The Daily Index — Tuesday, January 2, 2024 · TLDR Index

ARTICLES & TUTORIALS

TLDR Web Dev

TLDR Web Dev

HOW PINTEREST SCALED TO 11 MILLION USERS WITH ONLY 6 ENGINEERS

Pinterest scaled rapidly from a small startup with just 1 engineer to handling 11 million monthly active users with only 6 engineers. The key takeaways from its scaling journey include the importance of using known, proven technologies, keeping the architecture simple, avoiding overcomplication, favoring sharding databases over clustering, and embracing limited, proven choices. Pinterest went through various phases of growth, optimizing its tech stack along the way, and learned valuable lessons about database structuring and management, such as how to pick proper database primary keys when sharding.

read.engineerscodex.com · 6 min

TLDR Web Dev

COMMITTING WITHOUT GIT

This article discusses how to create Git commits using Python and without using the Git command-line interface. It explains the process step by step, covering the creation of blobs, trees, commits, and branches manually. Python code snippets are provided for each step along with explanations of Git's underlying data structures.

matheustavares.gitlab.io · 5 min

TLDR Web Dev

2024 GUIDE TO GOALS FOR SOFTWARE ENGINEERS

Setting clear goals provides focus, helps in decision-making, and reduces the ambiguity in one's path. This article covers different types of goals, including those partially within one's control, completely within one's control, action-based checklists, recurring patterns, and feeling-based goals. To decide on goals, it’s helpful to start with focus areas and define the "why" behind each goal.

careercutler.substack.com · 8 min

TLDR Web Dev

HOW PROMOTIONS AND RATINGS WORK

Self-reviews, peer reviews, manager reviews, and performance discussions are all used for determining an employee's rating in big tech companies. To understand promotions and ratings well, it’s important to know that managers don't have full control over ratings and that it’s important to have higher-up engineers and managers vouching for you.

developing.dev · 4 min

TLDR Web Dev

HOW TO PREPARE THE SYSTEM DESIGN INTERVIEW

It’s important to identify common patterns in real-world applications, recognize knowledge gaps, and collect resources for study and practice when preparing for system design interviews, particularly for FAANG companies. The framework for succeeding during interviews involves asking clarifying questions, proposing high-level designs, diving into details, and addressing follow-up questions. Various resources for study, practice, and learning are provided in the article.

strategizeyourcareer.substack.com · 9 min

TLDR Web Dev

HOW I DESTROYED THE COMPANY'S DB

The author of this article received a support team message about a customer problem, leading to the accidental deletion of all orders in the production database due to a flawed SQL query. The recovery process involved downtime and efforts to restore the database to a previous state. The mistakes made include working on production during the weekend without proper testing, manual database editing, and not using transactions.

zaidesanton.substack.com · 6 min

TLDR Web Dev

THE HARDEST PART OF BUILDING SOFTWARE IS NOT CODING, IT'S REQUIREMENTS

Coding itself is relatively straightforward - the real challenge lies in defining clear and accurate software requirements. This will make it difficult for AI to replace software engineers. AI cannot create software requirements well, but can assist in rewriting existing software based on well-defined specifications.

stackoverflow.blog · 10 min

TLDR Web Dev

MUSINGS ON THE C CHARTER

There are various principles that should guide the update of the C committee’s charter for the long-term health of C. These include the importance of providing a simple upgrade path between adjacent versions of C while allowing for incompatibilities, minimizing incompatibilities with C++, maintaining conceptual simplicity, and addressing memory safety issues that plague C.

blog.aaronballman.com · 10 min

TLDR Web Dev

BUN, JAVASCRIPT, AND TCO

Tail Call Optimization (TCO) in JavaScriptCore, the engine behind Bun, allows for optimized recursive functions. This allows Bun to be faster than other JavaScript runtimes.

onsclom.net · 3 min

TLDR Web Dev

SUBJECT FIRST COMMIT MESSAGES

"Subject-First Commit Messages" are easier to scan and read. The more common style of commit messages has an active voice and imperative mood style, which is harder to read.

github.com · 2 min

TLDR Web Dev

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