<!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;">Meta describes using confidential virtual machines and trusted execution environments to run personal-context workloads in the cloud. Remote β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β </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/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/xx1E8L81oLtIWnBv9S5tUpqHS0ZK26QrpeZulhVIN2s=452" 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/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/LANRzM6fTUgx09Hfta80Hex1u_AwTVFS1nA3c8Vtorw=452" 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=50c83492-b8bf-11f1-a888-c5447589fe5b%26pt=campaign%26t=1790334893%26s=b0f7367f7cfb6ed2830ef667b30edc2cac419db9cfeaa51ee299f07bdebc686d/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/N4BOV8wUrPimvZUfo3REM0Jb5H4UckRD8TZXlcybWZM=452"><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%2Faws.amazon.com%2Fmarketplace%2Fbuild-learn%2Fai-agent-learning-series%3Ftrk=d53e201b-b582-4485-b4ca-0ce41faa8004%26sc_channel=el/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/xQziw5ERgmllmQm7UEn7FQD8uQ-FeBJMh_OYmVeuHGc=452"><img src="https://images.tldr.tech/awsmarketplace.png" valign="middle" style="vertical-align: middle !important; height: 100%;" alt="AWS"></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">2026-09-25</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%2Faws.amazon.com%2Fmarketplace%2Fbuild-learn%2Fai-agent-learning-series%3Ftrk=d53e201b-b582-4485-b4ca-0ce41faa8004%26sc_channel=el/2/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/7ifn_jhHakjPtTUxN2Pl9Z4vn8ZOhOcaY0A49HMddQY=452">
<span>
<strong>Agent reliability patterns: on-demand guides (Sponsor)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Almost right, but not quiteβ is developers' most-cited AI frustration in Stack Overflow's 2025 survey, and it stops being tolerable once AI agents handle production work. The shift reaches ordinary AI features too. Anything that chains model calls into multi-step work inherits the same failure classes.<p></p><p>Building Agentic Systems on AWS turns them into teachable patterns: on-demand technical guides and workshops on orchestration, state that survives sessions and restarts, failure recovery, human approval gates, and evaluation that tests whether a change made the agent worse. <a class="TypographyPresentation_31345133_root LinkThemeablePresentation LinkThemeablePresentation_450120641_root Surface_311631053_color--selected-text Surface_311631053_color-hover--selected-text-hover Surface_311631053_color-active--selected-text-hover HighlightSol_1625403506_highlightSol HighlightSol_1625403506_buildingBlock HighlightSol_1625403506_highlightSol HighlightSol_1625403506_core HighlightSol_1625403506_buildingBlock" href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Faws.amazon.com%2Fmarketplace%2Fbuild-learn%2Fai-agent-learning-series%3Ftrk=d53e201b-b582-4485-b4ca-0ce41faa8004%26sc_channel=el/3/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/hlbLrQnaieLaMe5pj5sSWInZUAqsqSo9lVTTkAzvJ7c=452" rel="noreferrer noopener" target="_blank"><span><strong>Start with the agent series in AWS Marketplace</strong></span></a><strong>.</strong>
</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;">π§βπ»</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%2Fishadeed.com%2Farticle%2Fcss-detect-overlap%2F%3Futm_source=tldrdev/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/l2xNn_XvbH6Xe4Z6vA0SuY-DS4ZFJmbbiPNE-NwpNd0=452">
<span>
<strong>Detect When Elements Overlap with CSS (8 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
This article shows a CSS-only approach to detect overlapping elements with anchor positioning and scroll-driven animations. It uses the result to adapt card layouts without JavaScript, pointing to a new way to build collision-aware interfaces.
</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.stacksweep.dev%2Fjev-decision-only-llm-judge-cascade%3Futm_source=tldrdev/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/CwEVtEH_2YHkplrwnTBUSS07tsn1fejkcWIN0nEPnnc=452">
<span>
<strong>A Decision-Only Judge Matches GPT-6 on Routine Evals for 0.36% of the Fee (6 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
CMU tested Jev, a judge that returns only a verdict and label probabilities, against 16 LLM and reward-model judges. It comes within three points of GPT-6 on preference and factuality at 277 times lower fees, though it fails on difficult correctness tasks.
</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%2Fkettanaito.com%2Fblog%2Felectron-to-pwa-and-back-again%3Futm_source=tldrdev/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/R0zGLivyYz_qFZYVHfFEy8dceM_nc9uFIPjxiA0UH8o=452">
<span>
<strong>Electron to PWA and Back Again (7 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
This article reflects on a rewrite of an Electron application as a progressive web app. It uses the migration to examine the technical and product trade-offs that appear when moving between desktop and web delivery.
</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;">π§ </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%2Fdavekiss.com%2Fblog%2Feulogy-for-the-software-engineer%2F%3Futm_source=tldrdev/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/h6MPkubLjjZ_hQXk_LIISnvMdGoiERxLLmSiDD5LP0Y=452">
<span>
<strong>A eulogy for the software engineer (19 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
This essay uses the form of a funeral to reckon with AI making implementation work dramatically cheaper. It argues that engineers remain responsible for judgment, clear definitions of done, and passing hard-won taste on to newcomers.
</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%2Fjoulee.medium.com%2Fwhat-will-make-personal-ai-go-big-e92fbb10aba9%3Futm_source=tldrdev/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/kLw9HhFMpfNYzzJPB5wk56Fio84GXXRiet_K8N4AkGg=452">
<span>
<strong>What will make personal AI go big? (11 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Personal AI needs to feel approachable, earn trust through well-timed permission requests, tackle avoided tasks, and suggest useful next steps. It uses Muse to show why proactive ideas and clear ways to manage ongoing work matter more than generic speed.
</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.elenaverna.com%2Fp%2Fwhat-its-like-to-work-at-an-ai-native%3Futm_source=tldrdev/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/dsknM-8RgrXW2dL9oOZP2-sgr8Ff0fGLBF1IPclGzCE=452">
<span>
<strong>What it's like to work at an AI-native company (13 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
These field notes describe an organization with fewer titles and meetings, more high-impact individual contributors, and agents with human owners responsible for their output. The trade-off is relentless pace, blurrier ownership, and a greater premium on judgment as everyone gains more leverage.
</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;">π</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%2Fgithub.com%2Fdriceroland%2FSearch%3Futm_source=tldrdev/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/Z7_FLqTiMHrebRJHQnc3FyL-OfXZexfaY_CM_bJ9hjE=452">
<span>
<strong>Search (GitHub Repo)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Search is a small, fast, quiet WebKit browser for macOS with an intentionally minimal interface. It uses the system WebKit engine, which keeps the app small and avoids bundling a second browser engine.
</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%2Fgithub.com%2Falchemy-run%2Falchemy%3Futm_source=tldrdev/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/2GPrbnAF9uVFi0wAp7nnb40iylmpikr5c01OwO71zN8=452">
<span>
<strong>Alchemy (GitHub Repo)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Alchemy models cloud infrastructure and application logic as a single type-safe Effect program. It supports AWS and Cloudflare resources, while keeping local development, planning, deployment, testing, and CI in one workflow.
</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%2Fgithub.com%2Fstepfun-ai%2FStep-Code%3Futm_source=tldrdev/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/kSGiRIlMXX2XmD_8P7ELbHkC0eGkozewhicvGwBoNvs=452">
<span>
<strong>Step Code (GitHub Repo)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Step Code is a terminal coding agent that reads code, makes changes, and runs tests. It supports MCP servers, Agent Skills, plugins, multi-agent orchestration, and longer-running task delegation.
</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;">π</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%2Fengineering.fb.com%2F2026%2F09%2F23%2Fsecurity%2Fprivate-processing-meta-ai-glasses%2F%3Futm_source=tldrdev/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/z1HWi-aj7FRhNHnjPBRFlDUaVc-J9f9wkYvhxFZP2xU=452">
<span>
<strong>Bringing Private Processing to Meta AI Glasses (13 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Meta describes using confidential virtual machines and trusted execution environments to run personal-context workloads in the cloud. Remote attestation lets clients verify the code image before sending data, while the design aims to protect memory even from infrastructure operators.
</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.datahaskell.org%2Fblog%2F2026%2F09%2F18%2Fwriting-parquet-files-using-haskell.html%3Futm_source=tldrdev/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/aZMmq9NDGKdFGZx3kYt724m84UUwgmZkgffBFT2K_zE=452">
<span>
<strong>Writing Parquet Files Using Haskell (5 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
This post introduces a Parquet writer in DataHaskell/Dataframe. It centers on the writeParquet function, which takes a dataframe and writes it to Parquet format.
</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%2Fdavekiss.com%2Fblog%2Fi-opened-a-fake-auto-shop-for-ai-agents%2F%3Futm_source=tldrdev/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/6CTQujKZrV_Gah8v0H7zQUT5E4ypgYE0sJqDJB-Gt1E=452">
<span>
<strong>I Opened a Fake Auto Shop for AI Agents (7 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
This experiment creates a fictional garage and sends several AI agents to interact with it. It explores what happens when agents encounter a small business on the open web.
</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;">β‘</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%2Fexpo.dev%2F%3Futm_campaign=53237574-2026.09_ThirdParty_TLDR%26utm_source=tldrdev%26utm_medium=newsletter%26utm_term=headline%26utm_content=QuickLink09252026%26sp=_qCYrW5hEwAsMn1XSaM_sj77/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/6lPFLIIETSqxiyMibOH2QvFSTFa3u11D-CGzGRzKNNs=452">
<span>
<strong>Don't let your agents start on a mobile app from scratch (Sponsor)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Give them building blocks with Expo MCP. AI app builders like Replit, Emergent, and <em>Any</em>thing rely on Expo to ship their customers' mobile apps. Cloud simulators coming soon! <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fexpo.dev%2Fservices%2Fsimulators%3Futm_campaign=53237574-2026.09_ThirdParty_TLDR%26utm_source=tldrdev%26utm_medium=newsletter%26utm_term=cta1%26utm_content=QuickLink09252026%26sp=_qCYrW5hEwAsMn1XSaM_sj77/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/uIEFvR_13oaAagE-jRSm7REoSA2Lz-y2IZByQAGnSw8=452" rel="noopener noreferrer nofollow" target="_blank"><span>Join the waitlist</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.docker.com%2Fblog%2Fmanufacturing-trust-for-ai-agents-keynote%2F%3Futm_source=tldrdev/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/CoKJiVG3RLvEv9paAS6wAfes3EwuPndwx5b3qSlOWak=452">
<span>
<strong>Manufacturing Trust for AI Agents (Website)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Docker outlines microVM-based Sandboxes, OCI-based Sandbox Kits, and Cloud Sandboxes as a way to constrain, package, and extend agent work.
</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.google%2Finnovation-and-ai%2Fmodels-and-research%2Fgoogle-research%2Fgoogle-project-suncatcher-facts%2F%3Futm_source=tldrdev/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/3zLxgpMimMp1vX6mq63C63QX_uChipJMEnsq5L6jP5Y=452">
<span>
<strong>Behind Project Suncatcher, Our Moonshot to Put AI in Space (7 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Google details its first in-orbit TPU test and the research challenges around radiation, cooling, and satellite interconnects for space-based AI compute.
</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.sentry.io%2Fbfcache-metrics%2F%3Futm_source=tldrdev/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/V1LnIzl9AV7dgicLnZFB7ixpYwcs71_h02v7pfqOumE=452">
<span>
<strong>Measuring the Back/Forward Cache with Application Metrics (5 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Sentry explains how its bfcacheMetricsIntegration makes back/forward cache health measurable when ordinary metrics leave cache hits invisible.
</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.braintrust.dev%2Fblog%2Fnitro%3Futm_source=tldrdev/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/wnQiw2XzQQAIPTeSqwh-oIwObBLrY0-FubNxCPPIt5o=452">
<span>
<strong>Faster Queries for Debugging Production Agents with Nitro (4 minute read)</strong>
</span>
</a>
<br>
<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Braintrust describes Nitro, which separates storage and compute concurrency and made full-text trace searches more than twice as fast in a production A/B test.
</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%2F3/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/mAxuopQPrruaGDoEYAR1dwZoYh8mOx_MwTvO31THrAk=452" 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%2F3/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/D7Xc3Mp5wLjEBH8k-qaa5vLRlA2lj-2tJueLLeHoG-E=452" 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? π°
</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/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/w6rBDm5MMBNlCcA1mocFjyy-PMIyV61LvDwupyPegCU=452"><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? πΌ
</p>
<div class="text-block" style="margin-top: 10px;">
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fjobs.ashbyhq.com%2Ftldr.tech/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/j1BjzjyPECTKkKnx3luKYhEIRqeZWn59Yr7FskoHMYQ=452" rel="noopener noreferrer" style="color: #0000EE; text-decoration: underline;" target="_blank"><strong>Apply here</strong></a>,
<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fjobs.ashbyhq.com%2Ftldr.tech%2Fc227b917-a6a4-40ce-8950-d3e165357871/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/jWHXFA4Wrt-_QIUiSPPi3by5fI02VxH94eozc2yP-1o=452" rel="noopener noreferrer" style="color: #0000EE; text-decoration: underline;" target="_blank"><strong>create your own role</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! TLDR is one of <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.linkedin.com%2Ffeed%2Fupdate%2Furn:li:activity:7401699691039830016%2F/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/lILrIWEW9dEJ-Y88X5Exxq-WvmXguvQXkepJ0f8lXZw=452" rel="noopener noreferrer" style="color: #0000EE; text-decoration: underline;" target="_blank"><strong>Inc.'s Best Bootstrapped businesses</strong></a> of 2025.
</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/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/N0OQdUMi67-pn5AIGJTvUlW8kYjJfVt9xr8grQhGr6M=452"><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/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/TatNaLjHx2yt6zQi1wctxRqI9f3V017W5IOG2tnqO3o=452">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=50c83492-b8bf-11f1-a888-c5447589fe5b%26pt=campaign%26pv=5%26spa=1790334058%26t=1790334893%26s=4facc27985c9c03c02b6afb03c9559a6cee89570796007f3ce4261a9d514377f/1/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/qIa-F7yMVQZMT1aBP1-0HDtdgklrqRbRvHF_Gse_jC8=452">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/CI0/010001a0d8467f31-79f0cf5b-8b7f-4b53-9eb2-f9aeb47cbfe7-000000/jTFeX4Y7nSVFg7cdKgxpQvSRBiXUqRt9tOawcQkf-kw=452" style="display: none; width: 1px; height: 1px;">
</body></html>