<!DOCTYPE html><html lang="en"><head><meta http-equiv="Content-Type" content="text/html charset=UTF-8"><meta charset="UTF-8"><meta name="viewport" content="width=device-width"><meta name="x-apple-disable-message-reformatting"><title>TLDR Dev</title><meta name="color-scheme" content="light dark"><meta name="supported-color-schemes" content="light dark"><style type="text/css">
:root {
color-scheme: light dark; supported-color-schemes: light dark;
}
*,
*:after,
*:before {
-webkit-box-sizing: border-box; -moz-box-sizing: border-box; box-sizing: border-box;
}
* {
-ms-text-size-adjust: 100%; -webkit-text-size-adjust: 100%;
}
html,
body,
.document {
width: 100% !important; height: 100% !important; margin: 0; padding: 0;
}
body {
-webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; text-rendering: optimizeLegibility;
}
div[style*="margin: 16px 0"] {
margin: 0 !important;
}
table,
td {
mso-table-lspace: 0pt; mso-table-rspace: 0pt;
}
table {
border-spacing: 0; border-collapse: collapse; table-layout: fixed; margin: 0 auto;
}
img {
-ms-interpolation-mode: bicubic; max-width: 100%; border: 0;
}
*[x-apple-data-detectors] {
color: inherit !important; text-decoration: none !important;
}
.x-gmail-data-detectors,
.x-gmail-data-detectors *,
.aBn {
border-bottom: 0 !important; cursor: default !important;
}
.btn {
-webkit-transition: all 200ms ease; transition: all 200ms ease;
}
.btn:hover {
background-color: #f67575; border-color: #f67575;
}
* {
font-family: Arial, Helvetica, sans-serif; font-size: 18px;
}
@media screen and (max-width: 600px) {
.container {
width: 100%; margin: auto;
}
.stack {
display: block!important; width: 100%!important; max-width: 100%!important;
}
.btn {
display: block; width: 100%; text-align: center;
}
}
body,
p,
td,
tr,
.body,
table,
h1,
h2,
h3,
h4,
h5,
h6,
div,
span {
background-color: #FEFEFE !important; color: #010101 !important;
}
@media (prefers-color-scheme: dark) {
body,
p,
td,
tr,
.body,
table,
h1,
h2,
h3,
h4,
h5,
h6,
div,
span {
background-color: #27292D !important; color: #FEFEFE !important;
}
}
a {
color: inherit !important; text-decoration: underline !important;
}
</style><!--[if mso | ie]>
<style type="text/css">
a {
background-color: #FEFEFE !important; color: #010101 !important;
}
@media (prefers-color-scheme: dark) {
a {
background-color: #27292D !important; color: #FEFEFE !important;
}
}
</style>
<![endif]--></head><body class="">
<div style="display: none; max-height: 0px; overflow: hidden;">A major AWS outage occurred in the US-East region, causing widespread internet disruptions. This outage was caused by a "brain drain" </div>
<div style="display: none; max-height: 0px; overflow: hidden;">
<br>
</div>
<table align="center" class="document"><tbody><tr><td valign="top">
<table align="center" border="0" cellpadding="0" cellspacing="0" class="container" width="600"><tbody><tr class="inner-body"><td>
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr class="header"><td bgcolor="" class="container">
<table width="100%"><tbody><tr><td class="container">
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" style="margin-top: 0px;" width="100%"><tbody><tr><td style="padding: 0px;">
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div style="text-align: center;">
<span style="margin-right: 0px;"><a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Ftldr.tech%2Fdev%3Futm_source=tldrdev/1/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/EXQPYmYRfR4-pVkR7uNLWDwudT0ANB6f99IxOjfwoGg=427" rel="noopener noreferrer" target="_blank"><span>Sign Up</span></a>
|<span style="margin-right: 2px; margin-left: 2px;"><a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fadvertise.tldr.tech%2F%3Futm_source=tldrdev%26utm_medium=newsletter%26utm_campaign=advertisetopnav/1/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/MTGU-FLc54s-ODXArYx6sSBRNkMSX6Fja5X4djkyG30=427" rel="noopener noreferrer" target="_blank"><span>Advertise</span></a></span>|<span style="margin-left: 2px;"><a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fa.tldrnewsletter.com%2Fweb-version%3Fep=1%26lc=156b9020-84b7-11f0-a976-55fc1d40139c%26p=268715e2-ae4b-11f0-a256-83a134693d7a%26pt=campaign%26t=1761044817%26s=8cfadeda1b8f7776a4d45671742a0668a1fa4754d61efc6d73cf3e9c7c5317db/1/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/rtqOEstjs3yHMUaQue55Ot1zx5kc0h8uqoHTapPK_YU=427"><span>View Online</span></a></span>
<br>
</span></div>
</td></tr></tbody></table>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="text-align: center;"><span data-darkreader-inline-color="" style="--darkreader-inline-color:#3db3ff; color: rgb(51, 175, 255) !important; font-size: 30px;">T</span><span style="font-size: 30px;"><span data-darkreader-inline-color="" style="color: rgb(232, 192, 96) !important; --darkreader-inline-color:#e8c163; font-size:30px;">L</span><span data-darkreader-inline-color="" style="color: rgb(101, 195, 173) !important; --darkreader-inline-color:#6ec7b2; font-size:30px;">D</span></span><span data-darkreader-inline-color="" style="--darkreader-inline-color:#dd6e6e; color: rgb(220, 107, 107) !important; font-size: 30px;">R</span>
<br>
</td></tr></tbody></table>
<br>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr id="together-with"><td align="center" height="20" style="vertical-align:middle !important;" valign="middle" width="100%"><strong style="vertical-align:middle !important; height: 100%;">Together With </strong>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.protegrity.com%2Fdevelopers%3Futm_source=TLDR%26utm_medium=email%26utm_campaign=Developer-Dev/1/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/JC4PsfuqHx1Z5CqTMKpcZAUGOaaaow2r8sgLQU22SJU=427"><img src="https://images.tldr.tech/protegrity.png" valign="middle" style="vertical-align: middle !important; height: 100%;" alt="Protegrity"></a></td></tr></tbody></table>
<table style="table-layout: fixed; width:100%;" width="100%"><tbody><tr><td style="padding:0;border-collapse:collapse;border-spacing:0;margin:0;">
<div style="text-align: center;">
<h1><strong> TLDR Dev <span id="date">2025-10-21</span></strong></h1>
</div>
</td></tr></tbody></table>
<table style="table-layout: fixed; width:100%;" width="100%"><tbody><tr id="sponsy-copy"><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.protegrity.com%2Fdevelopers%3Futm_source=TLDR%26utm_medium=email%26utm_campaign=Developer-Dev/2/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/urfTpuf5QnIQSNUPoA50kxKM8wI6EzM4mBmfu0WyuWQ=427">
<span>
<strong>A free toolkit to secure sensitive data in your AI pipeline (Sponsor)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Discover and protect sensitive data with <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.protegrity.com%2Fdevelopers%3Futm_source=TLDR%26utm_medium=email%26utm_campaign=Developer-Dev/3/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/NCE-K7BUMRjWf7xNB5W3YBOcKmyXswi5e9JbCQLCi5w=427" rel="noopener noreferrer nofollow" target="_blank"><span>Protegrity Developer Edition</span></a> - a free, lightweight toolkit that installs from PyPI or GitHub.
<p></p>
<ul>
<li>Find and protect PII automatically</li>
<li>Tokenize, mask, or redact information without breaking your code</li>
<li>Add guardrails so GenAI tools don't leak private data</li>
<li>Keep data protected across your full AI pipeline, from training to output</li>
</ul>
<p><a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.protegrity.com%2Fdevelopers%3Futm_source=TLDR%26utm_medium=email%26utm_campaign=Developer-Dev/4/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/o-xGB86L22RzRsImLVAir2GetTacVbsgzmy5tuEKFw8=427" rel="noopener noreferrer nofollow" target="_blank"><span>Launch the Protegrity Developer Edition</span></a> in minutes using a single command - and get instant access to the same security tools trusted by global banks and healthcare companies.</p>
<p><a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.protegrity.com%2Fdevelopers%3Futm_source=TLDR%26utm_medium=email%26utm_campaign=Developer-Dev/5/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/0jd9sBpyAA_ZyPQEZ68Jlm2OnKqdsEaYQeRPc3uICwc=427" rel="noopener noreferrer nofollow" target="_blank"><span>Get it free (GitHub / PyPI / API)</span></a>
</p>
</span></span></div>
</td></tr></tbody></table>
</td></tr></tbody></table>
</td></tr></tbody></table>
</td></tr>
<tr bgcolor=""><td class="container">
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td style="padding: 0px;">
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding-top: 0px; padding-bottom: 0px;">
<div class="text-block">
<div style="text-align: center;"><span style="font-size: 36px;">🧑💻</span></div>
</div>
</td></tr></tbody></table>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding-top: 0px; padding-bottom: 0px;">
<div class="text-block">
<div style="text-align: center;">
<h1><strong>Articles & Tutorials</strong></h1>
</div>
</div>
</td></tr></tbody></table>
<table style="table-layout: fixed; width: 100%;" width="100%"><tbody><tr><td style="padding:0;border-collapse:collapse;border-spacing:0;margin:0;" valign="top">
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fallthingssmitty.com%2F2025%2F10%2F20%2Frethinking-async-loops-in-javascript%2F%3Futm_source=tldrwebdev/1/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/Y9Rwd1uXWJ-22sYY9VqVIDH4izz4kkIt59bHXoVRZYU=427">
<span>
<strong>Rethinking async loops in JavaScript (5 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Using `await` within JavaScript loops, specifically `for` loops and `map()` functions, when dealing with asynchronous operations, has some pitfalls. Using `await` in a `for` loop results in sequential execution, while `map()` doesn't inherently wait for promises to resolve. Instead, it's better to use `Promise.all()` with `map()` for parallel execution, but this has "fail-fast" behavior, so alternatives like `Promise.allSettled()` or inline error handling are better.
</span>
</span>
</div>
</td></tr></tbody></table>
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fblog.abdellatif.io%2Fproduction-rag-processing-5m-documents%3Futm_source=tldrwebdev/1/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/LK1Xh1SpPB3nyflcOIGorsvxcEhYkxLXPEIJLV8xwUA=427">
<span>
<strong>Production RAG: what I learned from processing 5M+ documents (3 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
After building Retrieval Augmented Generation (RAG) systems for two large datasets, this dev found that initial success with Langchain and Llamaindex was misleading, as real-world performance required much more refinement. The most impactful improvements came from query generation, reranking, custom chunking strategies, incorporating metadata, and query routing.
</span>
</span>
</div>
</td></tr></tbody></table>
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fjovidecroock.com%2Fblog%2Fstate-vs-signals%2F%3Futm_source=tldrwebdev/1/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/slEn320xSx9I9dx7VY-nFBipjhWzvfg6Ys-BjldQwDE=427">
<span>
<strong>State and rerenders (6 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
State-based rendering (like React does) re-renders entire subtrees when state changes, even if components don't use the updated state, requiring manual optimization. Signal-based rendering, however, only re-renders components that directly access a signal's value. This granular reactivity makes state management easier, reduces bundle sizes, and makes performance more predictable.
</span>
</span>
</div>
</td></tr></tbody></table>
</td></tr></tbody></table>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding-top: 0px; padding-bottom: 0px;">
<div class="text-block">
<div style="text-align: center;"><span style="font-size: 36px;">🧠</span></div>
</div>
</td></tr></tbody></table>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding-top: 0px; padding-bottom: 0px;">
<div class="text-block">
<div style="text-align: center;">
<h1><strong>Opinions & Advice</strong></h1>
</div>
</div>
</td></tr></tbody></table>
<table style="table-layout: fixed; width: 100%;" width="100%"><tbody><tr><td style="padding:0;border-collapse:collapse;border-spacing:0;margin:0;" valign="top">
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.theregister.com%2F2025%2F10%2F20%2Faws_outage_amazon_brain_drain_corey_quinn%2F%3Futm_source=tldrwebdev/1/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/vL564nlMMg_PZz6I5oMgUxofjEgjJb320m1BdzsI-mE=427">
<span>
<strong>Today is when Amazon brain drain finally caught up with AWS (7 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
A major AWS outage occurred in the US-East region, causing widespread internet disruptions. This outage was caused by a "brain drain" of senior AWS engineers with crucial institutional knowledge who left due to layoffs and disliked company policies. This loss of experienced personnel is making AWS' ability to quickly detect and resolve complex infrastructure problems worse.
</span>
</span>
</div>
</td></tr></tbody></table>
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.pcloadletter.dev%2Fblog%2Fai-hype-and-productivity%2F%3Futm_source=tldrwebdev/1/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/0Ox1vO07zatgWjeRRzIpYglrxQS1ZW8QF4T-vfJid14=427">
<span>
<strong>AI hype is excessive, but its productivity gains are real (3 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
This dev initially dismissed AI due to excessive hype because of how companies unrealistically claimed it could solve all problems. However, their perspective changed after using AI-powered coding tools like Cursor, especially the autocomplete feature. They found these tools, especially the agent panel, when used with clear instructions, boosted their productivity by helping with code comprehension, scaffolding, and debugging.
</span>
</span>
</div>
</td></tr></tbody></table>
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.canva.dev%2Fblog%2Fengineering%2Fai-interview-success%3Futm_source=tldrwebdev/1/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/LyF9HINOyNYjs7ODeXJiZrX4oPd_orDabXBUtktFx14=427">
<span>
<strong>AI Interview Success: An Interviewer's Inside Guide (5 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
The key to success in AI-assisted coding interviews is using AI tools collaboratively while maintaining full technical ownership. This means treating AI as a development accelerator rather than a complete solution generator, and being able to explain every technical decision made.
</span>
</span>
</div>
</td></tr></tbody></table>
</td></tr></tbody></table>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding-top: 0px; padding-bottom: 0px;">
<div class="text-block">
<div style="text-align: center;"><span style="font-size: 36px;">🚀</span></div></div>
</td></tr></tbody></table>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding-top: 0px; padding-bottom: 0px;">
<div class="text-block">
<div style="text-align: center;">
<h1><strong>Launches & Tools</strong></h1>
</div>
</div>
</td></tr></tbody></table>
<table style="table-layout: fixed; width: 100%;" width="100%"><tbody><tr><td style="padding:0;border-collapse:collapse;border-spacing:0;margin:0;" valign="top">
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.name.com%2Fnameapi%3Futm_source=tldr-webdev%26utm_medium=newsletter-s2%26utm_campaign=name_reseller/1/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/h1xxLXEJ1uIZ1cFMV-Gd_TvIAhgEQixV7Bry51gSPxM=427">
<span>
<strong>Help users find and secure domains without breaking flow with the Name.com API (Sponsor)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Name.com already has 2.4M domains under management, but now it's even easier to integrate domain services into your creation workflow. The <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.name.com%2Fnameapi%3Futm_source=tldr-webdev%26utm_medium=newsletter-s2%26utm_campaign=name_reseller/2/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/V9afNbz6j6KjrvazKdZxBFXsTrkKHQ3jL9cC8zMypqA=427" rel="noopener noreferrer nofollow" target="_blank"><span>Name.com API</span></a> is built to OpenAPI spec and lets you search, register, and manage domains, DNS records, WHOIS privacy, and more — all through a secure, RESTful interface. <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.name.com%2Fnameapi%3Futm_source=tldr-webdev%26utm_medium=newsletter-s2%26utm_campaign=name_reseller/3/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/CBR1dt5CJdc8ffv1G8XnQlShJdtUp9TZg3wzqSBLXZ4=427" rel="noopener noreferrer nofollow" target="_blank"><span>Learn more</span></a>
</span>
</span>
</div>
</td></tr></tbody></table>
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.anthropic.com%2Fnews%2Fclaude-code-on-the-web%3Futm_source=tldrwebdev/1/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/yZpsDgcF58aL6QG-s2P8WmRCGOjCZN89UAmS3DqbFFw=427">
<span>
<strong>Claude Code on the Web (2 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Anthropic has launched Claude Code on the web, a beta feature allowing users to delegate coding tasks to Claude directly from their browser. This cloud-based service allows for parallel execution of coding tasks in a sandboxed environment, connecting to GitHub repos and providing real-time progress tracking.
</span>
</span>
</div>
</td></tr></tbody></table>
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Frailsdesigner.com%2Fintroducing-perron%2F%3Futm_source=tldrwebdev/1/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/QgKTTUww_XSOqHS7xcy2YAl4_-SBSdwSPolcFi0rvI8=427">
<span>
<strong>Introducing Perron: Rails-based static site generator (6 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Perron is a new open-source Rails-based static site generator for streamlined website creation for Rails developers. It allows devs to use their existing Rails knowledge and familiar tools like ViewComponent and Tailwind CSS to build static sites. The generator has features such as resource management, content scheduling, markdown support, and HTML transformations, alongside a library of snippets and templates.
</span>
</span>
</div>
</td></tr></tbody></table>
</td></tr></tbody></table>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding-top: 0px; padding-bottom: 0px;">
<div class="text-block">
<div style="text-align: center;"><span style="font-size: 36px;">🎁</span></div></div>
</td></tr></tbody></table>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding-top: 0px; padding-bottom: 0px;">
<div class="text-block">
<div style="text-align: center;"><strong><h1>Miscellaneous</h1></strong></div>
</div>
</td></tr></tbody></table>
<table bgcolor="" style="table-layout: fixed; width: 100%;" width="100%"><tbody><tr><td style="padding:0;border-collapse:collapse;border-spacing:0;margin:0;" valign="top">
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.devas.life%2Fthe-scariest-user-support-email-ive-ever-received%2F%3Futm_source=tldrwebdev/1/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/hnaTLRnknj0U4krnaqrymBMX-EN_GYH6-PH9TjCFVfg=427">
<span>
<strong>The scariest “user support” email I've ever received (3 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
This dev received a suspicious user support email claiming a cookie consent issue on his app's website, which doesn't actually use cookies. The sender provided a link disguised as a screenshot, leading to a Captcha that, upon completion, prompted Takuya to run a dangerous command in his terminal. This command would have downloaded and executed a shell script from a remote server, a phishing attempt.
</span>
</span>
</div>
</td></tr></tbody></table>
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fopen.substack.com%2Fpub%2Fkylepoyar%2Fp%2Fis-ai-adoption-slowing-down%3Futm_source=tldrwebdev/1/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/mPRe3CR3ol5-SRQFkJh3bT6W-qI20qH1r_D38izPoS8=427">
<span>
<strong>Is AI adoption slowing down? (7 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
The Ramp Economics Lab shows that AI adoption is showing signs of slowing down, with paid AI adoption declining in September (the second decline of the year). While AI companies like OpenAI and Anthropic are generating a lot of revenue ($20+ billion and $9 billion respectively), we may be reaching a point where more AI use cases are being developed than the market can actually adopt. Businesses have experimented with AI and may want to optimize their current implementations before taking on new use cases.
</span>
</span>
</div>
</td></tr></tbody></table>
</td></tr></tbody></table>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding-top: 0px; padding-bottom: 0px;">
<div class="text-block">
<div style="text-align: center;"><span style="font-size: 36px;">⚡</span></div></div>
</td></tr></tbody></table>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding-top: 0px; padding-bottom: 0px;">
<div class="text-block">
<div style="text-align: center;">
<h1><strong>Quick Links</strong></h1>
</div>
</div>
</td></tr></tbody></table>
<table bgcolor="" style="table-layout: fixed; width: 100%;" width="100%"><tbody><tr><td style="padding:0;border-collapse:collapse;border-spacing:0;margin:0;" valign="top">
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.tomshardware.com%2Ftech-industry%2Fsemiconductors%2Falibaba-says-new-pooling-system-cut-nvidia-gpu-use-by-82-percent%3Futm_source=tldrwebdev/1/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/Jknf6A-QqjwRPDhVAWjkBTpJJ7bYz3xLu7BQDux9_JQ=427">
<span>
<strong>Alibaba Cloud says it cut Nvidia AI GPU use by 82% with new pooling system (3 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Alibaba Cloud's Aegaeon pooling system reportedly reduced its Nvidia AI GPU usage by 82% using token-level scheduling, allowing 213 GPUs to perform the work of 1,192 in serving LLMs.
</span>
</span>
</div>
</td></tr></tbody></table>
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fnathan.rs%2Fposts%2Froberta-diffusion%2F%3Futm_source=tldrwebdev/1/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/qw-TCIulfS0QnICQYW1N8a1kjw4fT6cQ-2lqQdW_MKg=427">
<span>
<strong>BERT is just a Single Text Diffusion Step (9 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
By fine-tuning a BERT-like model with variable masking rates, mimicking a discrete diffusion process, it can be repurposed for text generation, showing that BERT's masked language modeling is essentially a single step of text diffusion.
</span>
</span>
</div>
</td></tr></tbody></table>
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fblog.cloudflare.com%2Fimproving-the-trustworthiness-of-javascript-on-the-web%3Futm_source=tldrwebdev/1/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/su3VJt1D4vxkRRaL7wZNIyzUwJ5ygjE-abSJYhoFb7I=427">
<span>
<strong>Improving the trustworthiness of JavaScript on the Web (19 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Web Application Integrity, Consistency, and Transparency (WAICT) is a W3C-backed system designed to improve the trustworthiness of JavaScript on the web by providing integrity, consistency, and transparency guarantees through integrity manifests, public logs, and trusted third parties.
</span>
</span>
</div>
</td></tr></tbody></table>
<table align="center" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block">
<span>
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fhealth.aws.amazon.com%2Fhealth%2Fstatus%3Fts=20251020%26utm_source=tldrwebdev/1/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/_Qp-c3nU4HlqGy2UGDlOIJAg4BN3vtut4aVLV_aP9-8=427">
<span>
<strong>AWS Service health - Oct 20, 2025 (14 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
An operational issue in the US-EAST-1 region involving increased error rates and latencies across multiple AWS services due to DNS resolution issues and subsequent EC2 instance launch impairments, causing many websites to go down.
</span>
</span>
</div>
</td></tr></tbody></table>
</td></tr></tbody></table>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td align="left" style="word-break: break-word; vertical-align: top; padding: 5px 10px;">
<p style="padding: 0; margin: 0; font-size: 22px; color: #000000; line-height: 1.6; font-weight: bold;">
Love TLDR? Tell your friends and get rewards!
</p>
</td></tr>
<tr><td class="container" style="padding: 0px 10px 15px;">
<div class="text-block">
Share your referral link below with friends to get free TLDR swag!
</div>
</td></tr>
<tr><td align="left" style="padding: 10px;">
<div class="text-block">
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Frefer.tldr.tech%2F8770c80a%2F3/1/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/C6h3YS2Feef0dj0YRlz2ILjzuFm53v1uWMX-NOeQMEo=427" style="color: #464ba4; text-decoration: underline;">https://refer.tldr.tech/8770c80a/3</a>
</div>
</td></tr>
<tr></tr>
<tr><td align="left" style="padding:5px 10px;">
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fhub.sparklp.co%2Fsub_7383e7653c81%2F3/1/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/dDGz0IgCR1v8eKorcGOZsYCBq7wdBQAmwYS63lSQCBo=427" style="font-size: 16px; line-height: 1.6; padding: 10px 0; display: inline-block; text-decoration: underline;"><span style="mso-text-raise:13pt; text-decoration: underline;">Track your referrals here.</span></a>
</td></tr></tbody></table>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td align="left" style="word-break: break-word; vertical-align: top; padding: 5px 10px;">
<p style="padding: 0; margin: 0; font-size: 22px; color: #000000; line-height: 1.6; font-weight: bold;">
Want to advertise in TLDR? 📰
</p>
<div class="text-block" style="margin-top: 10px;">
If your company is interested in reaching an audience of web developers and engineering decision makers, you may want to <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fadvertise.tldr.tech%2F%3Futm_source=tldrdev%26utm_medium=newsletter%26utm_campaign=advertisecta/1/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/IkB1V94vJNzwTlCrjwYbytNJJNEBqHrgistuMdBv1I0=427"><strong><span>advertise with us</span></strong></a>.
</div>
<br>
<!-- New "Want to work at TLDR?" section -->
<p style="padding: 0; margin: 0; font-size: 22px; color: #000000; line-height: 1.6; font-weight: bold;">
Want to work at TLDR? 💼
</p>
<div class="text-block" style="margin-top: 10px;">
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fjobs.ashbyhq.com%2Ftldr.tech/1/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/qGMm7JnOk6Z_C9EG6UWXRkKfy07fLLUv4G_84w9_h1k=427" rel="noopener noreferrer" style="color: #0000EE; text-decoration: underline;" target="_blank"><strong>Apply here</strong></a> or send a friend's resume to <a href="mailto:jobs@tldr.tech" style="color: #0000EE; text-decoration: underline;">jobs@tldr.tech</a> and get $1k if we hire them!
</div>
<br>
<div class="text-block">
If you have any comments or feedback, just respond to this email!
<br>
<br> Thanks for reading,
<br>
<span>Priyam Mohanty</span>, <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.linkedin.com%2Fin%2Fxu-jenny%2F/1/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/AUcgF4RoFrnrQLID0-M0WvvrbsyE6EMwjU05U7t9k5w=427"><span>Jenny Xu</span></a> & <span>Ceora Ford</span>
<br>
<br>
</div>
<br>
</td></tr></tbody></table>
<table align="center" bgcolor="" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td class="container" style="padding: 15px 15px;">
<div class="text-block" id="testing-id">
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Ftldr.tech%2Fdev%2Fmanage%3Femail=silk.theater.56%2540fwdnl.com/1/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/r_TIm2NQM_vJRISntH0q1YDYH3Sz3Wzj9gCoCOEZlxA=427">Manage your subscriptions</a> to our other newsletters on tech, startups, and programming. Or if TLDR Dev isn't for you, please <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fa.tldrnewsletter.com%2Funsubscribe%3Fep=1%26l=e8d201ca-3e93-11ed-9a32-0241b9615763%26lc=156b9020-84b7-11f0-a976-55fc1d40139c%26p=268715e2-ae4b-11f0-a256-83a134693d7a%26pt=campaign%26pv=4%26spa=1761044452%26t=1761044817%26s=128631abc919f4152ebabf587a426e61ea3bdcd187b3380c3bcea8fe4472b125/1/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/5Pw29Ej3q1ycgn54ZQAQkqMCRxcQmbdSiXU6vG48iBM=427">unsubscribe</a>.
<br>
</div>
</td></tr></tbody></table>
</td></tr></tbody></table>
</td></tr></tbody></table>
</td></tr></tbody></table>
</td></tr></tbody></table>
<img alt="" src="http://tracking.tldrnewsletter.com/CI0/0100019a0673678f-e47d004a-ba83-495e-9212-b0372f69acb6-000000/rDTrkeOClZRuakY6Gbo5N6PiAQERBSTYcnwKaxwP858=427" style="display: none; width: 1px; height: 1px;">
</body></html>