🇰🇷 swe & design | founding engineer @builderscv @trypensive
San Francisco, Bay Area
Joined January 2021
- Tweets489
- Following389
- Followers145
- Likes2.7K
hoooon retweeted
Cloudflare is taking ownership of tsrs, a port of TypeScript to Rust. It's 8x faster and uses 70% less memory than TypeScript 7.0.
We are not forking TypeScript – we are working with the TypeScript team and as a result 7.1 is already ~2.5x faster, too.
blog.cloudflare.com/typescri…
hoooon retweeted
introducing Craft
a collection of design engineering concepts
oss, free, and wip
craft.gustavofior.com
hoooon retweeted
Perplexity has joined the Rust Foundation.
We believe in supporting the people who build reliable open-source software. By joining the Rust Foundation, our goal is to improve how people and agents build with Rust.
hoooon retweeted
I resigned from Anthropic today. I spent the last three years doing pretraining research at both OpenAI and Anthropic. Neither company is acting responsibly. They are racing straight to self-improving superintelligence and gambling with our lives. More thoughts below.
@junhoh0ng and I won 1st place at the @quiverai x @cursor_ai Creative Coding Night hosted by @a16z 🏆
The brief: build a delightful visual experience with Quiver and Cursor, in 2 hours.
We thought we didn't have enough time, but arrow and cursor made creating and animating assets so effortless that we could spend most of it on design.
In the end, we built an interactive media art of three Korean traditional games (nori) as minimal pictograms in obangsaek, Korea's five traditional colors.
Thanks @quiverai @cursor_ai @a16z for the great night, and to all the amazing builders we talked to. So excited to see where AI takes design next.
hoooon retweeted
We built vgpu.sh to ship shaders on vercel.com. Now it's open source.
▪︎ Minimal agent-first WebGPU library
▪︎ Run in the browser or headless Node.js
▪︎ Render in CPU sandboxes and CI tests
▪︎ Create reusable .wgsl modules
craftsmanship never dies
I might sound old, but I’m somehow reluctant to use open source libraries made with AI.
Before, someone had to be passionate enough to dedicate time to actually write the code, think about the API, developer experience, documentation, etc.
There was also something artisanal about a person knowing all the ins and outs about a codebase, knowing exactly why a certain line was written, and slowly sculpting the product.
Now you just write a few prompts plus another one for the AI-generated docs in your repo’s readme.
It feels like fast food and it has also lost its magic, because it seems like a new library is launched every day.
But probably, soon libraries will be a thing of the past anyways.
hoooon retweeted
It’s hard to know how much you should be paid at a startup.
Startup pay is hard to benchmark.
So we built offers.fyi.
Connect your LinkedIn + GitHub to see how you compare with similar engineers.
Set the number you’d leave for, then see which startups reach out.
hoooon retweeted
One of my engineers just asked for a raise.
I said no.
So he built a website to find startups willing to pay him more.
Now it’s open to everyone.
You can benchmark yourself against similar SF engineers, name the number you’d leave for, and see who reaches out.
It’s hard to know how much you should be paid at a startup.
Startup pay is hard to benchmark.
So we built offers.fyi.
Connect your LinkedIn + GitHub to see how you compare with similar engineers.
Set the number you’d leave for, then see which startups reach out.
ok guys. 1 day ideation. 1 day design. 2 days implementation. just shipped this in 4 days.
It’s hard to know how much you should be paid at a startup.
Startup pay is hard to benchmark.
So we built offers.fyi.
Connect your LinkedIn + GitHub to see how you compare with similar engineers.
Set the number you’d leave for, then see which startups reach out.
hoooon retweeted
In 2022, as a Google intern, I sent a random calendar invite to Jeff Dean.
He accepted.
His calendar was accessible even to interns, so I figured I had nothing to lose.
The next day, I sent this photo to my team. Everyone was shocked.
It’s hard to imagine Google without Jeff. He’s been one of my biggest inspirations.
Thank you for everything, Jeff.
Tomorrow will be my last day at Google after 27 years, and watching it grow from 25 people to 190,000+ has been an amazing journey. Below is a note I shared with many people internally at Google today. An excerpt is:
It has been an absolute pleasure to work with you and to help build some of the most widely used and impactful products of all time. As a kid, I dreamed of helping build software that would be used by many people, and Google now has thirteen products used by more than a billion people (amazing!). Our work has had a tremendous impact in the world, and I have been lucky enough to collaborate and form friendships with many colleagues that I deeply admire, respect, and enjoy. It still brings me joy every time I see people out in the world using our products to find information, handle email, translate documents, watch videos, learn new things, navigate and understand the physical world, browse the web, use their phone, run large-scale computations on our infrastructure, ride in an autonomous vehicle, or perform complex tasks with the help of our AI systems. I hope you all share this sense of joy, because it is a shared accomplishment! Thank you to all of my colleagues at Google over many years!
Now I'm excited to go start @DiscoLoopAI with my longtime friends and colleagues @Sanjay_Ghemawat, @OriolVinyalsML, and @quocleix.
(Updated post: slightly redacted to not have some personal info)
hoooon retweeted
You shouldn’t have to prove the same skills to every startup you apply to.
That’s why we partnered with 20 seed and series A startups backed by @sequoia @a16z, @MayfieldFund, @ycombinator, @foundersfund, @khoslaventures and @lightspeedvp.
Take one shared technical assessment to get introduced to companies like @sekaiapp, @blockitAI , @andera_ai and @clair_health.
If you pass, you’ll skip straight to @trypensive's final round and bypass the technical screening rounds at the other 19 startups.
Take the assessment here: exceptional.builders