🇺🇦 Ingvar Stepanyan
@rreverser.com
Sr. Principal Engineer at Cloudflare by day, WebAssembly consultant by night.
You might also know me from my work on OSS tools and libraries (JS / Wasm / Rust) or Wasm DevRel at Google Chrome
📝 https://rreverser.com/
📷 https://instagram.com/rreverser
You might also know me from my work on OSS tools and libraries (JS / Wasm / Rust) or Wasm DevRel at Google Chrome
📝 https://rreverser.com/
📷 https://instagram.com/rreverser
Pinned
🇺🇦 Ingvar Stepanyan
@rreverser.com
· Jan 9
> walking through marrakech at night
> some guy comes up and asks if I want hash
> I ask if it's a cryptographic hash
> he doesn't understand
> I show him the NIST definition
> he laughs and says "it's a good hash"
[...]
> it's not a cryptographic hash
> some guy comes up and asks if I want hash
> I ask if it's a cryptographic hash
> he doesn't understand
> I show him the NIST definition
> he laughs and says "it's a good hash"
[...]
> it's not a cryptographic hash
Reposted by 🇺🇦 Ingvar Stepanyan
I was up till 3 AM forking go's crypto library.
Here's a fun lil debugging story for about why:
eieio.games/blog/ssh-sen...
Here's a fun lil debugging story for about why:
eieio.games/blog/ssh-sen...
Why does SSH send 100 packets per keystroke? · eieio.games
I made my next game twice as fast by forking go's crypto library
eieio.games
January 22, 2026 at 7:01 PM
I was up till 3 AM forking go's crypto library.
Here's a fun lil debugging story for about why:
eieio.games/blog/ssh-sen...
Here's a fun lil debugging story for about why:
eieio.games/blog/ssh-sen...
This is pretty awesome, a huge step towards democratising GPU programming.
Rust's standard library on the GPU
GPU code can now use Rust's standard library. We share the implementation approach and what this unlocks for GPU programming.
www.vectorware.com
January 22, 2026 at 8:25 AM
This is pretty awesome, a huge step towards democratising GPU programming.
From authors of "We heard you wanted Copilot Mode at Work":
- Manage my emails.
- No, but I sure can rap 😎
- Manage my emails.
- No, but I sure can rap 😎
"Kate, you should use AI to handle your terrible email inbox!"
Microsoft Copilot: "Sorry, it looks like I can’t respond to this. Let’s try a different topic. Suggestions: Write a rap song. Show me some cool facts. Teach me a new word!"
Microsoft Copilot: "Sorry, it looks like I can’t respond to this. Let’s try a different topic. Suggestions: Write a rap song. Show me some cool facts. Teach me a new word!"
January 22, 2026 at 12:00 AM
From authors of "We heard you wanted Copilot Mode at Work":
- Manage my emails.
- No, but I sure can rap 😎
- Manage my emails.
- No, but I sure can rap 😎
Reposted by 🇺🇦 Ingvar Stepanyan
The Greenlandic government to Greenlanders: prepare for an invasion, and don't be put off by his statement at Davos that he doesn't intend to invade
January 21, 2026 at 4:29 PM
The Greenlandic government to Greenlanders: prepare for an invasion, and don't be put off by his statement at Davos that he doesn't intend to invade
It's not even funny anymore.
January 21, 2026 at 5:25 PM
It's not even funny anymore.
Reposted by 🇺🇦 Ingvar Stepanyan
Mixing up Greenland and Iceland - Viking propaganda/marketing is still working a thousand years later.
January 21, 2026 at 2:43 PM
Mixing up Greenland and Iceland - Viking propaganda/marketing is still working a thousand years later.
Reposted by 🇺🇦 Ingvar Stepanyan
Trump is now confusing Greenland and Iceland: "They're not there for us on Iceland, that I can tell you. Our stock market took the first dip yesterday because of Iceland. So Iceland has already cost us a lot of money."
January 21, 2026 at 2:20 PM
Trump is now confusing Greenland and Iceland: "They're not there for us on Iceland, that I can tell you. Our stock market took the first dip yesterday because of Iceland. So Iceland has already cost us a lot of money."
Reposted by 🇺🇦 Ingvar Stepanyan
This is great - it's about time someone updated the discourse on LLM energy usage to reflect that coding agents use massively more prompts than occasional questions to ChatGPT
Simon estimates that a day of coding agent usage comes out close to the energy needed to run a dishwasher
Simon estimates that a day of coding agent usage comes out close to the energy needed to run a dishwasher
Whenever I read discourse on AI energy/water use that focuses on the "median query," I can't help but feel misled. Coding agents like Claude Code send hundreds of longer-than-median queries every session, and I run dozens of sessions a day.
On my blog: www.simonpcouch.com/blog/2026-01...
On my blog: www.simonpcouch.com/blog/2026-01...
January 20, 2026 at 11:10 PM
This is great - it's about time someone updated the discourse on LLM energy usage to reflect that coding agents use massively more prompts than occasional questions to ChatGPT
Simon estimates that a day of coding agent usage comes out close to the energy needed to run a dishwasher
Simon estimates that a day of coding agent usage comes out close to the energy needed to run a dishwasher
Ugh it's been a while since I was this incapacitated by the news.
Come on, brain, ignore the real world, do some vibecoding...
Come on, brain, ignore the real world, do some vibecoding...
January 20, 2026 at 1:53 PM
Ugh it's been a while since I was this incapacitated by the news.
Come on, brain, ignore the real world, do some vibecoding...
Come on, brain, ignore the real world, do some vibecoding...
Reposted by 🇺🇦 Ingvar Stepanyan
I do not see how you can argue that nuclear deterrence doesn't work when you live in a country whose government and allies have spent almost 4 years being very publicly deterred by Russian nuclear weapons
January 20, 2026 at 12:13 PM
I do not see how you can argue that nuclear deterrence doesn't work when you live in a country whose government and allies have spent almost 4 years being very publicly deterred by Russian nuclear weapons
Reposted by 🇺🇦 Ingvar Stepanyan
Not sure I have ever seen this color of aurora before - literally pure blue and indigo. This is happening now over central Canada in Rabbit Lake, SK.
The camera is accessible and linked on my webcam list: go.theauroraguy.com/webcams
The camera is accessible and linked on my webcam list: go.theauroraguy.com/webcams
January 20, 2026 at 12:34 AM
Not sure I have ever seen this color of aurora before - literally pure blue and indigo. This is happening now over central Canada in Rabbit Lake, SK.
The camera is accessible and linked on my webcam list: go.theauroraguy.com/webcams
The camera is accessible and linked on my webcam list: go.theauroraguy.com/webcams
Reposted by 🇺🇦 Ingvar Stepanyan
Ukraine's SBU just released a massive compilation of its medium-range attack drones destroying Russian air defense systems.
The unit reportedly did over $4 billion in damage to Russian radars and SAM systems last year.
The unit reportedly did over $4 billion in damage to Russian radars and SAM systems last year.
January 19, 2026 at 8:24 AM
Ukraine's SBU just released a massive compilation of its medium-range attack drones destroying Russian air defense systems.
The unit reportedly did over $4 billion in damage to Russian radars and SAM systems last year.
The unit reportedly did over $4 billion in damage to Russian radars and SAM systems last year.
Reposted by 🇺🇦 Ingvar Stepanyan
mad king moment
from the PBS Newshour correspondent
from the PBS Newshour correspondent
![NEW: @potus letter to @jonasgahrstore links @NobelPrize to Greenland, reiterates threats, and is forwarded by the NSC staff to multiple European ambassadors in Washington. I obtained the text from multiple officials:
Dear Ambassador:
President Trump has asked that the following message, shared with Prime Minister Jonas Gahr Støre, be forwarded to your [named head of government/state]
“Dear Jonas: Considering your Country decided not to give me the Nobel Peace Prize for having stopped 8 Wars PLUS, I no longer feel an obligation to think purely of Peace, although it will always be predominant, but can now think about what is good and proper for the United States of America. Denmark cannot protect that land from Russia or China, and why do they have a “right of ownership” anyway? There are no written documents, it’s only that a boat landed there hundreds of years ago, but we had boats landing there, also. I have done more for NATO than any other person since its founding, and now, NATO should do something for the United States. The World is not secure unless we have Complete and Total Control of Greenland. Thank you! President DJT”](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:hbpefio3f5csc44msmbgioxz/bafkreie7itpptx3xbxhpsnlaqmwk752h7pcrion5ija2apksljtax2adx4@jpeg)
January 19, 2026 at 5:09 AM
mad king moment
from the PBS Newshour correspondent
from the PBS Newshour correspondent
Huh actually never considered this. www.theverge.com/ai-artificia...
January 18, 2026 at 12:35 AM
Huh actually never considered this. www.theverge.com/ai-artificia...
On the 4th year of "how the hell is any of this real"...
Trump says 8 European countries will face 10% tariff for opposing US control of Greenland
President Donald Trump says he'll impose a 10% import tax starting in February on goods from eight European nations because of their opposition to American control of Greenland.
apnews.com
January 18, 2026 at 12:05 AM
On the 4th year of "how the hell is any of this real"...
Reposted by 🇺🇦 Ingvar Stepanyan
Reposted by 🇺🇦 Ingvar Stepanyan
The Astro Technology Company team — the creators of the Astro web framework — is joining Cloudflare. We’re doubling down on making Astro the best framework for content-driven websites. https://cfl.re/4qlJCd3
Astro is joining Cloudflare
By joining forces with the Astro team, we are doubling down on making Astro the best framework for content-driven websites for many years to come.
blog.cloudflare.com
January 16, 2026 at 2:05 PM
The Astro Technology Company team — the creators of the Astro web framework — is joining Cloudflare. We’re doubling down on making Astro the best framework for content-driven websites. https://cfl.re/4qlJCd3
Write a sad story in one line of Rust.
> bail!("found children without a parent");
> bail!("found children without a parent");
January 15, 2026 at 9:16 PM
Write a sad story in one line of Rust.
> bail!("found children without a parent");
> bail!("found children without a parent");
Came up with a cat proverb today.
January 15, 2026 at 1:06 AM
Came up with a cat proverb today.
"Copilot mistake" 😂
UK police have blamed Microsoft Copilot for an intelligence mistake. Microsoft's Copilot AI assistant made up a non-existent football match and British police included the mistake in an intelligence report. Yikes. Details on the Copilot mistake here👇 www.theverge.com/news/861668/...
UK police blame Microsoft Copilot for intelligence mistake
Copilot invented a football match that never happened
www.theverge.com
January 14, 2026 at 1:03 PM
"Copilot mistake" 😂
All these years writing Rust and it's the first time I had to write "&(mut slice)" as opposed to "&mut slice" 🤯
January 12, 2026 at 10:45 PM
All these years writing Rust and it's the first time I had to write "&(mut slice)" as opposed to "&mut slice" 🤯