Authors: Svyatoslav Kryukov, Backend Engineer, and Travis Turner, Tech EditorTopics: Rails, React, JavaScriptBuild optimistic UI in Rails with Inertia by updating props before requests complete. Learn the replaceProp pattern, automatic reconciliation, rollback behavior, and history caveats using a k...

When we launched Seer, our AI debugging agent, we built it on a core belief: production context is essential for understanding the complex failure modes of real...

The GDPR (General Data Protection Regulation) places significant restrictions on how you can use tools like Google Analytics to track and collect user…

Hello! One of my favourite things is starting to learn an Old Boring Technology that I’ve never tried before but that has been around for 20+ years. It feels really good when every problem I’m ever going to have has been solved already 1000 times and I can just get stuff done easily. I’ve thought it...

Regular readers of this blog will know that I started a new company. We have put out just a tiny bit of information today, and some keen folks have discovered and reached out by email with many thoughtful responses. It has been delightful. Colin and I met here, in Vienna. We started sharing coffees,...

A recent episode of the Rails Business Podcast was about “striving for ideal code”. The hosts are both typical “Rails Indie” owner/operators: a small team building a small SaaS. They were discussing a new podcast which is out from 37signals called “Recordables”. The discussion was envy for how good ...

The Kimi K2.5 large language model was just released. It has 1 trillion parameters. Roughly speaking, the more parameters, the smarter the model. So it’s pretty smart, and is probably considered “state of the art”. But while the world is playing with fancy trillion-parameter chatbots, I was using sm...

Spaghetti metrics won’t work in the age of AI. Here’s how to create and manage a centralized, consistent metrics framework.

Posted by Prateek Batra, Developer Relations Engineer, Android Adaptive AppsBeyond Phones: How JioHotstar Built an Adaptive UXJioHotstar is a leading streaming platform in India, serving a user base exceeding 400 million. With a vast content library encompassing over 330,000 hours of video on demand...

These seven trends are shaping digital healthcare in 2026. Uncover what they mean for you - and the technologies you need to address them head-on.

These seven trends are shaping digital healthcare in 2026. Uncover what they mean for you - and the technologies you need to address them head-on.

Visiting family in India used to mean sluggish, inconsistent connections to a U.S. homelab. Tailscale Peer Relays meant no more frozen terminals or slow transfers.

Hey! It’s my first post for 2026, and I’m writing to you while watching our driveway getting dug out. I hope wherever you are you are safe and warm and your data is still flowing! This week brings exciting news for customers running GPU-intensive workloads, with the launch of our newest graphics and...

Previously in this series: Agents eventually run out of context. When they do, they crash, and you lose everything mid-task. We’ve been running GPT-5 Codex since Part 1. It scores 0.58 on SWE-bench Verified. We tried Claude Sonnet 4.5 next, which scored 0.6 and ran faster on most tasks. But complex ...

We’re excited to announce our 17th annual Stack Gives Back campaign donations.

GPUs are annoying. Shopify uses SkyPilot to make them less so: one YAML file, multiple clouds, clean development ergonomics.

At times, we need to know precisely how a Linux system is using memory. This article explains how to interpret memory usage using the free command and, more importantly, how to correctly understand the difference between free and available memory on Linux systems.Continue reading...

With each KotlinConf, developers from around the world come together to learn from leading experts, explore the latest industry insights, and engage with the Kotlin community. KotlinConf’25 alone welcomed attendees from over 50 countries. KotlinConf’26 is just a few months away, and we’re excited to...