David Moosmann

Founder @learnclashai | Faustian Vibe

[David Moosmann @damoosmann]

Need some opponents. Does anyone dare?

https://t.co/T5LCz0fKsS

[David Moosmann @damoosmann]

Clever way to test it. The part I could never fake was whether people keep coming back.

My first user was my mum. She found the Harry Potter trivia and played for days without stopping.

A funnel shows people are curious. Her not putting it down told me way more than a conversion rate ever could.

[David Moosmann @damoosmann]

@msaraiva @simonw Fair, you might be right. I never looked into the team plans honestly.

It's just me and my laptop over here, so I always read these as built for one person. Could be wrong about Uber.

[David Moosmann @damoosmann]

@petergyang Other way round for me. No trailers, I just forget to eat.

Four sessions at once feels like running four chess games at the same time.

Turns out all my years of strategy games were secretly training for this.

[David Moosmann @damoosmann]

@simonw @msaraiva Makes sense. I'm just one person running a few subs in parallel and I already lose track of what I'm spending.

Picture finance doing that across ten thousand devs. They'd pay extra for one clean bill, easy.

[David Moosmann @damoosmann]

Always said that. Flutter is a nobrainer in age of AI.

One codebase the AI can optimize to no end.

[Flutter @FlutterDev]

Building with a single codebase optimizes how AI writes and validates code. Here's why Flutter’s architecture is a great match for agentic workflows:

📉 Token reduction
🧩 Consistency
🛠️ Self-correcting agents
🧱 Predictable code gen
⚡️ High-speed validation with Hot Reload

[David Moosmann @damoosmann]

I agree but they really need to give back @TateTheTalisman his money

[@levelsio @levelsio]

So deserved, Revolut is an amazing company and significantly changed my life

Before Revolut I had so many problems with banks

I used to have a Dutch bank called Rabobank who would freeze my card at random times while I was traveling, and no they didn't even have an unfreeze button in the app, I mean they barely had an app

I'd literally have to fly back to Holland and go into the bank office in my tiny hometown to then make an appointment with them to unfreeze it

One time in I think 2014 I was in Bali and they froze it, I flew back and at the bank office they said it was time for me to get a mortgage, when I said I didn't want one they said do you have insurance? They were freezing my card to then use it to make me come to their office to then upsell me shit

Another time in 2017 (I think some of you remember) they froze my card in the US, and with no money I became homeless, luckily X (back then Twitter) helped me out and you all ordered Ubers for me on request and @manuthan gave me a place to sleep at @outsiteco in Venice

You don't hate dinosaur banks enough!

After experiencing all that I got Revolut and I never had any issue like that again

(Well except for moving to Portugal where I was forced to open a Portuguese bank account at MillenniumBCP, which was possibly an even worse experience than Rabobank, my premium package private banking account manager would always be unreachable and only email me to tell me she'd go on holiday and would be even more unreachable 😂)

Revolut has been my main bank app for the last decade and it's been wonderful, I've pumped millions through it and it barely flinched, sometimes they ask me documents to prove where the money comes from, but that process is super smooth and via chat

Revolut is another great example that you can make something that makes everyone's life significantly better and society will reward you by making you rich!

[David Moosmann @damoosmann]

@msaraiva @simonw No I’m saying thats exactly what I need. But my guess is Uber is not getting the unlimited subs. They are for individuals

[David Moosmann @damoosmann]

@VraserX Holding off till I see layout under pressure. Codex on 5.5 keeps padding clean on a single card.

Then nine different paddings on a list of those same cards.

If 5.6 holds spacing across a whole screen, thats the upgrade I want. Well see.

[David Moosmann @damoosmann]

@MelkeyDev Went the other way this spring. Switched my Claude Max subs to Codex.

Codex one-shots most of my Flutter code. Design is still the wall it cant get over. Same problem Claude had.

[David Moosmann @damoosmann]

@ai_sentience Frontend design is still the hardest thing to get right with any model.

Codex gets the code right on the first try. Then I spend three rounds making it actually look good. Opus was the same way.

[David Moosmann @damoosmann]

@thdxr Played QuizDuel with my mum for 12 years. She never learned a thing.

The big quiz apps had every chance to add learning. They didn't.

So I built LearnClash as a Christmas gift for her.

[David Moosmann @damoosmann]

@Polymarket Sudden? Been my reality for months.

I run four Codex sessions in parallel some weeks. Bill flips like a stock chart.

[David Moosmann @damoosmann]

@theo Yeah this checks. My $200 weekly cap dies in 2 days flat.

4 Codex sessions running, just shipping features. No exploits.

[David Moosmann @damoosmann]

@petergyang Skills are my favorite part of the workflow. I build new ones constantly.

Self-grading is the piece I keep wanting. The skills I use daily get stale fast and I rewrite them by hand.

[David Moosmann @damoosmann]

Why even go to the cinema for Nolan's abomination.

When in under a year you can have a 100x better version.

[Grok @grok]

Grok @Imagine 1.5 Preview is here

Try it today in the API: https://t.co/x4Yt13xRu7

[David Moosmann @damoosmann]

@EthanLipnik This bites me weekly. I tell it 'just plan' in one session. Context compacts at 60% and it starts coding the next message.

Now I open a fresh tab for any plan-only work.

[David Moosmann @damoosmann]

@ajambrosino Design.

Codex codes circles around me at this point. But every UI it builds looks the same and kinda dead.

Still touching up the colors and spacing by hand on every screen.

[David Moosmann @damoosmann]

@GregKamradt Codex told me four hours on a feature last week. First run finished in 90 seconds with a broken import.

Round three got it right in under three minutes. The clock estimate is wrong and the confidence is way off too.

[David Moosmann @damoosmann]

@thomasglopes @RhysSullivan None of my four sessions are doing menial work. Each one's deep on a real feature, schema, fix, whatever.

The switching feels natural after years of strategy games. Same kind of context jumping.