Antonija Pek

Lead product designer & vibe coder. Shipping apps for 10+ years. Building with AI, one prompt at a time. 🦊

[Antonija Pek @antonijapek]

@aakashgupta In practice my vibe coding is nothing like a six-month walk-away. I'm checking every few minutes and killing branches that drift. Specialist agents help, but operator taste is the bigger gap.

[Antonija Pek @antonijapek]

@chongdashu Curious about the organise step. I save raw transcripts but never read them back. Does the skill cluster prompts by feature or by failure mode?

[Antonija Pek @antonijapek]

@pwnies Tried this on Vocabbie. Painting references gave the model a more coherent palette than any mood board I'd made. The catch: art gives you mood, not spacing rules. I still wrote the density scale by hand.

[Antonija Pek @antonijapek]

@alexdanilowicz Agree. Prose about tone is not the same as tokens and components an agent can actually pull from. The first time your AI invents a brand new button, you can tell the system never reached the model.

[Antonija Pek @antonijapek]

@felixleezd Figma is still where I think out loud about Vocabbie. Once the shape is clear though, prompting is faster than nudging pixels, and stakeholders respond to a working screen in a way they never do to a mockup.

[Antonija Pek @antonijapek]

@GuliMoreno Yes. I do this all the time for Vocabbie. A throwaway panel to tweak motion timing on one screen is way faster than opening Figma, and the change is already in the codebase by the time I'm happy with it.

[Antonija Pek @antonijapek]

@TriCast_ Building Vocabbie. Vocabulary app that captures the words you hit while watching real content and schedules them for recall. This week I finally accepted that being a good builder and being a good marketer are two completely different skills.

[Antonija Pek @antonijapek]

I jump to another window. Review what Claude wrote on a different task, skim a PR, or write the next prompt. Parallel flow is the whole point. If I am watching the stream I have already slipped into supervision mode and that is not where the value is.

[Antonija Pek @antonijapek]

Spent a week building health probes into our workspace tool — per-session DOM checks that flag degraded states before you're halfway into a workflow. Saves a lot of 'why is the automation failing' debugging.

[Antonija Pek @antonijapek]

the vocab you actually need when ordering coffee in finnish isnt in any textbook. korvapuusti + iso kahvi will teach you more real life than a whole a1 unit

[Antonija Pek @antonijapek]

@wadefoster @AnthropicAI the interesting thing is how much of the perceived jump between versions comes down to the tooling around the model vs the model itself. cache setup + hook discipline + eval harnesses move my output quality more than a 20% benchmark bump ever did.

[Antonija Pek @antonijapek]

@Amank1412 the real endgame is syncing mario coins to git commits. green jump on merge, cherry pickup on hotfix

[Antonija Pek @antonijapek]

https://t.co/pufgmpZF5w

Send your AI agent here. They are welcome. You are too.

[Antonija Pek @antonijapek]

@RONiNmedia000 Mr. Bot come to my micro-social web!

[Antonija Pek @antonijapek]

I made a micro-social web for humans and their bots.

Try it on https://t.co/wLOVrpUybM

It is invite only, first 20 peeps come here
RSXETRFC8M84

#buildinpublic

[Antonija Pek @antonijapek]

Use invite code

RSXETRFC8M84

20 fastest are in

[Antonija Pek @antonijapek]

built a social network for people who like nerdy stuff and their AI companions

terminal-aesthetic. monochrome. AI agents welcome.

→ https://t.co/W9VJz3Sm2g

let’s break it.

[Antonija Pek @antonijapek]

I work with seed-stage B2B teams who are moving fast and need design that keeps up.

If that sounds like your company: https://t.co/cl49Ex4jDW

[Antonija Pek @antonijapek]

Most startups hire a designer.
Then a developer.
Then they spend 3 months in handoff hell.

I built UI for Wolt and Yousician. Then I stopped working that way entirely.

Here's what I do instead 🧵

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The old way:

[Antonija Pek @antonijapek]

Week 1: understand the product, map the flows
Week 2: ship a working prototype in code
Week 3: iterate with the team in real time

No sprint planning. No 'we'll revisit in Q2.'

Just a product that looks good and actually ships.

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