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Brittany Ellich @brittanyellich.com · 27/08/2026

At @cascadiajs.com this year I gave a talk about #atproto and the Atmosphere: the open social ecosystem Bluesky and many other apps are built on, and what it means to actually own your data. I made a bunch of silly drawings for it, and I'm sharing them in this 🧵!

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CascadiaJS @cascadiajs.com · 21/07/2026

Karaoke still runs on technology from the '80s. 🛼 What if we rebuilt it with Web Audio, AI, open-source models, and modern web APIs? Watch @monteslu.com give one of the most delightfully nerdy talks from CascadiaJS 2026. youtu.be/wk2Fj2H5eoI

CascadiaJS. Luis Montes. Hold Me Closer, Tony Danza. Photo of Luis Montes on stage at CascadiaJS 2026.

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CascadiaJS @cascadiajs.com · 20/07/2026

AI agents are getting real powers. Maybe they shouldn't have permanent credentials. @focusotter.bsky.social shows how human-in-the-loop authorization, scoped OAuth tokens, and short-lived permissions let agents act on your behalf, without giving away the keys to the 🏰. youtu.be/zRs08o4EP74

CascadiaJS. Michael Liendo. Trust, But Verify. Human in the Loop AI. Photo of Michael Liendo on stage at CascadiaJS 2026.

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CascadiaJS @cascadiajs.com · 17/07/2026

📦 What if bundling isn't the performance optimization it used to be? @moonmeister.net makes the case that HTTP/3 has changed the rules, and it's time to rethink decades of web performance advice around bundling, caching, and network requests. youtu.be/F7J-yaGQqJI

CascadiaJS. Alex Moon. The Request Tax: Rethinging Web Performance. Photo of Alex Moon on stage at CascadiaJS 2026.

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CascadiaJS @cascadiajs.com · 16/07/2026

What if you could leave a social platform without leaving your community? @brittanyellich.com explains how the AT Protocol lets you own your identity, your data, and your social graph, opening the door to a more open, portable, and developer-friendly web. 🌐 youtu.be/_ZrChpf8FZ8

CascadiaJS. Brittany Ellich. Building Apps With ATProto. Photo of Brittany Ellich on stage at CascadiaJS 2026.

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CascadiaJS @cascadiajs.com · 15/07/2026

AI doesn't just hallucinate facts, it can hallucinate relationships. 🍄 Watch as @thenyahmacklin.bsky.social shows us how knowledge graphs and context graphs help AI agents reason more accurately, explain their decisions, and become systems you can actually trust. youtu.be/X_1EAwv_-Ow

CascadiaJS. Nyah Macklin. Unlocking AI's Hidden Connections With Graphs. Photo of Nyah Macklin on stage at CascadiaJS 2026.

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CascadiaJS @cascadiajs.com · 14/07/2026

AI can build your UI, but can it keep your brand consistent? 🎯 Watch as @kaelig.fr explains how design tokens give AI agents a shared source of truth, helping teams build interfaces that stay consistent across apps, platforms, and themes. youtu.be/CYy0PrnJISI

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CascadiaJS @cascadiajs.com · 13/07/2026

What happens when you fine-tune an AI on Beowulf, a 17th-century cookbook, and the history of Crisco? 📜 This talk from @mollyjeanbennett.bsky.social is a delightfully weird and thoughtful look at why making AI worse can actually make it more interesting. youtu.be/tBE8hQjj3KM

CascadiaJS. Molly Jean Bennett. Economically Useless Chatbots. Photo of Molly Jean Bennett on stage at CascadiaJS 2026.

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CascadiaJS @cascadiajs.com · 10/07/2026

If AI only learns from yesterday's ideas, who creates tomorrow's? Marty Nelson makes the case for building software that breaks new ground, and shares how to help AI work with innovation instead of reinforcing the status quo. youtu.be/_pUpE2WM2zw

CascadiaJS. Marty Nelson. Teaching LLMs New Tricks. Photo of Marty Nelson on stage at CascadiaJS 2026.

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CascadiaJS @cascadiajs.com · 09/07/2026

A live-coded morning rave is a memorable way to start a conference talk. 🪩 Watch as Alex Hinson shows how to build fast, private, task-specific AI tools with small local models, and why the right architecture matters more than simply calling the biggest LLM you can find. youtu.be/V_h_tMGgf6w

CascadiaJS. Alex Hinson. Accelerating Musical Live Coding With On-Device AI. Photo of Alex Hinson on stage at CascadiaJS 2026.

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CascadiaJS @cascadiajs.com · 08/07/2026

Will AI make programming languages irrelevant? 😲 Watch as Filip Sodić argues the opposite: as AI writes more code, strong type systems become even more valuable. youtu.be/WxhlRSfyxjY

CascadiaJS. Filip Sodic. TypeScript Matters More Than Ever. Photo of Filip Sodic on stage at CascadiaJS 2026.

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CascadiaJS @cascadiajs.com · 07/07/2026

Everyone wants to build AI tools. The hard part is proving they actually help. Watch as Jeff Otaño shares how OneBrief stopped chasing flashy demos, started measuring real outcomes, and used feedback loops to improve AI agents that fix production bugs. 🪲 youtu.be/LCKraOtFV-Q

CascadiaJS. Jeff Otano. Building an AI Platform Engineers Actually Trust. Photo of Jeff Otano on stage at CascadiaJS 2026.

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CascadiaJS @cascadiajs.com · 06/07/2026

AI may be changing software development, but it isn't replacing the need for junior developers. 🧑‍💻 Listen to Dylan Goings and learn why mentorship, diversity, and long-term knowledge transfer are more valuable than ever. youtu.be/S5XLYOsJ1u8

CascadiaJS. Dylan Goings. How to Build a Junior Dev Team. Photo of Dylan Goings on stage at CascadiaJS 2026.

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CascadiaJS @cascadiajs.com · 03/07/2026

🧩 Design systems can't solve every UI problem. Watch as @jonathankeslin.com shares practical lessons for building shared components that scale across teams, with layered extensibility, sensible defaults, and escape hatches that keep both devs and products moving forward. youtu.be/haOndDHMGJQ

CascadiaJS. Jonathan Keslin. Shared Components Beyond the Design System. Photo of Jonathan Keslin on stage at CascadiaJS 2026.

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CascadiaJS @cascadiajs.com · 02/07/2026

What happens when your "simple" API grows into an unmaintainable mess? 😅 This talk by @darius.cool explores the tradeoffs between configuration and composition, and why the right abstractions matter more than ever in the age of AI. youtu.be/dExasNlhVKM

CascadiaJS. Darius Cepulis. The Abstraction That Broke at Scale. Photo of Darius Cepulis on stage at CascadiaJS 2026.

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CascadiaJS @cascadiajs.com · 01/07/2026

What if AI agents use specs, not just prompts, to build software? Watch @ide.bsky.social, co-founder of @expo.dev, explain linked literate programming, a simple approach that keeps code, specifications, and intent in sync so AI can build more accurate, maintainable software. youtu.be/a8xYFd1ZLNQ

CascadiaJS. James Browswer APIs Beyond the Browser. Photo of James Ide on stage at CascadiaJS 2026.

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CascadiaJS @cascadiajs.com · 30/06/2026

The best use of AI isn't writing code, it's helping you learn. 💡 Watch @daniel-mendoza.bsky.social's practical guide to mastering new frameworks by turning your AI assistant into a tutor instead of a code generator. youtu.be/foOOku3P9uQ

CascadiaJS. Daniel Mendoza. Learning Vue as a React Developer With AI. Photo of Daniel Mendoza on stage at CascadiaJS 2026.

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CascadiaJS @cascadiajs.com · 29/06/2026

Ever click a button and wonder why your app freezes? 🤔 @cyatteau.bsky.social shows how web workers keep JavaScript apps responsive by moving CPU-intensive work off the main thread, with practical patterns for progress updates, cancellation, and debouncing. 📺️ Watch here! youtu.be/rh4RzLLPSis

CascadiaJS. Courtney Yatteau. Keep the Main Thread Free With Web Workers. Photo of Courtney Yatteau on stage at CascadiaJS 2026.

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CascadiaJS @cascadiajs.com · 29/06/2026

Binge-watching this year's talk videos and getting serious FOMO? Don't miss out, join us in 2027! luma.com/cascadiajs-2...

Attendees laughing in the audience at CascadiaJS 2026.

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CascadiaJS @cascadiajs.com · 26/06/2026

CSS colors got a lot more powerful while most of us weren't looking. 🎨 In this talk @jdsteinbach.com demonstrates how features like light-dark(), relative colors, and contrast-color() can simplify theming, reduce design tokens, and make accessibility easier using browser capabilities.

CascadiaJS. James Steinback. Practical Refactors With Modern CSS Colors. Photo of James Steinback on stage at CascadiaJS 2026.

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CascadiaJS @cascadiajs.com · 25/06/2026

What if the future of software development isn't one AI agent, but hundreds? 🤖 In this talk @joelhooks.com explores agent swarms, harness engineering, AI-powered workflows, and why the real challenge isn't building smarter agents, it's designing systems that make the best use of human attention.

CascadiaJS. Joel Hooks. AI Swarms Are Amazing. Photo of Joel Hooks on stage at CascadiaJS 2026.

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CascadiaJS @cascadiajs.com · 24/06/2026

AI coding agents are a lot like eager interns: they'll build exactly what you ask for... even when it's not what you meant 😅 In his CascadiaJS 2026 keynote, @erikch.bsky.social of AWS explains how spec-driven development helps teams get better results from AI coding tools. youtu.be/CGCLMky4OO8

CascadiaJS. Erik Hanchett. Spec-Driven Development for Production. Photo of Erik Hanchett on stage at CascadiaJS 2026.

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CascadiaJS @cascadiajs.com · 23/06/2026

JavaScript won the web. But more and more, when you peel back the covers, you see Rust 🦀 @francescociulla.bsky.social opened Day Two of CascadiaJS 2026 exploring why companies like Cloudflare and others are using Rust for performance-critical infrastructure, and where it fits alongside JavaScript.

CascadiaJS. Francesco Ciulla. Javascript won the web, Rust took the critical path. Photo of Francesco Ciulla on stage at CascadiaJS 2026.

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CascadiaJS @cascadiajs.com · 22/06/2026

Joe Duffy, Founder and CEO of @pulumi.com, closed out Day 1 of CascadiaJS 2026 with a look at what happens when AI agents move beyond writing code and start handling the messy world of infrastructure, deployment, and operations. youtu.be/SOMEfFNPsew

CascadiaJS. Joe Duffy. The Last Mile is Code. Photo of Joe Duffy on stage at CascadiaJS 2026.

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CascadiaJS @cascadiajs.com · 19/06/2026

We were so excited to have @biilmann.blog, the founder and CEO of @netlify.com, kick off CascadiaJS 2026 with a keynote on the arrival of AX. AI agents are becoming users of our products, and Matt shares why the next frontier isn't just UX or DX, but AX. youtu.be/EXeCOsIu0Ps

CascadiaJS. Matt Biilmann. The Rise of Agent Experience. Photo of Matt Biilmann onstage at CascadiaJS 2026.

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CascadiaJS @cascadiajs.com · 17/06/2026

Talks from CascadiaJS 2026 are going up, and we're going to kick things off with the epic closing keynote from @t3.gg where he dropped lakebed.dev and talked about how it's time for developers to rethink... everything! youtu.be/TV6f2weVgCI

CascadiaJS. Theo Browne. It's time to rethink everything. Image of Theo on stage at CascadiaJS 2026.

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CascadiaJS @cascadiajs.com · 11/06/2026

Keep the community vibes going at @SeattleJS.com tonight! Hang out with fellow devs and hear talks on open payments on the web and AI-driven development workflows. First 50 people who arrive get $10 off of food & drinks at Just the Tap! luma.com/wlumxv7f?lm_...

luma.com

SeattleJS: Web Tech Talks - June · Luma

🎉 Get ready to learn and connect at SeattleJS! 🎉 Prepare for an evening filled with fun, networking, and learning. Whether you're a seasoned developer or…

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aaronfreedman.bsky.social @aaronfreedman.bsky.social · 04/06/2026

This week I had the chance to attend #CascadiaJS. It was the first developer conference I’ve ever attended, and I’m still reflecting fondly on the experience. Thank you, @cascadiajs.com. Already looking forward to the next one. #CascadiaJS #SoftwareDevelopment

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Daniel Mendoza @daniel-mendoza.bsky.social · 04/06/2026

One of the best things that came out of @cascadiajs.com is this gif lmao @francescociulla.bsky.social

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Tobbe @tobbe.dev · 04/06/2026

Such an epic conference! As always, I learned so much, met so many awesome people, and left more inspired than ever to go home and build cool things

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CascadiaJS @cascadiajs.com · 03/06/2026

CascadiaJS 2026 is a wrap! Thank you to our speakers, sponsors, staff, attendees and everyone who supported us along the way to make this event happen. We put 💯 Blind Bird tickets for CascadiaJS 2027 on sale, grab one before they sell out and lock-in your spot! 🌲 luma.com/cascadiajs-2...

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Brian Gershon @brianfive.xyz · 03/06/2026

As we were singing karaoke last night at @cascadiajs.com wrapping up a great conference, hours earlier we learned origin story or low-res imagery alongside karaoke songs. Why does this 1986 CD+G format still exist, and what’s a modern take on what you can build today? Check out Luis’ project.

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Mark Greenwood @markgreenwood-pdx.bsky.social · 03/06/2026

Fun folks at @cascadiajs.com got me to do karaoke for the first time ever...

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Molly Jean @mollyjeanbennett.bsky.social · 03/06/2026

Thank you, Tom! I had so much fun at @cascadiajs.com

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Daniel Mendoza @daniel-mendoza.bsky.social · 03/06/2026

@cascadiajs.com was amazing. Thank you for the opportunity to speak to the amazing community, thank you to @storyblok.com for supporting me, and thank you all who attended my talk. The speakers, community, ans organizers are amongst the most passionate that I have ever encountered. Thank you ❤️

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CascadiaJS @cascadiajs.com · 03/06/2026

Thanks to CopilotKit for being a Gold Sponsor at CascadiaJS 2026 this year ❤️ CopilotKit is the agentic frontend stack & the company behind the AG-UI protocol. It's the easiest way for bring AI functionality (like Generative UI) to full stack apps. Learn more at: cascadiajs.com/2026/sponsor...

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RoxyRodBeck @roxyrodbeck.bsky.social · 03/06/2026

Harmonizing/screaming with super fun folks is always a great way to wrap up a tech conference. 😆🔥 @cascadiajs.com #CascadiaJS

5 people smiling outside of a building and a crowd behind them

Four people on a couch in a karaoke room

A man holding a mic singing and linkin park lyrics on the screen

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Mark Palfreeman @mark.palf.io · 02/06/2026

I've been 👻 public work/tech/web spaces for *a while* but I'm popping my head up for @cascadiajs.com! I'm a frontend-focused engineer, utterly confused at what my job will look like in 2-3 years 😂 Would love to say hi and meet new faces too 👋 #cascadiajs

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Jason Grigsby @gri.gs · 02/06/2026

Second day of @cascadiajs.com. Had a great time yesterday meeting a bunch of new friends. Hoping for more today. Looking forward to @brittanyellich.com's talk on ATProto and @moonmeister.net performance talk.

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