@_jbroma

dev @rork, previously @callstackio

 Cracow
Joined May 2022
  • Tweets1K
  • Following468
  • Followers1K
52Media
Re.Pack 5 is here! ⚡️ 5x faster with Rspack 🤝 Module Federation 2 support 🪶 Up to 90% smaller configs 🛠️ Reanimated, Expo Modules, & NativeWind plugins 📖 Check out the full announcement blog post below 👇
16
64
11
345
51,199
Jakub Romańczyk retweeted
Oskar
@o_kwasniewskiOct 13
e2e has just hit 10k GitHub stars! 🚀 github.com/tester-army/e2e
13
15
1
112
3,528
Jakub Romańczyk retweeted
Rork
@rorkOct 7
Introducing Rork Web Build dashboards, client portals, admin tools, and public sites right next to your mobile app. Buy a domain in Rork or connect your own, and host it all in one place.
9
9
6
89
27,512
Jakub Romańczyk retweeted
Rork
@rorkOct 6
An Uber-style app with iOS 27 Siri support, fully built in Rork Ask "where's my driver?" and Siri tells you the driver, the car and the plate Get your app ready for iOS 27 in Rork
4
7
1
62
6,813
Jakub Romańczyk retweeted
Oskar
@o_kwasniewskiOct 1
Introducing e2e The agentic testing framework for any app ~/ npx e2e init → Fully Open Source → Mix deterministic and agentic APIs → Supports web, mobile, and more → Bring your own agent and infrastructure → Run locally or in CI tester.army/e2e
211
461
167
4,909
1,233,262
Jakub Romańczyk retweeted
Szymon Rybczak
@SzymonRybczakSep 30
Very excited to announce that @kacperkapusciak is joining @TesterArmy as DevRel Engineer 🎉 Kacper spent years at Software Mansion working on the React Native libraries half the ecosystem runs on, including React Native Screens, React Navigation, Reanimated and Radon IDE. Now he'll help us build the TesterArmy platform and our new open source library e2e, and create the best content out there around both, so stay tuned 👀 Welcome to the team, Kacper!
22
6
4
182
16,059
Jakub Romańczyk retweeted
Rork
@rorkSep 29
GPT-6.1 Sol is now in Rork OpenAI's new Sol for deep codebase work and long-running agents. Near-Astra coding at a fifth of Astra's price.
OpenAI
@OpenAISep 29
GPT-6.1 Sol: near-Astra intelligence for a fifth of the price. It’s the most cost-efficient model for its performance available today.
2
2
1
28
5,122
Jakub Romańczyk retweeted
Rork
@rorkSep 28
Claude Sonnet 5.5 is live in Rork Anthropic's fastest Sonnet, with a sharp eye for UI design. Generates output over 30% faster than Sonnet 5
Claude
@claudeaiSep 28
Introducing Claude Sonnet 5.5, the second model in the Claude 5.5 family. It’s a clear upgrade over Sonnet 5, runs more than 30% faster, and costs up to 30% less for most work.
2
3
3
31
10,162
Jakub Romańczyk retweeted
Rork
@rorkSep 28
iPhone Duo is now in Rork Build apps for both screens and test them on a live Duo in 3D simulator.
34
14
27
267
86,462
Jakub Romańczyk retweeted
Oskar
@o_kwasniewskiSep 28
we’re open-sourcing e2e this thursday. e2e is an agentic testing framework for both web and mobile apps. You can mix agentic and deterministic APIs in the same test. Bring your own agents and your own infra. ➡️ tester.army/e2e
34
61
7
794
54,023
Jakub Romańczyk retweeted
Thariq
@trq212Sep 27
I am most afraid of us eating the productivity gains of agents by just becoming lazier.
593
150
137
5,772
452,679
It feels like Opus 5.5 is a model where the slop isn't the default setting
1
1
2
165
Jakub Romańczyk retweeted
Esteban@iestevgSep 25
I've been working with Re.Pack lately and needed to explain how it works to my team. So I made this with Opus 5.5. Host, mini apps, and why a mini app can never ship native code, in under 4 minutes. #ReactNative #RePack @repack_rn @callstackio
3
4
13
781
Jakub Romańczyk retweeted
Rork
@rorkSep 23
iPhone Duo simulator is coming soon to Rork. Things are about to get a whole lot more fun
7
8
11
113
25,097
Jakub Romańczyk retweeted
Ronith
@ronithhhSep 21
Prototyped a Swift interpreter that runs native, fully interactive iOS apps directly from a .swift file
294
476
127
9,338
1,761,832
Jakub Romańczyk retweeted
Levan Kvirkvelia
@levanSep 22
When models get smarter so fast, how do you even design a product around them? Shared how we do it at Rork in my @AgentConf talk!
2
2
1
19
1,700
Jakub Romańczyk retweeted
Rork
@rorkSep 22
GPT-6 Sol is now live in Rork OpenAI's new GPT-6 model for complex coding and agentic work. Half the price of GPT-5.6 Sol with about half the factual mistakes.
OpenAI
@OpenAISep 22
Please welcome GPT-6 Sol and GPT-6 Luna to the GPT-6 universe. GPT-6 Sol and Luna build on the advances behind GPT-6 Astra, bringing much of its strengths into faster and more affordable models to support work at scale. We’ve also made caching and inference more efficient, and we’re passing the savings directly to you: 50% lower API prices for Sol and Luna compared with GPT‑5.6 promotional pricing.
3
6
32
4,743
Jakub Romańczyk retweeted
Levan Kvirkvelia
@levanSep 22
Been messing around with Kev (the open source Jev) a bit and got vision 👀 support working! Only cost me $35 on @vast_ai and a few prompts to Astra. I might release it on HF if I find the time to do benchmarks and probably train it a little bit more!
Jared Palmer
@jaredpalmerSep 21
Kev has now been refactored on top of Qwen3.5. New checkpoints are now available at 0.8B, 4B, and 9B along with a fine-tuning script you can use with @modal. github.com/jaredpalmer/kev
1
3
13
1,737
Jakub Romańczyk retweeted
Shane Parrish
@shaneparrishSep 15
Don’t use AI to save yourself time by wasting someone else’s.
Shane Parrish
@shaneparrishSep 15
Lazy work used to mean too little output. Now, with AI, it often means too much and more work for everyone else. @tobi call it "slop grenades." A "Slop Grenade" is when you let AI produce the work and pass it on without adding any value (including checking it). Someone else has to wade through it, catch the mistakes, and clean up the mess. You save time and look productive but someone else pays for it.
19
54
7
451
93,488
Jakub Romańczyk retweeted
Szymon Rybczak
@SzymonRybczakSep 15
We raised $1.2M in pre-seed funding for @TesterArmy! Coding agents have changed how fast we build software. We're making sure testing keeps up. TesterArmy's AI agents test web and mobile apps, run through real user flows, and show you what broke with screenshots and recordings. So you can catch bugs before your users do. Backed by Script Capital, Eight Capital, AIP Seed, and angels including @rauchg, @ccheever, @walden_yan, @theo, @zenorocha, @pie6k, @fernandorojo, and many more incredible builders. Thank you to everyone backing us and the teams already testing with TesterArmy. We're just getting started! 🫡
117
21
13
430
84,780
Jakub Romańczyk retweeted
Rork
@rorkSep 10
Introducing Screen Capture A small Rork feature you might have missed: take screenshots in one click or record your app right in the simulator Both are automatically attached to the agent chat, with no extra tools or manual uploads. Show Rork what to change, or share what you’re building with a friend
11
6
1
39
8,492
Load more