The Daily Index — Thursday, December 11, 2025 · TLDR Index

ARTICLES & TUTORIALS

TLDR Dev

TLDR Dev

HOW TO IMPLEMENT IOS WIDGETS IN EXPO APPS

Despite widgets requiring native Swift code, you can use Expo and the `@bacons/apple-targets` plugin to integrate them together. This setup allows the React Native app and Swift widget to share data via App Groups and deep link back to the main app for expanded features.

expo.dev · 7 min

TLDR Dev

WHAT ACTUALLY MAKES YOU SENIOR

The one core skill that separates senior engineers from everyone else is the ability to reduce ambiguity. Senior engineers ask questions nobody else asks, separate what matters from the noise, and identify what should be done now. They're worth their salaries because they derisk projects. When senior engineers do this well, it looks easy.

terriblesoftware.org · 4 min

TLDR Dev

PYTHON WORKERS REDUX: FAST COLD STARTS, PACKAGES, AND A UV-FIRST WORKFLOW

Python Workers allow Python developers to ship Python globally in less than two minutes in a single command. Python Workers now supports any package supported by Pyodide, the WebAssembly runtime that powers Python Workers. It also now has dedicated memory snapshots to reduce cold start times. This post shares some of the technical details behind the changes.

blog.cloudflare.com · 9 min

TLDR Dev

TELL US WHAT YOU REALLY, REALLY… DO NOT WANT TO SPEND TIME WORKING ON

A survey by Stack Overflow explored developer frustrations amidst increasing AI adoption, finding that 84% currently use or plan to use AI, mainly for coding, searching, and debugging. However, developer problems aren't mainly from coding tasks themselves or AI's shortcomings, but rather from a lack of adequate and accessible documentation. Tasks like learning new codebases, deployments, and handling support tickets become frustrating due to fragmented and bad documentation efforts.

stackoverflow.blog · 11 min

TLDR Dev

WHAT I LEARNED BUILDING A VECTOR DATABASE ON OBJECT STORAGE

Building something is a great way to learn. This developer rebuilt Turbopuffer, a vector database built entirely on object storage, to understand the tradeoffs made in its development. The post follows along as they figure out how to build a vector database from first principles.

blog.karanjanthe.me · 16 min

TLDR Dev

INCOMPLETE LIST OF MISTAKES IN THE DESIGN OF CSS

Summary unavailable

wiki.csswg.org · 5 min

TLDR Dev

THE (SUCCESSFUL) END OF THE KERNEL RUST EXPERIMENT

The Rust experiment in the Linux kernel has concluded, as Rust is now considered a core and permanent part of the kernel.

lwn.net · 1 min