The Daily Index — Friday, November 28, 2025 · TLDR Index

ARTICLES & TUTORIALS

TLDR Dev

TLDR Dev

HOW JAVA VIRTUAL THREADS SIMPLIFY REACTOR APIS

Virtual threads simplify concurrency by reducing the cost of waiting threads. They allow developers to use blocking functions without needing to refactor existing code or rely heavily on reactive libraries like Reactor. By using virtual threads, developers can combine modern reactive workflows with traditional Java code, improving code maintainability and understanding.

shiftmag.dev · 11 min

TLDR Dev

SHRINKING WHILE LINKING

This post discusses two ways to significantly reduce the size of a static library. One uses classic tools like ld and objcopy, while the other uses LLVM-specific tools. They both produce similar-sized outputs, but there are some trade-offs. The 'classic' bintools approach works with both GNU bintools and LLVM bintools, and it's significantly faster than the LLVM tools, which need to recompile everything from the intermediate representation to machine code. However, the LLVM approach works on macOS, Linux, Windows, and probably others, making it more versatile.

tweag.io · 12 min

TLDR Dev

WHY STRONG CONSISTENCY?

Eventual consistency causes pain for both customers and application builders as it leads to complex workarounds and potential bugs. Strong consistency, like that implemented in Aurora DSQL, avoids these issues by ensuring reads reflect the latest data. Aurora DSQL achieves strong consistency by ensuring storage replicas only return data for a specific timestamp once they've seen all updates up to that time, simplifying application development.

brooker.co.za · 8 min

TLDR Dev

LINUS TORVALDS VS. AMBIGUOUS ABSTRACTIONS

Linus Torvalds has criticized the helper function, `make_u32_from_two_u16()`, arguing that the issue wasn't abstraction itself but the function's ambiguity. Torvalds found the helper unclear because it didn't explicitly state the word order, increasing cognitive load for the user. This post proposes a clearer alternative, `make_u32_from_msw_lsw()`, that encodes the word order in the name.

read.thecoder.cafe · 7 min

TLDR Dev

MIGRATING FROM GITHUB TO CODEBERG

The Zig programming language project is migrating its main repository from GitHub to Codeberg due to concerns about GitHub's engineering decline, buggy infrastructure, and push for AI features that violate Zig's policies. The move aims to escape vendor lock-in and support a non-profit platform in response to the increasing concentration of wealth in tech.

ziglang.org · 4 min

TLDR Dev

MANAGING SIDE EFFECTS: A JAVASCRIPT EFFECT SYSTEM IN 30 LINES OR LESS

This article introduces a JavaScript Effect System for managing side effects by describing them as data instead of executing them directly, improving testability, and allowing for centralized logging and profiling.

lackofimagination.org · 10 min

TLDR Dev

A PROGRAMMER-FRIENDLY I/O ABSTRACTION OVER IO_URING AND KQUEUE

TigerBeetle implemented a programmer-friendly I/O abstraction layer on top of io_uring and kqueue, enabling efficient and centralized I/O dispatch with callbacks and context management.

tigerbeetle.com · 11 min

TLDR Dev

BETTER AUTH 1.4

Better Auth 1.4 features stateless auth, SCIM provisioning, custom OAuth state, database join improvements, secondary storage for API keys, SSO domain verification, JWT key rotation, improved generic OAuth plugin, bundle size optimizations, and UUID support.

better-auth.com · 10 min

TLDR Dev

HOW WEBSOCKETS WORK

WebSockets provide persistent, full-duplex communication channels over a single TCP connection, enabling real-time data exchange between a client and server beyond the traditional request-response model of HTTP.

deepintodev.com · 9 min

TLDR Dev

FEEDBACK DOESN'T SCALE

Feedback becomes overwhelming and loses its actionable signal as the leader's direct relationships diminish, and the volume of opinions increases.

another.rodeo · 8 min