Joined May 2018
- Tweets 288
- Following 146
- Followers 96
- Likes 935
29 Photos and videos
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 ๐๐๐
14
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
Jun 5
There's a startup in the current YC batch that built an MRI machine in 101 days.
42
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
25
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).
1
17
I'll be surprised if they end up with a good UX around this, more likely they will abandon the system after the year because it wasn't sufficiently used. Just imagine the confusion of any non-German speaker to pick between "Vollpreis" and "Ermรครigt", and who else would use it?
8
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.
May 25
Most of Europe has a good UX for tap and pay. Vienna once again shows that they donโt understand how to do good ticketing UX. Before tapping you need to select the ticket type -.-
1
1
45
This obviously doesn't have to be the case - you could allow paying on the first screen directly, and if you don't want discounts, there is a second button that says "show ticket options". Personally I think in that case you can just go to one of the higher-complexity terminals.
1
15
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.
1
18
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 2โฌ meal vouchers with individual scanning
1
1
20
this headset podcast format is hilarious and i want to see more of it
May 15
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.
49
getting to the point where i wonder, do we - economically - need superintelligence?
hellmayr.com/blog/2026-05-16โฆ
27
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
1
45
simon hellmayr ๐ช๐บ retweeted
May 12
Happy 18th birthday to Sentry! ๐
I never imagined what the project would become- from a dinky Django project to surpassing 200k teams on our cloud this year. ๐
Thanks everyone who has contributed over the years, as a customer, a team member, or a collaborator. โค๏ธ
28
16
471
30,498
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
May 4
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/coโฆ
36
this must be one of the most impressively designed sites i've ever seen
makingsoftware.com/
36
๐ฎ๐
Apr 8
People of pi. BIG NEWS. I've sold out. Let me know how you feel about this in the comments below.
mariozechner.at/posts/2026-0โฆ
75
rage coding is my new favorite expression
Mar 26
This guy rage coded a $199 app in less than an hour and cooked the OP.
2
108
simon hellmayr ๐ช๐บ retweeted
A student in Zurich sleeps in a camper van outside a hangar every night. Just to have more hours to build a humanoid robot. Heโs obsessive. He's not alone. 2,500 students across Europe are getting into robotics right now.
And now they united and just launched: ESRA, the European Student Robotics Association. ๐ช๐บ๐ฆพ
They are bringing together highly talented young people, give them space, give them resources and let them build. By now already 13 robotics clubs. 8 countries. 2,500 students.
I visited several of them over the last weeks to get to know them and let them tell their stories. We've also been helping behind the scenes where we can, because this is exactly what Europe needs.
Several multiple billion dollar companies will come out of the ESRA network. Right here in Europe.
If the Bay Area had a student robotics network like this, they would never shut up about it.
Time we do the same. ๐ค๐ฅ๐ช๐บ
It only needs a few crazy ones to fix a continent. Turns out they're already building. ๐ช๐บ
55
158
1,211
116,358
fairly banal but i felt compelled to write it down: having fun is important and will make you better at what you do
hellmayr.com/blog/2026-03-22โฆ
5
44
simon hellmayr ๐ช๐บ retweeted
Mar 19
Kinda crazy how @sentry so quickly became the de facto standard for gaming studios @CrimsonDesert_ steamdb.info/depot/3321461/
3
20
4,523