Hacker News: vrnvu

New comment by vrnvu in "Jujutsu megamerges for fun and profit"

vrnvu — Tue, 21 Apr 2026 07:38:22 +0000

Jujutsu is immutable for public changes by default.

You can force changes with a ‘—ignore-inmutable’ flag.

The Third Hard Problem

vrnvu — Sat, 28 Feb 2026 20:07:58 +0000

Article URL: https://mmapped.blog/posts/48-the-third-hard-problem

Comments URL: https://news.ycombinator.com/item?id=47199646

Points: 2

# Comments: 0

How Dada enables internal references

vrnvu — Fri, 27 Feb 2026 14:58:58 +0000

Article URL: https://smallcultfollowing.com/babysteps/blog/2026/02/27/dada-internal-references/

Comments URL: https://news.ycombinator.com/item?id=47181256

Points: 24

# Comments: 5

New comment by vrnvu in "Racket v9.1"

vrnvu — Wed, 25 Feb 2026 19:39:02 +0000

Brings memories of when I did some chapters of HTDP2 to learn Lisp.

https://htdp.org/2024-11-6/Book/index.html

More accesible than SICP, highly recommended

Does Syntax Matter?

vrnvu — Sun, 22 Feb 2026 14:24:55 +0000

Article URL: https://www.gingerbill.org/article/2026/02/21/does-syntax-matter/

Comments URL: https://news.ycombinator.com/item?id=47111249

Points: 3

# Comments: 0

New comment by vrnvu in "What Is OAuth?"

vrnvu — Sat, 21 Feb 2026 13:01:36 +0000

New comment by vrnvu in "VisualJJ – Jujutsu in Visual Studio Code"

vrnvu — Mon, 02 Feb 2026 08:10:29 +0000

Ditched git for jj a year ago. Never going back.

If anybody is hesitant give it a try!

New comment by vrnvu in "Make.ts"

vrnvu — Thu, 29 Jan 2026 19:48:04 +0000

I really liked the example in OP. I will give Deno and Dax a shot.

New comment by vrnvu in "The Cults of TDD and GenAI"

vrnvu — Thu, 29 Jan 2026 16:05:03 +0000

It's a cycle, design patterns, TDD, the latest framework or language. We keep chasing the next silver bullet, but there isn't one. There's no easy road.

New comment by vrnvu in "Make.ts"

vrnvu — Wed, 28 Jan 2026 14:53:00 +0000

Made me think. Every time I see a “Postman collection” or similar artifacts, my heart skips a bit. Use curl. Run it interactively in the terminal. When it works, move it into a shell script where you can simply check the status code. Voilà, magic! you’ve got yourself a simple but valuable integration test.

Instead of juggling dashboards and collections of requests, or relying on your shell history as Matklad mentions, you have it in a file that you can commit and plug into CI. Win-win.

At some point, that testing shell script can be integrated into your codebase using your working language and build tooling.

New comment by vrnvu in "Tao Te Ching – Translated by Ursula K. Le Guin"

vrnvu — Sat, 24 Jan 2026 19:01:00 +0000

Love this version. I quoted the chapter about Leadership plenty of times at work.

`True leaders are hardly known to their followers.`

New comment by vrnvu in "Observability's past, present, and future"

vrnvu — Mon, 05 Jan 2026 20:25:47 +0000

First. Love that more tools like Honeycomb (amazing) are popping up in the space. I agree with the post.

But. IMO, statistics and probability can’t be replaced with tooling. As software engineering can’t be replaced with no-code services to build applications…

If you need to profile some bug or troubleshoot complex systems (distributed, dbs). You must do your math homework consistently as part of the job.

If you don’t comprehend the distribution of your data, the seasonality, noise vs signal; how can you measure anything valuable? How can you ask the right questions?

Software Acceleration and Desynchronization

vrnvu — Mon, 05 Jan 2026 14:48:13 +0000

Article URL: https://ferd.ca/software-acceleration-and-desynchronization.html

Comments URL: https://news.ycombinator.com/item?id=46499345

Points: 5

# Comments: 0

New comment by vrnvu in "The Second Great Error Model Convergence"

vrnvu — Tue, 30 Dec 2025 17:21:10 +0000

> On the one hand, at lower-levels you want to exhaustively enumerate errors...

> On the other hand, at higher-levels, you want to string together widely different functionality from many separate subsystems without worrying about specific errors...

I feel like the Rust ecosystem of crates has naturally grown to handle these two ideas pretty well. `anyhow` for applications, `thiserror` for libraries.

Programming vs. Coding vs. Software Engineering (2019)

vrnvu — Sat, 27 Dec 2025 14:41:53 +0000

Article URL: https://rakhim.exotext.com/programming-vs-coding-vs-software-engineering

Comments URL: https://news.ycombinator.com/item?id=46402164

Points: 2

# Comments: 0

New comment by vrnvu in "System Observability: Metrics, Sampling, and Tracing"

vrnvu — Mon, 15 Dec 2025 09:58:45 +0000

> Metrics are simple, extremely cheap

You clearly haven’t seen our Datadog invoice :)

Jokes aside, I liked the idea of listing things by level of detail.

One related issue I run into all the time is how context gets lost when moving between layers. You start with host metrics, then Kubernetes wraps the host and overrides the tags, and suddenly you can’t filter host metrics by node anymore. Watch out.

New comment by vrnvu in "Golang optimizations for high‑volume services"

vrnvu — Thu, 11 Dec 2025 20:30:55 +0000

My first thought: Controlling allocations and minding constraints... honestly, that's engineering stuff all services should care about. Not only "high-volume" services.

Social Architecture – The Toolbox

vrnvu — Thu, 11 Dec 2025 18:51:59 +0000

Article URL: https://hintjens.gitbooks.io/social-architecture/content/chapter1.html

Comments URL: https://news.ycombinator.com/item?id=46235407

Points: 2

# Comments: 0

New comment by vrnvu in "Jepsen: NATS 2.12.1"

vrnvu — Mon, 08 Dec 2025 19:23:12 +0000

Sort of related. Jepsen and Antithesis recently released a glossary of common terms which is a fantastic reference.

https://jepsen.io/blog/2025-10-20-distsys-glossary

Why PyTorch is an amazing place to work and Why I'm Joining Thinking Machines

vrnvu — Thu, 04 Dec 2025 18:02:27 +0000

Article URL: https://www.thonking.ai/p/why-pytorch-is-an-amazing-place-to

Comments URL: https://news.ycombinator.com/item?id=46150699

Points: 1

# Comments: 0