# testing (blogs) — RSS Amplifier Recent posts from the 501 feeds in the RSS Amplifier directory that cover testing. Page: Feed: --- ## [Mass Assignment: The Field the UI Never Shows You](https://www.kayssel.com/newsletter/issue-64) _2026-08-22 · Ruben Santos · Kayssel - Offensive Security Blog_ Auto-binding abuse, injecting is\_admin and role fields for privilege escalation, hidden parameter discovery, and HTTP Parameter Pollution ## [Fine-Grained Shader Validation in Three.js](https://ben3d.ca/blog/fine-grained-shader-validation-in-threejs) _2026-08-22 · Ben Houston's Website_ How Three.js now validates individual TSL shader expressions on WebGPU and WebGL2, with numeric diagnostics, deterministic input sampling, and support for vectors and matrices. ## [Testing my new seek logic for the Virtual 2315 Cartridge Facility - part 14](https://rescue1130.blogspot.com/2026/08/testing-my-new-seek-logic-for-virtual_0734107409.html) _2026-08-21 · Carl Claunch · Rescue 1130: 2014 Pickup of an IBM 1130 System and More_ ADJUSTING THE DISK DRIVE SEEK SETTINGS I wired up a number of disk drive signals to the oscilloscope. The amplifier balance and dead band adjustments were previously completed. The operation of the trigger that stops the acceleration of the disk arm so that it comes to a stop .01 or .02 inches from its prior position has to be adjusted. Each of the two step sizes, 10 mil and 20 mil, have their own… ## [Norway Is Not a Boolean](https://llbbl.blog/2026/08/21/norway-is-not-a-boolean.html) _2026-08-21 · LLBBL Blog_ JSON's problem is that its specification is too small. It tells you 9007199254740993 is a well-formed number and then declines to say which number. YAML went the other way. The 1.2.2 specification is a book. It has a formal grammar, a chapter on recommended schemas, and an answer for nearly everything. And it will still read your config file and decide, without asking, that Norway is false. The… ## [Spy Photos: 2028 Mercedes-AMG E 63 Successor Goes Fully Electric](https://www.autoevolution.com/news/spy-photos-2028-mercedes-amg-e-63-successor-goes-fully-electric-274496.html) _2026-08-21 · autoevolution (Mircea Panait) · autoevolution spyshots and car scoops_ After months of radio silence that left AMG enthusiasts wondering if development had stalled in Affalterbach, spy photos captured at the Nurburgring reveal a zero-emission take on the E 63 high-performance sedan. Replacing the AMG-branded EQE in the German automaker's lineup, this model is certain to polarize opinion. For purists who found the company's recent dedicated EV designs a bit… ## [Why Your Next API Call Should Come From an Agent, Not a Postman Collection](https://robintegg.com/2026/08/21/why-your-next-api-client-should-be-an-ai-agent-not-a-postman-collection.html) _2026-08-21 · Robin Tegg · Robin Tegg_ I see value shifting from maintaining Postman collections to letting agents derive API calls from intent, contracts, and live responses. ## [Flow Design](http://theprogrammersparadox.blogspot.com/2026/08/flow-design.html) _2026-08-20 · Paul W. Homer · The Programmer's Paradox_ One of the pitfalls in software design is for people to only concentrate on the narrow case where everything works as desired, but ignore all of the other cases where it has gone partially or totally wrong. Data flow analysis can help avoid this. The idea is that given some complex scenario for software mechanics, we can fully iterate all of the issues in advance, so we know what we need to solve.… ## [Your JSON Parser Disagrees With Mine](https://llbbl.blog/2026/08/20/your-json-parser-disagrees-with.html) _2026-08-20 · LLBBL Blog_ Markdown has too many specs. CSV has one that nobody agreed to follow. JSON is supposed to be the happy ending: a grammar small enough to print on a business card, standardized twice over, and elevated to a full Internet Standard. It is, and the parsers still disagree with each other about what your file says. Not about whether it's valid. About what the values are. The Same Number, Three Answers… ## [Flow Design](http://theprogrammersparadox.blogspot.com/2026/08/flow-design.html) _2026-08-20 · Paul W. Homer · The Programmer's Paradox_ One of the pitfalls in software design is for people to only concentrate on the narrow case where everything works as desired, but ignore all of the other cases where it has gone partially or totally wrong. Data flow analysis can help avoid this. The idea is that given some complex scenario for software mechanics, we can fully iterate all of the issues in advance, so we know what we need to solve.… ## [Spy Photos: BYD's 2027 Denza Z9 GT Xtreme Shows Crazy Aero Upgrades](https://www.autoevolution.com/news/spy-photos-byd-s-2027-denza-z9-gt-xtreme-shows-crazy-aero-upgrades-274434.html) _2026-08-20 · autoevolution (Mircea Panait) · autoevolution spyshots and car scoops_ The carparazzi near Germany's famed Nordschleife have captured a jaw-dropping development vehicle. Wrapped in blue-and-purple camo, this isn't your standard Z9 GT. Believed to be gifted with the Xtreme suffix, the ultra-hardcore track version of the Chinese shooting brake takes performance far beyond executive wagon duties. Engineered by Chinese giant BYD, the forthcoming model supposedly packs… ## [Find it on Amazon (Sponsored)](https://crawlproof.com/a/eUfUzDdXzWTa) _2026-08-20 · **Sponsored**_ Open the Amazon product listing to see details and availability ## [The Hardware Store and the Cost of Software Maintenance](https://the.codegardener.com/the-hardware-store-and-the-cost-of-software-maintenance/) _2026-08-20 · Alan Ridlehoover · The Code Gardener_ So, who knew a trip to the hardware store would lead me to a theory about how to calculate a team's velocity, not in story points, but in complexity points? ## [Work on the internal disk drive of IBM 1130 - part 3](https://rescue1130.blogspot.com/2026/08/work-on-internal-disk-drive-of-ibm-1130_02126230172.html) _2026-08-19 · Carl Claunch · Rescue 1130: 2014 Pickup of an IBM 1130 System and More_ CHECKING 257 TRANSISTOR FROM DONOR SLT CARD I put the transistor that I pulled off a spare card and tested it with my curve tracer. I compared it to the two transistors on the M2/M3 card which made the weak/failing transistor obvious. Apparently Germanium power transistors can fail gradually with the gain increasing until there is a complete failure. The base junction is thinned out by tin… ## [Nobody Agrees What a CSV Is](https://llbbl.blog/2026/08/19/nobody-agrees-what-a-csv.html) _2026-08-19 · LLBBL Blog_ CSV is simple but powerful. Values, separated by commas. It's easy to understand and use. It is also, by a wide margin, the one that destroys the most data. That's not a paradox. It's cause and effect. A format simple enough that everyone writes their own parser is a format with as many dialects as it has parsers, and CSV's defining property is that it carries no information about how to read it.… ## [New Rules for Single-Employer Defined Benefit Plans](https://burypensions.wordpress.com/2026/08/19/new-rules-for-single-employer-defined-benefit-plans/) _2026-08-19 · burypensions · Burypensions Blog_ The Federal Register today included proposed regulations that would modify rules in the existing regulations relating to the minimum funding requirement applicable to single-employer defined benefit pension plans. The modifications include changes tothe rules relating to the determination of a plan’s target normal cost and funding target and would implement certain statutory amendments that have… ## [Work on the internal disk drive of IBM 1130 - part 2](https://rescue1130.blogspot.com/2026/08/work-on-internal-disk-drive-of-ibm-1130_01221005376.html) _2026-08-19 · Carl Claunch · Rescue 1130: 2014 Pickup of an IBM 1130 System and More_ INVESTIGATING THE REASON THE VOICE COIL IS ENERGIZED AT ALL TIMES The internal disk drive of the 1130 has a disk arm that is moved by a linear voice coil, much like an audio speaker. It should only be active when the drive is attempting to move .01 or .02" at a time. The circuit will energize it in the movement direction, then switch the current direction to decelerate it after a tachometer shows… ## [2027 Mercedes-AMG GLA Electric Sheds More Camo Now That the Donor Benz Is Out in the Wild](https://www.autoevolution.com/news/2027-mercedes-amg-gla-electric-sheds-more-camo-now-that-the-donor-benz-is-out-in-the-wild-274390.html) _2026-08-19 · autoevolution (Cristian Agatie) · autoevolution spyshots and car scoops_ At the end of July, Mercedes-Benz unveiled the "civilian" variant of the GLA in its full glory. The AMG division therefore sees little sense in keeping its own performance GLA variant under heavy camouflage. A recent encounter shows the upcoming Mercedes-AMG GLA Electric with only light camo covering the front, rear, and side skirts, where most aerodynamic upgrades reside. We've been following… ## [Spy Photos: 2027 BMW i3 Touring Prototype Gets Caught Testing Hard on the Nürburgring Nordschleife](https://www.autoevolution.com/news/spy-photos-2027-bmw-i3-touring-prototype-gets-caught-testing-hard-on-the-nuerburgring-nordschleife-274371.html) _2026-08-19 · autoevolution (Aurel Niculescu) · autoevolution spyshots and car scoops_ Currently, BMW has four model series that are part of, in full or only partially, the Neue Klasse releases, and the Bavarians work hard to expand the offer as fast as they can. Everything started last fall with the official introduction of the second-generation NA5 BMW iX3 battery electric compact luxury crossover SUV, which has the all-new, dedicated Neue Klas... ( continue reading... ) ## [How PHP executes bytecode](https://phpunit.expert/articles/how-php-executes-bytecode.html) _2026-08-19 · sebastian@thephp.cc · Software Development, Testing & Open Source_ The Zend Engine ships five different bytecode executors, three of which are actually used. I look at how they differ, why they exist, and what all of this has to do with branch prediction in your processor. ## [Postgres as an isolation reference model](https://rednafi.com/system/pg-isolation-ref/) _2026-08-19 · Redowan Delowar · Redowan's Reflections_ Use PostgreSQL's transaction isolation levels as a reference model for reasoning about the guarantees and tradeoffs of other relational and non-relational databases. ## [So you received a security report. Now what?](https://thephp.foundation/blog/2026/08/19/so-you-received-a-security-report-now-what) _2026-08-18 · sebastian@thephp.cc · Software Development, Testing & Open Source_ A guide for PHP project maintainers, from the PHP Foundation Ecosystem Security Team. ## [Non-Custodial Crypto Gateway (Sponsored)](https://crawlproof.com/a/hgeBti5JaW8V) _2026-08-18 · **Sponsored**_ Accept multi-chain crypto, automated fee handling, and trustless escrow with real-time settlement. ## [iOS 27 Support](https://testrigor.com/releases/ios-27-support/) _2026-08-18 · Heather Brooks · testRigor AI-Based Automated Testing Tool_ iOS 27 Support Our team has added support for devices running iOS 27. You can select these devices when creating a test suite or add them later through the test suite settings. The post iOS 27 Support appeared first on testRigor AI-Based Automated Testing Tool . ## [Word Documents Used to Be Filesystems](https://llbbl.blog/2026/08/18/word-documents-used-to-be.html) _2026-08-18 · LLBBL Blog_ Last post ended on a promise: a .docx is a ZIP file, and you already know how ZIP works. That's true, and it's the smaller half of the story. The interesting part is what .docx replaced, because the old .doc format was doing something strange. It wasn't a document. It was a filesystem with a document living inside it. A Filesystem in a File Here's a real .doc from 2015, 10,240 bytes. The first… ## [Tests Live on the Edges](https://testerstories.com/2026/08/tests-live-on-the-edges/) _2026-08-18 · Jeff Nyman · Stories from a Software Tester_ This is a follow-on to my previous post about what it looks like when a developer tests. Same project, next … More Tests Live on the Edges → ## [Spy Photos: 2027 Aston Martin Vanquish S Flaunts More Exhaust Pipes Than Regular Vanquish](https://www.autoevolution.com/news/spy-photos-2027-aston-martin-vanquish-s-flaunts-more-exhaust-pipes-than-regular-vanquish-274338.html) _2026-08-18 · autoevolution (Mircea Panait) · autoevolution spyshots and car scoops_ Packing no fewer than 824 horsepower and 738 pound-feet (1,000 Newton-meters) of torque, Aston Martin's latest iteration of the Vanquish will soon get even punchier. A model that refuses to bow to electrification, the rear-drive grand tourer will also sharpen its proverbial blade with suspension upgrades and more downforce than ever before, thus creating the Vanquish S. The latest spy pics reveal… ## [AI coding tools unlock small software](https://kirahowe.com/2026/aug/18/ai-coding-tools-unlock-small-software) _2026-08-18 · Kira Howe_ I can now hand much of the mechanical work to an AI coding tool, then spend my time fixing the interesting parts. This has been my experience with vibe coding too. On the surface, my coding agents can produce incredible apps very quickly. Once I start actually trying to use them, there are endless paper cuts to fix. Programming becomes part of using a computer, whether the user calls it… ## [LonghornPHP 2026](https://www.php.net/conferences/index.php#2026-08-18-1) _2026-08-18 · PHP.net news & announcements_ ## [Baby Aston Martin Gaining More Muscle, Vantage RS Caught With Aero Upgrades](https://www.autoevolution.com/news/baby-aston-martin-gaining-more-muscle-vantage-rs-caught-with-aero-upgrades-274320.html) _2026-08-18 · autoevolution (Cristian Gnaticov) · autoevolution spyshots and car scoops_ Aston Martin's new-age Vantage is two years away from blowing ten candles off its birthday cake. That's because production of the current generation started at the Gaydon factory in Warwickshire, UK, back in 2018. So far, the British exotic automaker has constantly refined the lineup, introducing numerous special mode... ( continue reading... ) ## [Fixing Old Software Bugs Without Thinking](https://ronaldbradford.com/blog/2026-08-18-fixing-old-software-bugs-without-thinking/) _2026-08-18 · Ronald Bradford - Data Architect, MySQL Expert, Author & Speaker on Enterprise Data Architect | Principal Data Strategist | MySQL Subject Matter Expert | Author | Speaker_ I previously came across an issue in my benchmarking work where I relied on the Latency Histogram section of sysbench output. On Linux it worked fine — I generally ran my workload there, so it never mattered. ## [ZIP Files Are Read Backwards](https://llbbl.blog/2026/08/17/zip-files-are-read-backwards.html) _2026-08-17 · LLBBL Blog_ Every format in this series so far reads front to back. PNG starts with a signature and you walk chunks in order. A text file is bytes from the beginning. Markdown parsers scan line by line, top to bottom. ZIP reads backwards. The index is at the end of the file, and a reader is expected to seek to the end first and work its way back. That one decision explains almost everything strange about ZIP,… ## [Turn And Face The Strange](https://kirahowe.com/2026/aug/17/turn-and-face-the-strange) _2026-08-17 · Kira Howe_ This was a great piece about what’s going on with fly.io. It’s by far my favourite way to deploy my apps these days, and I hope they make it. I’m going to overshare some more in a second, but I won’t leave you hanging. So: we’ve raised a bunch more money. We’re launching a new iteration of Sprites, and focusing the company on them and the problem they solve. And I’m tagging in Scott Johnston as… ## [Ship software peacefully (Sponsored)](https://crawlproof.com/a/dtNqLlO1IdGh) _2026-08-17 · **Sponsored**_ Connect your repo and deploy instantly — Railway handles config, scaling, and monitoring. ## [Turn And Face The Strange](https://kirahowe.com/2026/aug/17/turn-and-face-the-strange) _2026-08-17 · Kira Howe_ This was a great piece about what’s going on with fly.io. It’s by far my favourite way to deploy my apps these days, and I hope they make it. I’m going to overshare some more in a second, but I won’t leave you hanging. So: we’ve raised a bunch more money. We’re launching a new iteration of Sprites, and focusing the company on them and the problem they solve. And I’m tagging in Scott Johnston as… ## [A language has non-functional requirements, too](https://phpunit.expert/articles/a-language-has-non-functional-requirements-too.html) _2026-08-17 · sebastian@thephp.cc · Software Development, Testing & Open Source_ Nobody decides whether a language is modern. What gets decided is whether you can bet a decade on it: who owns it, how upgrades arrive, how it scales, and whether you can still hire for it in year six. This article holds PHP to the criteria an architecture decision is actually made on. ## [Kubernetesで作る全社PRプレビュー基盤の設計判断](https://techblog.enechain.com/entry/intro-prothea) _2026-08-17 · enechain Tech Blog_ こんにちは！Platform Engineeringチームの Taiki です。enechainでは、Pull Requestを作成するとプレビュー環境が自動で立ち上がり、動作確認や検証を高速化・効率化できるプラットフォームを、Kubernetesカスタムコントローラーとして開発・運用しています。社内ではこのプラットフォームをprothea (プロテア)と呼んでいるので 1 、記事中でもこの名前で呼びます。 protheaの特徴は3つあります。複数のプロダクト間で一貫してプレビューできること、プレビュー毎にユニークなURLが払い出され共有しやすいこと、Platform Engineeringのアプローチで認知負荷を吸収し、高いDevExを実現していることです。今回の記事では、その概要や設計上の意思決定を紹介します。 背景 enechainのテクノロジースタック protheaのユニークな点… ## [How to Use Three.JS's new Native Gaussian Splats](https://ben3d.ca/blog/how-to-use-threejs-native-gaussian-splats) _2026-08-17 · Ben Houston's Website_ How to use Three.js's native Gaussian Splatting support (GaussianSplatMesh, SPZLoader) — loading .spz/.ksplat/.splat/glTF splats, picking a file format, and a full capture-to-render workflow with Polycam, Luma AI, and SuperSplat. ## [Curating DuckDB Datasets Leveraging AI](https://ronaldbradford.com/blog/2026-08-17-curating-duckdb-datasets-leveraging-ai/) _2026-08-17 · Ronald Bradford - Data Architect, MySQL Expert, Author & Speaker on Enterprise Data Architect | Principal Data Strategist | MySQL Subject Matter Expert | Author | Speaker_ In Curated MySQL Data Sets for Realistic Testing I described datasets assembled the manual way — download, schema, load, validate, document — over hours or days per source. This post is the follow-up I promised: what changes when AI assists the same workflow, using DuckDB as the target engine and GeoNames as the first example. ## [Work on the internal disk drive of IBM 1130 - part 1](https://rescue1130.blogspot.com/2026/08/work-on-internal-disk-drive-of-ibm-1130.html) _2026-08-16 · Carl Claunch · Rescue 1130: 2014 Pickup of an IBM 1130 System and More_ RESTORED 1130 POWER RAIL LEVEL LEADING TO NEW SYMPTOMS When working on the disk drive attempting to make the adjustments for seek behavior, I checked the voltage at a pin that the Field Engineeering Maintenance Manual (FEMM) suggested be tested. The expected level was 8V but I found it at 6.2V. I verified the incoming power rails - +3V, -3V and +6V - only to find that the last was only at 5V. I… ## [Markdown Is Not a Format, It's an Argument](https://llbbl.blog/2026/08/16/markdown-is-not-a-format.html) _2026-08-16 · LLBBL Blog_ I’ve covered PNG and text files, and now it’s time for Markdown, which can be thought of as a philosophy of formatting or a lifestyle of text documents more so than an actually well defined file format. It has structure, and it has specifications, plural, and nothing agrees. Here is three lines of Markdown run through five parsers: INPUT: '- outer\\n - inner\\n' Python-Markdown \… ## [CB/DC Combo Plan Testing – The Book](https://burypensions.wordpress.com/2026/08/16/cb-dc-combo-plan-testing-the-book/) _2026-08-16 · burypensions · Burypensions Blog_ The CB blog series is now a book. For $73, including shipping, intorealpages turned those twenty blog posts into something for me to refer to or send to those who might be curious about the details of 401(a)(4) testing with a note to read this first . ## [Testing my new seek logic for the Virtual 2315 Cartridge Facility - part 13](https://rescue1130.blogspot.com/2026/08/testing-my-new-seek-logic-for-virtual_01044164505.html) _2026-08-16 · Carl Claunch · Rescue 1130: 2014 Pickup of an IBM 1130 System and More_ ASSEMBLED NEW VERSION OF 2310 INTERFACE BOARD The Virtual 2315 Cartridge Facility (V2315CF) has a component that is a board that interconnects the cables from the IBM 1130 disk controller logic, the internal disk drive, and the main V2315CF unit, as well as a few other functions. I adjusted the design to include electronic switches that connected the signals between the internal disk and the disk… ## [Reading Code Considered Helpful](https://kirahowe.com/2026/aug/16/reading-code-considered-helpful) _2026-08-16 · Kira Howe_ It's difficult to find reasonable, pragmatic takes on using coding agents these days. Ray Myers is a good voice in that space right now and I thought this was a great survey of what people in the industry are actually saying about reading AI-generated code. but those seem like weak-sauce countermeasures \[my addition for clarity: (training employees to recognize LLM manipulation and deploying… ## [I Sent Grok Bot to Buy My Gluten-Free Beer](https://debbie.codes/blog/i-sent-grok-bot-to-buy-my-gluten-free-beer) _2026-08-16 · debbie@debbie.codes (Debbie O'Brien) · Debbie Codes_ I ran out of gluten-free beer on a Sunday night and asked my Grok Bot chief of staff to buy more. Amazon rolls bought from my phone, an Alcampo login that would not click, a morning podcast, and a delivery slot I can keep adding to. ## [Why INSERT IGNORE should not be used](https://ronaldbradford.com/blog/2026-08-16-why-insert-ignore-should-not-be-used/) _2026-08-16 · Ronald Bradford - Data Architect, MySQL Expert, Author & Speaker on Enterprise Data Architect | Principal Data Strategist | MySQL Subject Matter Expert | Author | Speaker_ Let’s say you’re building a reference table from source data, e.g. a silver medallion table from a primary source. In this example I am using a file of random locations on the globe extracted from OpenStreetMap (OSM) as my primary source. ## [Coverage suppression merged into GCC](https://patch.no/blog/2026-08-16-coverage-suppression-merged-into-gcc/) _2026-08-16 · patch – patch_ A few days ago I pushed support for coverage suppression in GCC. Sometimes we write very defensive guards, especially in debug builds (like asserts), that are intended to never trigger because they signal a logic bug elsewhere. It’s hard to argue that defensive code and asserts isn’t excellent, but they paradoxically introduce a problem for coverage since we now introduce decisions and… ## [Thinking about tests: assertions and matchers](https://zverok.space/blog/2026-08-16-assertions-and-matchers.html) _2026-08-16 · zverok's space_ Why some of us are still bothered about the way we write tests and what the “matcher” concept has to do with it. During most of my Ruby career, I was that unpleasant person who honestly enjoys writing tests and is frequently concerned about the ways we write them. This means treating unit tests like the rest of the codebase: like something that is supposed to be read by humans and something that… ## [Syncing Gmail with mbsync using OAuth2](https://piware.de/post/2026-08-16-mbsync-gmail-xoauth2/) _2026-08-16 · Martin Pitt_ I wholeheartedly dislike GMail (ethically, technically, and UX), and for my personal email I have always run my own server. But for work email I don’t have a choice. I am using isync/mbsync to make it usable for me and mutt. Until now I’ve used a Google app password to authenticate, but they are a security nightmare. OAuth2 is a better way. Sadly the interwebs have only scarce,… ## [There Is No Such Thing as a Text File](https://llbbl.blog/2026/08/15/there-is-no-such-thing.html) _2026-08-15 · LLBBL Blog_ Last time I took apart PNG, which opens with eight bytes whose entire job is to announce “I am a PNG”. A text file opens with nothing. No signature, no header, no length field, no version, no metadata. It is bytes, and then it stops. So this post is the opposite of the last one. Instead of walking a structure, we’re going to look at what happens when there isn’t one. POSIX… ## [Stack Overflows to ROP: Beating NX, Canaries, ASLR](https://www.kayssel.com/newsletter/issue-63) _2026-08-15 · Ruben Santos · Kayssel - Offensive Security Blog_ Overwriting the return address, ret2libc past NX, ROP gadget chains, leaking stack canaries, and defeating ASLR with a puts/GOT libc leak ## [What Constitutes Clean Data?](https://ronaldbradford.com/blog/2026-08-15-what-constitutes-clean-data/) _2026-08-15 · Ronald Bradford - Data Architect, MySQL Expert, Author & Speaker on Enterprise Data Architect | Principal Data Strategist | MySQL Subject Matter Expert | Author | Speaker_ Clean data is one of those terms everyone uses and few define precisely. Row counts match? No nulls in key columns? Values within expected ranges? All useful checks — and all insufficient once you move from a table view to a visualization view. ## [Industrial Control System Security Guide](https://unclesp1d3r.github.io/posts/industrial-control-system-security-guide/) _2026-08-14 · UncleSp1d3r Blog_ How ICS and SCADA environments actually get breached, network segmentation, weak authentication, unpatched legacy software, thin monitoring, and vulnerable remote access, paired with the real incidents (Triton, Mirai, WannaCry, Stuxnet, Oldsmar, the Ukrainian grid attack) that show each failure mode in production. ## [How PNG Actually Stores Your Pixels](https://llbbl.blog/2026/08/14/how-png-actually-stores-your.html) _2026-08-14 · LLBBL Blog_ I’m starting a series on file formats. Not “here are the ten image formats you should know,” but the actual bytes: what’s in the file, in what order, and why someone decided it should be that way. Starting with PNG, because it’s the format most developers touch every day and almost nobody has looked inside. I am likely to cover a few things that other explainer…