agnieszka_krawczyk

Marketing brain. ’90s soul. AI curiosity.
Tennis, cars, gym, playlists & boarding passes.

[Callstack Engineers @callstackio]

Curious about the decisions behind React Navigation 8?

Satya will get into its Static API, type-safe navigation, and the choices involved in making it work across platforms.

Catch his talk at @nextappdevcon in Berlin. 👋

[Michał Pierzchała @thymikee]

Surreal that Codex can render performance profile info live in the chat like this 🤯

[Callstack Engineers @callstackio]

Two talks from Szymon at reactCon Berlin: how he built Rozenite, and what it takes to make React Native software factories reliable enough to run overnight.

Catch him on stage, then come chat with us at the Callstack booth. ✌

[Kacper Kapuściak @kacperkapusciak]

- Bartek come, let’s take a photo
- I can’t I have one more post to schedule

these guys are just impossible

[Mike @grabbou]

Big updates coming this week. Excited.

[Apex (by Callstack) @apex__ai]

Get a chance to win $50 in Apex tokens by replying to Michal's post 💸

[Michał Pierzchała @thymikee]

In the latest T3 Code nightly with orchestrator v2 I can finally spawn new threads from a single prompt!

Codex has this feature and I missed it so much. Thank you @jullerino @theo 🙏

[Callstack Engineers @callstackio]

On the first day of @AgentConf we opened free access to our model Apex to all attendees.

Apex achieves SOTA in React Native and Terra Max / Sol Medium in Artificial Intelligence Index.

Enjoy unlimited tokens on us til the end of the weekend and show us what’ve shipped!

[Mike @grabbou]

So @AgentConf is over! Lots to think about!

Next stop: Asia, September 20-24. Let's meet to talk about the future of software development and how to make it work for your team.

DM me if you're around!

[Agent Conf | Sept 17-18, 2026 | Warsaw @AgentConf]

Lastly, shout-out to @mat_kornacki and the @callstackio team for bringing #AgentConf to life. Now, let’s party!

[Agent Conf | Sept 17-18, 2026 | Warsaw @AgentConf]

Callstack’s studio was on fire yesterday. Watch the Day 1 #AgentConf recap by @p_syche_, @lukasz_app, and @lukebfarrell ▶️ https://t.co/wk7X0nXmjS

[Thiago Brezinski @thiagobrez]

React Native Evals and Apex mentioned

[Valentin C. Hetriuc @h12_valentin]

State machines for AI agents. Now we’re talking. 🔥

@DavidKPiano bringing determinism, guardrails and trust back into the conversation.

Less slop. More engineering.

@AgentConf #AgentConf

[Michał Pierzchała @thymikee]

Tech conferences now serving ceremonial matcha 🤯 @AgentConf

[Kewin @Q1w1N]

Day 2 of @AgentConf and we’re already diving into some seriously technical topics.

One coffee might not be enough for this one 🔥☕

[Thiago Brezinski @thiagobrez]

Apex providing you UNLIMITED tokens during @AgentConf

Go crazy

[Michał Pierzchała @thymikee]

OpenAI developer: Infra, DX, testing and qualification are better accelerants for developing software with agents than improving harnesses.

Also get out of the way of the models. They’re capable and require less steering.

Enjoyed this talk by Carl Ross at @AgentConf very much!

[Kewin @Q1w1N]

I’m surprised, happy, and annoyed…

🥹 Happy to learn even more about my favourite AI framework — EVE
😮 Surprised that so few people in the audience know about it!
🙂‍↕️ Annoyed by my seat 😂

@AgentConf @dom_sipowicz

[Agent Conf | Sept 17-18, 2026 | Warsaw @AgentConf]

Day 1 in a nutshell: 500 people, 16 speakers, and hectoliters of specialty coffee.

Thank you to @grabbou, @thymikee, @kentcdodds, @nickwm, @jakubkuzimski, @davidmokos_, @dom_sipowicz, @piotrkarwatka, @anisha_malde, Kourtney Meiss, Zuzanna Skoczylas, Anjaneya Sastry Kappagantu, @artus9033, @LeSiOO, @davidbudac, and @TejasKumar_ for guiding us through the day. Awesome work.

[Callstack Engineers @callstackio]

Callstack’s @LeSiOO and @artus9033 shared a behind-the-scenes look at how #Apex was created. Recording available soon.