The perfect tool to fix old code. Ten mantras for writing perfect code. And a perfect case for dumbing down LLMs with code. newsletter.appliedgo.net/archive/2026... #golang

Go 1.26 is out, and what I like most (so far) is the brand new `go fix` command. Forget all you know about the old `go fix` (if you even have been aware of its existence). newsletter.appliedgo.net/archive/2026... #golang

Newsletter = Issue { [ ',' Issue ] } . Issue = Title Content . Title = '# ' Words . Content = Words . Words = { Word [ PS ] } . Word = Letter [ { Letter } ] . Letter = `[A-Za-z]` . PS = '.' | ',' | ' ' | '\n' newsletter.appliedgo.net/archive/2026... #golang

A client judges a contractor by their output, not by how they achieve that output. Your unit tests should do that, too. newsletter.appliedgo.net/archive/2026... #golang

- The Go Developer Survey - How to mock dependencies without a mocking library - Write a compiler The latest Applied Go Weekly Newsletter is here! newsletter.appliedgo.net/archive/2026... #golang

Nah, the gems in the latest Applied Go Weekly Newsletter issue aren't hidden; they're in plain sight. The hidden ones are in the first featured article. newsletter.appliedgo.net/archive/2026... #golang

Make better AI with Go. Make better Go apps with AI. (Heck, or just make silly AI and silly Go apps—just have fun!) appliedgo.net/spotlight/ai... #golang

A programming language's version number that corresponds to the last two digits of the year the version is released is like a blue moon, just rarer. newsletter.appliedgo.net/archive/2026... #golang

I knew you can't trust those AI bros!

I'm not saying this Gin rant will start a flame war, but I've prepared popcorn just in case. 🍿 newsletter.appliedgo.net/archive/2025... #golang

For convenient coding, you need an interpreted language. For writing fast apps, you need a low-level system language. Excuse me, that's complete rubbish. newsletter.appliedgo.net/archive/2025... #golang

If you want to write good, performant software, become friends with the hardware. No, I'm not talking about the Stockholm Syndrome. newsletter.appliedgo.net/archive/2025... #golang

When data comes in, undistilled Get dozens of workers to build Collect the result When they come to a halt And the buffer is readily filled newsletter.appliedgo.net/archive/2025... #golang

- Go turns 16 - How Go and Rust differ - The Go ecosystem in 2025 Another Applied Go Weekly Newsletter issue! newsletter.appliedgo.net/archive/2-4-... #golang

Learning by Reading: Go Projects to learn from newsletter.appliedgo.net/archive/2025... #golang

Matcha FTW! newsletter.appliedgo.net/archive/2025... #golang

Happy birthday to the only two women with elements named after them on the periodic table: #MarieCurie & #LiseMeitner. As I do every year, I will once again repeat my proposal that November 7 should be International #WomenInSTEM Day! #histSTM #chemistry #physics #OnThisDay #OTD #PeriodicTable👩‍🔬🗃️📜

Use these tips and your Go code ships. newsletter.appliedgo.net/archive/2025... #golang

What if you could write shell scripts like a short story (and use Go code in that process)? I tested integrating Go into Atuin Runbooks; find the results in the latest Applied Go Weekly Newsletter. newsletter.appliedgo.net/archive/2025... #golang

Dependencies: Avoid or not? newsletter.appliedgo.net/archive/2025... #golang

A plane's flight recorder is of little use for determining why the plane has been late. Go's flight recorder, on the other hand, is perfectly suited for that kind of investigation! newsletter.appliedgo.net/archive/2025... #golang

“Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius — and a lot of courage to move in the opposite direction.” ― E.F. Schumacher newsletter.appliedgo.net/archive/2025... #golang

Better late than never: The latest Applied Go Weekly Newsletter is here! newsletter.appliedgo.net/archive/2025... #golang

"We're now in a liminal moment, where our tools have outpaced our frameworks for understanding them." – Gian Segato giansegato.com/essays/proba....

git commit -m... Uh, what commit message shall I write... what could I... perhaps... ummm, what did I even change... AI, do you have an idea? newsletter.appliedgo.net/archive/2025... #golang

The world: - The thing you are trying to do - Things causing problems now - Things that will be causing problems soon - Things that are not causing problems –David Adrian

Let the coolest backend language and the hottest AI technologies team up for raving success! newsletter.appliedgo.net/archive/2025... #golang

Blah blah blah... Only chatting with an app is boring. Let's give them some toys to play with! newsletter.appliedgo.net/archive/2025... #golang

Charm_ released Crush, an open-source, multi-model Claude Code alternative. It's the first AI coding tool I know that comes with an honest warning message. (Nerd sniping definition: xkcd.com/356/) github.com/charmbracele... #aicoding #golang

Algorithms are precise, LLMs are wobbly, flaky, hallucinating machines. Would you want to have your code call an LLM and process its replies? Sure you would. newsletter.appliedgo.net/archive/2025... #golang

You might be over-engineering your workflow orchestration. I just shipped a simple Go library that gives you: - Conditional branching - Parallel execution - Retry management - State management - Embedded scripting - Snapshotting interfaces 🚀 github.com/deepnoodle-a... #golang

Go vs JSON: The cards are being reshuffled. The latest Applied Go Weekly Newsletter is here! newsletter.appliedgo.net/archive/2025... #golang

Browsers allow any tab to use the session context of other tabs. Servers have to take measures to protect against the resulting cross-site request forgery (with the help of browsers, to be fair). Go 1.25 makes CSRF protection considerably easier. appliedgo.net/spotlight/cs... #golang

Take notes, but not too many. (Go 1.25 gets a flight recorder.) appliedgo.net/spotlight/go... #golang

Infiltrating a web site through cross-site request forgery (CSRF) becomes harder with Go 1.25. Wait, what? No, protecting a web site against CSRF becomes easier with Go 1.25! newsletter.appliedgo.net/archive/2025... #golang

Know thy limits! Especially inside a container. appliedgo.net/spotlight/go... #golang

WaitGroups in Go will become more convenient and beginner-friendly in Go 1.25, thanks to a small but very effective addition: A Go() method. No more Add()s. No more Done()s. Just one Go() and one Wait(). Nice! appliedgo.net/spotlight/go... #golang

How to leave no traces might be a topic for a spy movie, but software should rather be concerned about how to leave traces—specifically, how to leave the right amount of traces at the right point in time. Like a flight recorder. The latest Applied Go Weekly Newsletter is here!

A surefire way to get into trouble: Attempt to use more resources than you actually have. (Luckily, Go 1.25 becomes much smarter about artificial limits imposed by container runtimes.) The latest Applied Go Weekly Newsletter is here! newsletter.appliedgo.net/archive/2025... #golang

Go is the most hated language. Says Krzysztof Kowalczyk. blog.kowalczyk.info/article/d-20... #golang

Applied Go June Spotlight catchup rally, part 2: Own Your Errors! In which I praise Go's unique, weird, verbose, and wonderful error handling that won't go anywhere. (Originally shared in the Applied Go Weekly Newsletter 2025-06-08) #golang

I'm catching up with publishing Spotlights! The ones from June are still missing on appliedgo•net. (If you have subscribed to my newsletter, you've already seen them.) Starting with the Spotlight from June 1st: Should you use atomic methods over atomic functions? appliedgo.net/spotlight/at... #go

Looking after a herd can be so simple if you could just tell them to go and wait for them to arrive. The latest Applied Go Weekly Newsletter is here! newsletter.appliedgo.net/archive/2025... #golang

Imagine you were in a time bubble ... where time stands still unless all goroutines are blocked and then advances magically ... The latest Applied Go Weekly Newsletter is here! newsletter.appliedgo.net/archive/2025... #golang

Go cross-compiles virtually everywhere ... including your browser. With this quick'n'easy how-to guide, you can create and run a mini Go app in your browser within minutes AND learn how Go can interact with the browser's DOM. appliedgo.net/spotlight/we... #golang

"Admitting Error clears the Score And proves you Wiser than before." – Arthur Guiterman The latest Applied Go Weekly Newsletter is here! newsletter.appliedgo.net/archive/2025... #golang

How can a formula calculate an image of itself? Even weirder, how can this formula calculate an image of everything (as long as the image is a 106x75 b/w bitmap image)? Find out how this formula works and test it out in Go: appliedgo.net/spotlight/tu... #golang

Found this in my parent's attic: An electronic pocket game from 1982! IIRC, I received it as a bonus for subscribing to a magazine. The manual claims the game runs for three months on two LR44 (LR1154) button cells if played for 60 minutes every day. You bet I ordered a pack of cells in an instant!

Few aspects about Go have been as intensely discussed as error handling. Yet, bazillions of proposals for a better error handling syntax have led us nowhere. Consequently, the Go team has decided to pull the plug on error handling discussions and proposals. #golang go.dev/blog/error-s...

sync/atomic has package-level functions, yet every function's documentation recommends using the atomic types' methods instead. Why? The latest Applied Go Weekly Newsletter is here! newsletter.appliedgo.net/archive/2025... #golang