Hacker News: HenriTEL

New comment by HenriTEL in "Show HN: Gitdot – A better GitHub. Open-source, written in Rust"

HenriTEL — Tue, 09 Jun 2026 10:00:36 +0000

looks bad on desktop too, most content being uncentered (spread at the edges of the screen).

New comment by HenriTEL in "The Last Technical Interview"

HenriTEL — Sat, 30 May 2026 20:55:27 +0000

Without a way to estimate "AI power" used for the task I don't see how you can fairly rate home assignments.

New comment by HenriTEL in "Green card seekers must leave U.S. to apply, Trump administration says"

HenriTEL — Sat, 23 May 2026 22:27:50 +0000

Not an expert but I'm pretty sure that constitution > statutes and ordinances > rules and regulations. Meaning that USCIS must follow the intent of the law when publishing regulations. In the case of H1B the law is clear that it gives a specific status of temporary worker distinct to the immigrant status. USCIS itself acknowledges it:

https://www.uscis.gov/newsroom/news-releases/us-citizenship-...

> Our system is designed for them to leave when their visit is over. Their visit should not function as the first step in the Green Card process.

New comment by HenriTEL in "GitHub RCE Vulnerability: CVE-2026-3854 Breakdown"

HenriTEL — Wed, 29 Apr 2026 12:28:46 +0000

So they had a security-critical header whose fields are set by their internal authentication service. And that same field can also contain arbitrary strings passed by the end user with git push -o

I know it's easy to say after the fact but still, wtf

New comment by HenriTEL in "Ask HN: Who wants to be hired? (March 2026)"

HenriTEL — Tue, 10 Mar 2026 19:47:07 +0000

  Location: Paris, France
  Remote: Yes
  Willing to relocate: No
  Technologies: Python, AWS, Rust, kubernetes, terraform, linux
  Résumé/CV: https://www.linkedin.com/in/henrihannetel/
  Email: henri.hannetel+hn@pm.me

Backend engineer with 9 years experience building systems on AWS. Recently exploring Rust for high-performance services and infrastructure.

New comment by HenriTEL in "I tried building my startup entirely on European infrastructure"

HenriTEL — Fri, 20 Feb 2026 11:01:52 +0000

Ah yes, MinIO, that open source S3 alternative that got archived last week. To me that's the biggest problem when self-hosting services. On day to day operations, some times it just breaks and the time to get it back varies from a couple of hours to a couple of days. And for the longer term you regularly have to upgrade things yourself which takes time and energy and is stressing for stateful deployment. And then you have it, at some point maintainers are just exhausted and the project is gone.

New comment by HenriTEL in "AI is killing B2B SaaS"

HenriTEL — Thu, 05 Feb 2026 11:04:13 +0000

I had a similar experience where someone that had prior experience with django while we were using sqlalchemy started to design a django-like ORM on top of sqlalchemy. Of course it took him some time to get working, was a hell to understand and extend and most importantly lacked support for basic features.

Fortunately it was limited to a small isolated service but I can imagine the damage on the long term if you continue that route on what becomes a huge monolith after a few years.

New comment by HenriTEL in "Scaling PostgreSQL to power 800M ChatGPT users"

HenriTEL — Fri, 23 Jan 2026 14:09:56 +0000

Yeah that's an ad for Azure Cosmos DB

New comment by HenriTEL in "Ask HN: Share your personal website"

HenriTEL — Thu, 15 Jan 2026 10:23:56 +0000

https://blog.henritel.com/

New comment by HenriTEL in "Python numbers every programmer should know"

HenriTEL — Sat, 03 Jan 2026 12:57:53 +0000

The goal of the article is not to know the exact numbers by heart, duh!

Care about orders of magnitude instead, in combination with the speed of hardware https://gist.github.com/jboner/2841832 you'll have a good understanding of how much overhead is due to the language and the constructs to favor for speed improvements.

Just reading the code should give you a sense of its speed and where it will spend most time. Combined with general timing metrics you can also have a sense of the overhead of 3rd party libraries (pydantic I'm looking at you).

So yeah, I find that list quite useful during the code design, likely reduce time profiling slow code in prod.

New comment by HenriTEL in "Python numbers every programmer should know"

HenriTEL — Sat, 03 Jan 2026 10:54:52 +0000

Python is slow but in my experience (that mostly relates to web services and data processing) I found that I/O was by far the biggest bottleneck. Waiting for the database, another http service or local storage, which often takes more than 1ms anyway.

New comment by HenriTEL in "Python numbers every programmer should know"

HenriTEL — Fri, 02 Jan 2026 12:12:38 +0000

22ns for a function call and dictionary key lookup, that's actually surprisingly fast.

New comment by HenriTEL in "Average DRAM price in USD over last 18 months"

HenriTEL — Thu, 04 Dec 2025 12:44:40 +0000

Increasing swap is more like adding more HDD. It won't help memory pressure issues.

New comment by HenriTEL in "New layouts with CSS Subgrid"

HenriTEL — Wed, 26 Nov 2025 10:36:53 +0000

Ah yes, a new css concept! I love this kind of article that invariably contains this kind of statement:

> This is mind-bending stuff, but it becomes intuitive with a bit of practice.

The problem is not the language, it's just that you did not spend enough time to learn it the proper way.

New comment by HenriTEL in "Python is not a great language for data science"

HenriTEL — Wed, 26 Nov 2025 10:25:44 +0000

Well you nailed it, the language you're looking for is SQL. There's a reason why duckdb got such traction over the last years. I think data scientists overlook SQL and Excel like tooling.

New comment by HenriTEL in "Over-regulation is doubling the cost"

HenriTEL — Fri, 21 Nov 2025 20:10:04 +0000

New comment by HenriTEL in "Over-regulation is doubling the cost"

HenriTEL — Fri, 21 Nov 2025 11:03:24 +0000

About the cookie banners, I'm honestly not sure it's a regulation issue. For >90% of the websites the "reject all" option have no impact on user experience, so either everybody is breaching or the banner is useless in the first place.

New comment by HenriTEL in "I finally understand Cloudflare Zero Trust tunnels"

HenriTEL — Tue, 18 Nov 2025 11:28:06 +0000

With that it becomes clear that some service is self hosted (the DNS record points to a private IP). It can be a security issue when the Whois record or the domain name allows the identification of the hosting entity. Finding its physical address can be an easy task depending on its social presence.

Then probably the hosting place is an easier target than a data center.

New comment by HenriTEL in "Personal data storage is an idea whose time has come"

HenriTEL — Sun, 05 Oct 2025 19:52:16 +0000

To be fair nowadays .com refer much more to the default, main or official domain of an entity. Say you know the name of a non corporate website, are going to try .com first of something else?

New comment by HenriTEL in "Ask HN: Who is hiring? (October 2025)"

HenriTEL — Thu, 02 Oct 2025 14:25:26 +0000

Diffusely | Backend Software Engineer - Python | Full-Time | Hybrid (Paris, FRANCE)

Diffusely is an AI media enhancement company that leverages its cutting-edge media processing platform to develop tailored products for specific verticals: Carcutter for the automotive industry, Autoretouch for the fashion one and Propershot in real estate.

As a Backend Engineer at CarCutter, you will be joining the global #1 visual AI editing and optimization solution for the automotive industry, used by customers from all around the world. Due to our steady growth, we are now expanding our passionate & motivated CarCutter team.

https://diffuselycompte-1738823875.teamtailor.com/jobs/55872...

Contacts: henri[dot]hannetel[at]diffuse[dot]ly