no zero sum games software engineer @sentry 🏊♂️ 📷 💻 blog: https://xitter.cf/t.co/sNGNa19n9L
Vienna, Austria
Joined May 2018
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have been thinking about this a lot - the quicker you can finish a small loop, the quicker all outer loops go, and the faster you can correct course
hellmayr.com/blog/2026-08-02…
simon hellmayr 🇪🇺 retweeted
There are many who are careful of their health and negligent of their life
my favorite claude behavior is when it tells you a list of options, and one of them is "do [unrelated thing], the only caveat is that [it doesn't work]" smh
in times of stress, in times of change, remember that kindness is both a virtue and a skill
hellmayr.com/blog/2026-06-21…
gosh don't you hate it when you want spotlight to tell you what 1Pa is in inHg, and then it opens 1Password?
gemini on my smart speakers has been so nice - not perfect but doing some refurbishing work today and getting to just ask gemini for a podcast on a topic of my interest and getting something really really down my alley is 👌👌👌
this type of stuff gets me HYPED - difficulty is physical but also regulatory of course, but eg getting small MRIs to people will speed up and improve so many aspects
pretty interesting, agent was doing unexpected stuff, turns out next.js setup injects this into agents.md to force up-to-date docs. not sure if genius or whether i should be mad for using my context window without my permission
I was so (positively) shocked to see how simple the ATM-ticket was when I first experienced it in the Brussels public transport system a few years ago. They even set this up so you can never spend more than the daily ticket if you swipe multiple times (like most nowadays).
I think most of what this comes down to is Austria's obsession with discounts, it's incredibly inefficient. Making the 90% path super efficient and easy, and offering still-good solutions for others would be seen as discriminatory.
If not in the 90% bucket, the interaction frequency should be much lower, e.g. through monthly or yearly tickets, or a slightly higher-complexity terminal. Their intuition probably: if we don't offer discount tickets, people are going to swamp us with support tickets.
That's why I like self-checkout registers here: they work without me waiting for someone with 4 discount stickers (some of which don't apply, so they haggle), a bonus card for collecting points (why?), and paying with 25 separate 2€ meal vouchers with individual scanning
this headset podcast format is hilarious and i want to see more of it
Jane Street just showed the inside of their AI training data center in Texas.
4,032 GPUs. 56 racks. 8,000 km of fiber. liquid cooling running through every server because air cooling can't handle the heat anymore.
but the part that got me was the origin story.
Ron Minsky, who co-heads their technology group. said their first compute cluster was literally six Dell boxes stacked on top of each other at the end of a desk row. they called it "the hive."
the trading systems sat out in the room with the traders because they wanted to be able to unplug them if something went wrong.
at one point, someone vacuuming the office unplugged a live trading system in the middle of the day.
from six Dell boxes and a vacuum cleaner incident to a liquid-cooled GPU data center processing trades in under 100 nanoseconds.
that's a 20-year arc.
getting to the point where i wonder, do we - economically - need superintelligence?
hellmayr.com/blog/2026-05-16…
have been using cursor for a while again, back to claude code i am quite frustrated when it "spins" on me for like 10 minutes spending 0 tokens, and then i ask what it's doing it says: "oh i haven't started yet, let me confirm something first" - basically happens every prompt
simon hellmayr 🇪🇺 retweeted
Happy 18th birthday to Sentry! 🎂
I never imagined what the project would become- from a dinky Django project to surpassing 200k teams on our cloud this year. 🎉
Thanks everyone who has contributed over the years, as a customer, a team member, or a collaborator. ❤️
full agree with the sentiment, but more importantly what an absolute banger move to add these typos into a text about LLM generated writing, 10/10 would get confused again
I analyzed my coding sessions and on the text interactions some words stand out. And well, they also show up on Google Trends as spiking. Oh and so much slop in my Twitter mentions and on GitHub. Thus here are some updated thoughts on all of this. lucumr.pocoo.org/2026/5/4/co…
this must be one of the most impressively designed sites i've ever seen
makingsoftware.com/
