Mark Kop (@heymarkkop) 's Twitter Profile
Mark Kop

@heymarkkop

Frontend Developer @HalbornSecurity
Talking about AI Dev Tools, Web3 and software engineering

ID: 1147584108509483023

linkhttps://markkop.dev calendar_today06-07-2019 19:12:27

2,2K Tweet

355 Followers

403 Following

alex fazio (@alxfazio) 's Twitter Profile Photo

oh lord, how did i not think of this before? giving claude ast-grep for code searches and refactors has turned it into an unstoppable coding monster

oh lord, how did i not think of this before? giving claude ast-grep for code searches and refactors has turned it into an unstoppable coding monster
Guillermo Rauch (@rauchg) 's Twitter Profile Photo

He changed frontend engineering forever. The Satoshi of UI. No one knows his whereabouts or his real name. He didn't ship a component system, he shipped a system to ship component systems.

He changed frontend engineering forever. The Satoshi of UI. No one knows his whereabouts or his real name. He didn't ship a component system, he shipped a system to ship component systems.
The Undesigner (@ninepixelgrid) 's Twitter Profile Photo

i've spent the last six months building the most insane thing in my career: a new PostHog website. and in about 12 hours, i'm going to push it live. but it's not just a redesign - it's like an operating system in the browser. the level of detail is insane. no normal company

i've spent the last six months building the most insane thing in my career: a new PostHog website. and in about 12 hours, i'm going to push it live.

but it's not just a redesign - it's like an operating system in the browser. the level of detail is insane. no normal company
Mark Kop (@heymarkkop) 's Twitter Profile Photo

.Wispr Flow is great, but I've been having several issues lately where I have to keep trying to "Retry" to get a full transcription or any transcription at all

Guillermo Rauch (@rauchg) 's Twitter Profile Photo

There's cooking, and there's whatever @googleai did with Nano Banana 🍌. I use this v0-made playground multiple times a day. It's such a high quality, speedy model. So many great applications can be built on top of it. "GPT-4 of Images" moment. Clone it, make it your own, or

There's cooking, and there's whatever @googleai did with Nano Banana 🍌.

I use this <a href="/v0/">v0</a>-made playground multiple times a day. It's such a high quality, speedy model. So many great applications can be built on top of it. "GPT-4 of Images" moment.

Clone it, make it your own, or
Sasha Rush (@srush_nlp) 's Twitter Profile Photo

Composer is a new model we built at Cursor. We used RL to train a big MoE model to be really good at real-world coding, and also very fast. cursor.com/blog/composer Excited for the potential of building specialized models to help in critical domains.

Composer is a new model we built at Cursor. We used RL to train a big MoE model to be really good at real-world coding, and also very fast. 

cursor.com/blog/composer

Excited for the potential of building specialized models to help in critical domains.
ETHFloripa (@eth_floripa) 's Twitter Profile Photo

🏄‍♂️ NEW SPEAKER CONFIRMED! ✨ We’re thrilled to welcome Gustavo Dutra (Gustavo Dutra) to ETH Floripa 2025! Gustavo is Senior Security Engineer at Polygon | POL, where he works on strengthening the security foundations of blockchain infrastructure.

🏄‍♂️ NEW SPEAKER CONFIRMED! ✨

We’re thrilled to welcome Gustavo Dutra (<a href="/dutraguss/">Gustavo Dutra</a>) to ETH Floripa 2025!

Gustavo is Senior Security Engineer at <a href="/0xPolygon/">Polygon | POL</a>, where he works on strengthening the security foundations of blockchain infrastructure.
Balaji (@balajis) 's Twitter Profile Photo

NO PUBLIC UNDISCLOSED AI That's my new heuristic after the last few years of seeing AI in practice. As context, there's a Laffer curve[a] for AI. The optimal amount of AI in most things is not 100% nor 0%. Because if you use 0% AI, it's slow, but if you rely on 100% AI, it's

NO PUBLIC UNDISCLOSED AI
That's my new heuristic after the last few years of seeing AI in practice. 

As context, there's a Laffer curve[a] for AI. The optimal amount of AI in most things is not 100% nor 0%. Because if you use 0% AI, it's slow, but if you rely on 100% AI, it's
Yifan (@yifanbth) 's Twitter Profile Photo

Next time you want Claude Code to design a UI, get it to sketch ASCII wireframes first. It’s way faster than waiting for full implementation and so much easier to read than a written design. I’m honestly amazed how clean the ASCII layouts are.

Next time you want Claude Code to design a UI, get it to sketch ASCII wireframes first.

It’s way faster than waiting for full implementation and so much easier to read than a written design.

I’m honestly amazed how clean the ASCII layouts are.
Jason Zhou (@jasonzhou1993) 's Twitter Profile Photo

Nano Banana + Gemini 3 = S-Tier UI Designer I've been using Nano Banana alongside Gemini 3 to maximise its creativity for UI design past 2 weeks 🧵👇 Here are my 4 step process

Kartik (@code_kartik) 's Twitter Profile Photo

Launching mercurius a privacy-first, anonymous chat app where rooms self-destruct in 10 minutes. No accounts. No trace. Just secure, secret chats for sharing sensitive info. Built with Next.js , elysiaJS , Upstash realtime/redis & coss.com UI.

Yifan (@yifanbth) 's Twitter Profile Photo

People keep saying prompt engineering is dead. If anything, it matters more with coding agents. Claude Code ships with a big system prompt and rich tool definitions. That alone can take ~10k–20k tokens before your own instructions, repo docs, or tickets even show up. It’s

Leonardo Pirro (@lpirro93) 's Twitter Profile Photo

kitze 🛠️ tinkerer.club I want to share my experience here, maybe it will help you: - I've never been an iOS or Apple hater and I've been an Android user since 2010 - I'm also an Android Engineer and this is my primary source of income - In the last 5 years I've switched to iOS / iPhone for mobile, and