nature 500 million years to evolve, highlighting the potential of AI in protein engineering.

💳 The X Everything App Set for Launch This Year to Rival Apple Pay (2 min)

Brief: Elon Musk's ambitions for the X Everything App aim to create a mobile payment platform to compete directly with Apple Pay, enhancing users' financial transactions in one application.

The Quick Byte
One coding tip because you’re technical after all

This week’s coding challenge:

This week’s tip:

In Python's FastAPI, you can use dependency injection with async generator dependencies to manage database connections efficiently, ensuring proper connection handling and resource cleanup.

Wen?

• Resource Management: When dealing with database connections or other resources that need proper initialization and cleanup in an asynchronous context.

• Shared Dependencies: In situations where multiple endpoints need to share the same database connection or resource management logic.

• Transaction Management: When you need automatic transaction handling with commit/rollback capabilities across different API endpoints.

Burp-A-Laugh
The most important meal of your day