Siquijor, Central Visayas
Dennis Cual retweeted
Qwik v2 beta is... over! 🎉 🎉 ⚡️ Now in Release Candidate ⚡️ Laying out the foundations for a fully capable resumable future: fast reactive updates, out of order streaming, async computations, error and pending states... Discover more in the blog post 👇 next.qwik.dev/blog/qwik-2-rc…
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Dennis Cual retweeted
You can now mod Claude Code: - Change how it behaves - Customize the UI - Swap in your own features Write one with a few lines of TypeScript, or have Claude build it for you. Mods ship inside plugins, so you install them with /plugin in the CLI or desktop app. A few examples:
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Dennis Cual retweeted
The future is verification-engineering. Proofs, (e2e) tests, benchmarks, linters… Some tests will be deterministic, some agentic. This looks great.
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
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Finally!
Running agents in parallel puts more pressure on memory. We’re making Rspack use less memory to help
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Dennis Cual retweeted
I¹ ported my Mini web browser to Rust & Swift. It's faster, more secure, and shockingly, nicer to iterate on than Electron + Bun. I always wanted Safari-like UX but… Chrome 😁. Thanks to the 𝚌𝚎𝚏 crate, I can bundle up-to-date Chromium. 𝚏𝚡 𝚊𝚌𝚙 lets me embed an agent without bloating the app. It talks to my local fx CLI over ACP. fx can then manage the browser via an MCP server². By ditching Electron, I was able to get Liquid Glass, faster boots, and a more Mac-native feeling. Little things like fine-grained focus and input control, which are nightmare fuel in JS, just work®. Native is the future, both on the desktop and in the cloud. I suspect the entire software world will "nativify" faster than people realize, as DHH hinted at Rails World. Excited that Vercel's bet on Fluid will help support this, whether you choose to go Rust, Go, Zig, scriptc… ¹ Built on fx.sh with Opus 5.5 and Sol 6 ² In the process I learned about agentclientprotocol.com/rfds…, which I'm now really excited about. This will allow a more secure and direct way to expose MCP tools
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Dennis Cual retweeted
here's how i shipped 2,500 PRs last month to production this was originally supposed to be for Cursor Compile in London. i couldn't make it since i was livestreaming for Grok @Bot Galaxy so i'm making it available for free here on X! watch it on 2x speed, i talk slowly
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Dennis Cual retweeted
new post: the senior engineer death spiral sunilpai.dev/posts/the-senio… a friend just started a big job and asked for some advice. so I braindumped a monologue about a super common failure mode I see with engineers and posted it here, hope it helps whoever it can.
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Dennis Cual retweeted
I can't believe it has taken me this long to get to read this absolute gem of a discussion between @RyanCarniato and @trueadm while most folks are still stuck on "use react because it's in the weights", both ryan and dom are as usual uncovering the frontiers of modern tooling for agentic engineering i've still only read the summary, can't wait to dig into the full discussion gist.github.com/aleclarson/0…
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Dennis Cual retweeted
After co-inventing ChatGPT, I kept asking myself: why have superhuman chat models not led to AGI? I’ve spent the last 2 years in stealth building a new way to train models (RLCD), and a new type of frontier AI model that we are releasing today: Jev • 20-200x faster • 40-400x cheaper (w/ output tokens free) • Frontier composable intelligence optimized for decisions AFAICT the shortest path to AI-based economic revolution
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Dennis Cual retweeted
At Anthropic, Claude now writes 80% of our code. Engineers ship 8x more code per quarter. Side effect: Tests grew 10x. CI jobs up 25x in 6 months. Here's what helped us scale: claude.com/blog/agentic-codi…
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Dennis Cual retweeted
New week new demo! Today I want to showcase the CLI to control the @superlogical multiplexer. The CLI is an extremely powerful tool for automation and hooking into other tools like editors, agentic coding tools, and more. And, it's super fun! Everything you can do in the GUI, you can do via the CLI. Actually, you can do more in the CLI. You can create sessions, run commands, make splits, move things around, change focus, simulate any input device (key/mouse/etc.), wait on scripts, and more. There are a couple unique parts of Rex I'm showing off here too: our streaming event system that any client can hook into (or script). And the terminal-specific API to retrieve information like a JSON object of the running process. I hope this demo lets your imagination run free of where you might slot something like this into your existing tools.
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Dennis Cual retweeted
Setting my subagent model to Opus has helped me save so much usage on Fable 5.1. It really likes to spawn subagents but mine rarely need Fable-level reasoning `CLAUDE_CODE_SUBAGENT_MODEL=opus`
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If we just read the Pull Request instead of stepping into the llm mind, then that reduce the cognitive load we get from reading the whole session.
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Perfectly explains why RN remains more relevant than ever 👌 The point of RN is not to have all your code in JS But an interpreted layer on top of native brings signifigant advantages that complete nicely the native side, notably OTA and server-driven UIs
Here's what I think about the @ShopifyEng RN → native migration article: When I rebuilt the Expo Go UI using Jetpack Compose last year, I already felt that all declarative UI frameworks are fairly similar in use, and that agents do a good job migrating between them when it comes to presentation layers. So I'm not surprised Shopify found it possible to fairly quickly rewrite an existing RN app into two separate native codebases. That was always the easier part. I think the main problem lies in making sure the business logic layer doesn't diverge when there's nothing keeping it together. We introduced a few minor differences between the two Expo Go platforms despite trying very hard not to. And consistency vs platform feel is one more question of taste, not something an agent will always solve for you. I don't think react-native will go away, but I definitely feel react-native is evolving, will evolve further, and I have a couple of predictions: ➡️ More and more low level UIs as native components (either ExpoUI or local expo modules with native code files mixed with JS). Agents are great at writing presentation layers, so why bother having JS lists with all that complexity and perf costs? ➡️ OTAs are more important than ever, prepare for changes ahead of time. Slow app store review times vs cheap code push people to allow more customisability from JS, essentially treating the JS layer as server driven UI. ➡️ New UI paradigms mean RN remains valuable. Think custom, per-user interfaces (made for you UIs streamed inside chat, customizable apps etc.) – you need an interpreted higher level abstraction layer that's easier to define and has an SDK. ➡️ Focus on brownfield with no clear set boundaries. Agents pick and choose if they want to build experiences in native or in JS, with most components/APIs/libraries available both as JS and native entrypoints. In general: I don't think the falling cost of writing lower level code makes abstractions automatically obsolete. You get for free a lot of community effort on deciding/mapping platform quirks, stuff that would cost tokens and engineering effort otherwise, or even worse, would be missed and be a long-running paper-cut in your app. I think it makes it necessary to make abstractions lock-in free. Use these opinions and higher level components when they make sense and give value, use lower level super easily and cheaply otherwise. That's why I'm excited about stuff like Expo UI, the new modules API, our @swmansion libraries that work for both RN and native, and all the other effort we did as a community to make mixing those approaches possible and pain free.
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Cool!
A quick look into remote persistent sessions with Superlogical! Not just remote sessions, but some functionality like remote directory lists, too. Superlogical can actually be a full SSH replacement (I don't run SSH on my servers anymore), and I talk about that briefly, too.
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Dennis Cual retweeted
React 19.3 is now available! This release makes View Transitions and Fragment Refs stable, and adds browser(), Trusted Types support, and Context in Server Components. react.dev/blog/2026/09/09/re…
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