Teiva Harsanyi

Is it that good?

Why I Switched to Vim Keybindings (And Why You Might Want To) After switching to Vim keybindings, I found I was not only consistent in my editing but faster than ever.

Why I Switched to Vim Keybindings
www.thecoder.cafe/p/vim-keybin...

All I really want is to spend my life learning new things and sharing them with others.

What Makes Code Beautiful: The Beauty of Average Code The more average the code, the more pleasurable it is to read and maintain.

What Makes Code Beautiful: The Beauty of Average Code
www.thecoder.cafe/p/what-makes...

Soft vs. Hard Dependency: A Better Way to Think About Dependencies for More Reliable Systems Turning hard dependencies into soft ones is one of the most effective ways to improve the reliability of a system.

A better way to think about dependencies for more reliable systems

Soft vs. Hard Dependency
www.thecoder.cafe/p/soft-hard-...

Duplication Is Not the Enemy We’re taught to eliminate duplication at all costs. But the wrong abstraction is far more expensive than a little copy-paste. Here’s why.

Duplication Is Not the Enemy by @terriblesoftware.org
terriblesoftware.org/2025/05/28/d...

An amazing post on the concepts of duplication and abstraction.

It's an amazing post. One of the best I've read lately.

Keeping a Mistake Journal: How to Learn From Your Errors Research suggests that reflecting on errors is one of the most effective ways to reinforce learning.

Research suggests that reflecting on errors is one of the most effective ways to reinforce learning.

Keeping a Mistake Journal
www.thecoder.cafe/p/mistake-jo...

The Hidden Cost of Skipping the Fundamentals in the Age of AI

codingismycraft.blog/index.php/20...

[New post] Property-Based Testing: Moving Beyond Traditional Tests

"Traditional tests don’t guarantee a bug-free system; a passing test only confirms that the tested scenario behaves as expected."

www.thecoder.cafe/p/property-b...

The Coder Cafe | Teiva Harsanyi | Substack Feeling overwhelmed by the endless stream of tech content? At The Coder Cafe, we serve timeless concepts with your coffee. Written by a Google SWE and published author, we help you grow as an engineer...

🎉 The Coder Cafe just hit 2,000 subscribers! thecoder.cafe
I'm very pleased with the growth and support, thank you all.

Also, this week, the newsletter was recommended by @pragmaticengineer.com newsletter.pragmaticengineer.com/recommendati...
Truly incredible...

A leap year check in three instructions
hueffner.de/falk/blog/a-...

😆

1/1
Pure luck.

That’s the 3rd time in my last 8 posts on thecoder.cafe that one made it to Hacker News front page.
🧵 A thread on how I did it.

Writing bad alerts

Don’t Forget About Your Mental Health: Prioritizing Your Mind in a Culture of Hustle Taking care of our minds isn’t optional: it’s a critical part of the process to keep growing over time.

Don’t Forget About Your Mental Health
www.thecoder.cafe/p/mental-hea...

📣 New blog post
Working on Complex Systems: What I Learned Working at Google

www.thecoder.cafe/p/complex-sy...

I just published Ford-Fulkerson Algorithm: A Step-by-Step Guide to Max Flow

thecoder.cafe/p/ford-fulke...

Yeah, we don’t have the same definition then.

Man, no need to be mean because we're on the Internet.
If you have any advice to improve it, I'd love to hear it.

🎉 1,000 Subscribers, 1 Coding Challenge We just hit a big milestone at The Coder Cafe! To celebrate, we’re launching our own Discord server and kicking off a coding challenge with prizes.

We just hit 1,000 subscribers at The Coder Cafe! 🥳🎉

To celebrate, we're launching a coding challenge with about $1,000 in prizes provided by our great supporters: Keychron, @pragmaticengineer.com, @intellijidea.com, & @oreilly.bsky.social

Check out www.thecoder.cafe/p/1000

RT appreciated ❤️

Bloom Filters: A Memory-Saving Solution for Set Membership Checks Bloom filters offer a space-efficient solution for checking set membership, trading accuracy for reduced memory usage.

Bloom Filters
www.thecoder.cafe/p/bloom-filt...

I've added on my website a section on my personal book recommendations:
teivah.dev/books/

But what if I really want a faster horse?
rakhim.exotext.com/but-what-if-...

Thank you very much 😊

Thanks, Cynthia!
Great cover 😂

Merci :)

So, I Wrote a Book The Story Behind 100 Go Mistakes and How to Avoid Them

📢 It took me a while to be ready to share this, but here it is:

So, I Wrote a Book: The Story Behind 100 Go Mistakes and How to Avoid Them

thecoder.cafe/p/100-go-mis...

proposal: runtime: CPU limit-aware GOMAXPROCS default · Issue #73193 · golang/go Overview Change the Go runtime on Linux to use CPU cgroup quota limits to set the default value of GOMAXPROCS. This is a concrete proposal for the ideas discussed in #33803. I've included a lot of ...

I’ve filed a proposal to make GOMAXPROCS aware of container CPU limits by default! Please take a look and provide feedback if this is something you care about!

go.dev/issue/73193