jeesun 지선 🇰🇷🇺🇸

software developer
👩‍💻 @stellarorg
🦋 @codeandfood.com

[jeesun 지선 🇰🇷🇺🇸 @codeandfood]

@karpathy what's going to happen to your edu startup?

[jeesun 지선 🇰🇷🇺🇸 @codeandfood]

this presentation made by claude code UNDER 10 minutes using @zarazhangrui's https://t.co/37d46dHrdu and my blog post https://t.co/jxaVX5si5f is just so pretty!

thinking of ways to import this into google slides or sth so that team collaboration can happen

[jeesun 지선 🇰🇷🇺🇸 @codeandfood]

all projects should set `minimumReleaseAge` to at least 7 days

[TANSTACK @tan_stack]

SECURITY ADVISORY — TanStack npm packages
A supply-chain compromise affecting 42 @tanstack/* packages (84 versions total) was published to npm earlier today at approximately 19:20 and 19:26 UTC. Two malicious versions per package.
Status: ACTIVE — packages are deprecated, npm security engaged, publish path being shut down.
Severity: HIGH — payload exfiltrates AWS, GCP, Kubernetes, and Vault credentials, GitHub tokens, .npmrc contents, and SSH keys.
If you installed any @tanstack/* package between 19:20 and 19:30 UTC today, treat the host as potentially compromised:
• Rotate cloud, GitHub, and SSH credentials immediately
• Audit cloud audit logs for the last several hours
• Pin to a prior known-good version and reinstall from a clean lockfile
Detection — the malicious manifest contains:
"optionalDependencies": {
"@tanstack/setup": "github:tanstack/router#79ac49ee..."
}
Any version with this entry is compromised. The payload is delivered via a git-resolved optionalDependency whose prepare script runs router_init.js (~2.3 MB, smuggled into each tarball at the package root).
Unpublish is blocked by npm policy for most affected packages due to existing third-party dependents. All 84 versions are being deprecated with a SECURITY warning, and npm security has been engaged to pull tarballs at the registry level.
Full technical breakdown, complete package and version list, and rolling status updates:
https://t.co/Zy8qG7PA9f
Credit to the security researcher for responsible disclosure.

[jeesun 지선 🇰🇷🇺🇸 @codeandfood]

"How we Claude Code" by @trq212
HTML is in. Markdown is out 👀

I wonder if his "playground" plugin inspired this!

[jeesun 지선 🇰🇷🇺🇸 @codeandfood]

used @claudeai's playground today to visualize recursion logic for the callstack PR review for https://t.co/0jC9bCxvmz

so helpful✨ I want to add more for other complex components (invoke contract) to the repo. It might be helpful for other devs

[jeesun 지선 🇰🇷🇺🇸 @codeandfood]

@andrewqu @vercel nice talk! vercel keeps shipping

[Tomer Weller @tomerweller]

$1.98B BENJI on 9 chains.

32% of value and 95% of holders on Stellar.

Lessons here.

[jeesun 지선 🇰🇷🇺🇸 @codeandfood]

i tried sf a couple of months in 2023, officially moved in 2024 & thinking of settling down here in 2026 b/c i love it so much (after time in nyc, miami, seoul, etc).

how i made friends in sf:
- gym: going to same class, meeting same people, friendship formed organically
- hackathon: hustle on projects together. it turns out one of the girls and i had the same hobby 🏄‍♀️, we started surfing every weekend, became bestie (first bestie I ever made in 30s)
- work: met genz bestie and love my colleagues at stellar
- twitter: find irl events, meet cool online peep irl
- host: i hosted and initiated hangouts a lot..

first 6 month was hard though :) so i tote understand. but if tech bubble becomes too much, make sure to make time to do hobbies that aren't tech

[Clara Gold @Clara_Gold]

6 months ago, I moved to San Francisco.
It’s the best place in the world to build, and one of the worst places to stay human. My unfiltered take:

1. SF is both overhyped and underrated

The overhyped part: there are a lot of people with incredible resumes who are deeply unimpressive in real life. They were at the right company, at the right time, in the right market, and got carried by the wave. They made money, got comfortable, and now spend their time “exploring opportunities” over coffee, wasting your time.
The underrated part: the top 1% here is insane. But almost impossible to get. Hiring in SF feels like being a guy on a dating app: everyone you want is out of your league, and everyone in your league wants someone out of theirs. The best people have unmatchable packages, endless options, and are optimizing for maximum impact: labs, frontier companies, or startups raising $100M pre-seed rounds.
If you raised $10M from Tier 1 investors, you’re not hot shit here. You’re a B-player. It’s humbling.

2. There are fewer mission-driven people than I expected

Especially on the application layer. A lot of people are in “secure the bag before it’s too late” mode. And honestly, it gives me the ick.
The real religious builders I’ve met are often in labs, hardware, biotech, deeptech, defense — places where the work is hard enough that you can’t fake obsession.

3. The status game favors builders

This is what SF does better than anywhere else. It rewards obsession. It rewards weirdness. It rewards people who make building their entire personality. Europe punishes that. SF gives it status. If you’ve felt like an outsider your whole life because you care too much, work too much, think too radically, or refuse to be chill about things that matter, this city will make you feel less insane.

4. The market liquidity is absurd

Even if you don’t build a billion-dollar company, if you manage to build a strong product with a great team, someone smart might still acquire you for $ 100M. Yeah I know, it’s not your dream outcome as a founder, but on the days you feel desperate, it helps to keep going.

5. SF does not care about the meaning crisis that’s coming

Anyone paying attention here can feel that something massive is happening with AI. But I’m shocked by how little people talk about the meaning crisis coming next. Everyone wants to talk about AI liberating humanity. Almost no one wants to talk about what happens when work — the thing that gives most people identity, structure, dignity, status, and purpose — starts disappearing. The vacuum will not be peaceful. People are underestimating the chaos that comes from humans suddenly having no idea why they matter. And I really feel like no one cares.

6. Personally, I’ve never been more unhappy

I moved to SF and entered the matrix. I’ve always been intense. I’ve always worked crazy hours. But here, I lost the last parts of myself that were not about building.
I don’t go to events. Most networking events feel like theater for people pretending to be important. The only events worth going to are small, curated dinners with people who are actually alive. I’ve made 0 real friends. I don’t do well with transactionality. I don’t do well with people constantly performing greatness. I don’t do well with rooms where everyone is optimizing and no one is being honest.

So yes, SF is lonely, transactional, delusional, addictive, inspiring, boring, extraordinary, and completely insane.
But it is still the only place to be right now if you’re a founder trying to build the next wave of humanity.

And for now, that’s enough.

[jeesun 지선 🇰🇷🇺🇸 @codeandfood]

@JohnONolan @stripe i wanna say hi!!

[jeesun 지선 🇰🇷🇺🇸 @codeandfood]

@JohnONolan @stripe @jrfarr topic on micropayments? 👀

[jeesun 지선 🇰🇷🇺🇸 @codeandfood]

@levelsio @marckohlbrugge @jackfriks @yasser_elsaid_ @JohnONolan @marclou @phuctm97 @sobedominik @tdinh_me @patrickc .@JohnONolan will you be using stripe to pay creators on @Ghost? You talked a lot about micropayments in interviews recently.

[jeesun 지선 🇰🇷🇺🇸 @codeandfood]

mcp access to treasury with approval controls is 🔥

[jeesun 지선 🇰🇷🇺🇸 @codeandfood]

catching up on stripe sessions day 1 key note!

agentic payment (via link) and stripe console (ai agent for a stripe account) will be so useful. stripe is also expanding their terminal (in person payment) to 15 more countries

the first stripe terminal i saw was in berlin 🇩🇪 in 2024 then i used it again most recently in coconut grove, miami last week!

it'd be cool if stripe console can work with both online and in person payments (should be opt in ofc)

[jeesun 지선 🇰🇷🇺🇸 @codeandfood]

i am obsessed with this new thai restaurant in sf:

"Sawaan Thai Kitchen" in mission!

lemongrass catfish, drunken noodles, cloud ring, golden massaman chicken curry - omg so good!

don't order spicy unless you love extra spicy. their 'medium' was already spicy to me

[jeesun 지선 🇰🇷🇺🇸 @codeandfood]

@zarazhangrui saw claude design and immediately thought of you

[jeesun 지선 🇰🇷🇺🇸 @codeandfood]

@wesbos After effects? Is it time for adobe to go up?

[jeesun 지선 🇰🇷🇺🇸 @codeandfood]

@jeffreyhuber i watched my non technical instagram influencer friend using claude cowork. she kept getting errors irrelevant to her request (find a specific word in her msgs). She got very frustrated with ambiguous error message

she liked claude's chrome extension for her work though

[jeesun 지선 🇰🇷🇺🇸 @codeandfood]

@andrewqu @openclaw Nice! I want to try that