874: Fast Apps - Easy Perf Wins

What are Web Vitals, and why should you care? Scott and Wes break down metrics like LCP, FCP, CLS, and INP, explaining what they measure, how they impact your site’s performance, and how to track them yourself. Show Notes 00:00 Welcome to Syntax! 03:26 What each web vital means. Web Vitals Playground. 03:38 LCP - Largest Contentful Paint. 05:04 FCP - First Contentful Paint. 06:07 CLS - Cumulative Layout Shift. 10:58 INP - Interaction to Next Paint. 13:43 Measuring the impact. 14:22 TTFB - Time to First Byte 15:27 How to track this on your own. 17:42 Checking the performance of Syntax.fm. 21:07 Brought to you by Sentry.io. Sentry Web Vitals. 21:49 Checking the performance of Wes’ site. Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads Wes: X Instagram Tiktok LinkedIn Threads Scott: X Instagram Tiktok LinkedIn Threads Randy: X Instagram YouTube Threads

Wes and Scott talk with Aaron Francis about Fusion for Laravel, a new way to seamlessly integrate PHP into JavaScript. They discuss how Fusion expands on Inertia, its potential for React support, and how it simplifies full-stack development. Show Notes 00:00 Welcome to Syntax! 01:22 Aaron’s background in PHP Yii Laravel 02:27 What is Fusion for Laravel? Fusion for Laravel 09:14 How Fusion works 13:57 The benefits of Laravel 19:18 Invalidation and caching 25:20 Brought to you by Sentry.io 25:32 Optimistic UI 28:28 React integration? 31:44 Fusion’s original name (and the naming process) 33:30 Laravel’s approach to frontend frameworks Livewire 37:32 Databases and scaling 41:27 Postgres extensibility and hosting options Crunchy Data Xata 47:44 The vision for Fusion 48:31 Sick Picks + Shameless Plugs Sick Picks Aaron: Better Display CLI Shameless Plugs Aaron: High Performance SQLite Mastering Postgres Screencasting.com Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads Wes: X Instagram Tiktok LinkedIn Threads Scott: X Instagram Tiktok LinkedIn Threads Randy: X Instagram YouTube Threads

Scott and Wes answer your listener questions! They debate Axios vs. Fetch, discuss whether Next.js is overkill without a backend, talk htmx and Alpine, dive into tech career transitions, and tackle everything from podcast ads to password hashing myths. Show Notes 00:00 Welcome to Syntax! 00:55 Scott’s health update. 04:11 Submit your questions. 04:26 Is Axios still worth using over Fetch? shiki. xior. ky. 10:17 Does Alpine.js solve HTMX’s client-side limitations? Syntax Ep. 868: The State of JavaScript. Server Driven Web Apps With HTMX. Syntax Ep. 568: Supper Club × Caleb Porzio. Alpine.js. Inertia.js. 16:47 How should I host my database for a local-first app? Neon Tech 22:50 Brought to you by Sentry.io. 24:14 Should I use Next.js if I want a separate backend? Create Vite Extra. 32:08 Are ad networks like BuySellAds worth it for podcasts? 36:36 Can I transition from airline pilot to senior software developer? 41:23 Is Base64 encoding a valid alternative to password hashing? 45:43 How do I use unexported functions from a third-party package? 48:09 How do you stay on top of package and browser updates? Syntax Ep. 425: Updating Project Dependencies. npm-check-update. 52:38 Why are Chrome and Firefox’s mobile presets outdated? 57:20 Should I give feedback on bad UX/UI designs from agencies? 01:01:53 Sick Picks + Shameless Plugs. Sick Picks Scott: Nothing Ear (a). Wes: SmallRig Phone Cage. Shameless Plugs Wes: Syntax on YouTube. Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads Wes: X Instagram Tiktok LinkedIn Threads Scott: X Instagram Tiktok LinkedIn Threads Randy: X Instagram YouTube Threads

Wes and CJ talk with Paulus Schoutsen, creator of Home Assistant, about the future of smart homes, AI-powered automation, and open-source innovation. Show Notes 00:00 Welcome to Syntax! 00:29 What is Home Assistant? 03:32 Web Components in Home Assistant Home Assistant Frontend 10:41 Home Assistant’s stability and longevity 17:05 Is Home Assistant the biggest open-source project using web components? 20:03 How does the native app work? 23:34 Code sharing between Android and iOS 24:17 Self-hosting Home Assistant 28:13 Brought to you by Sentry.io 30:47 Bundle size and memory usage 32:29 How AI and voice assistants are shaping the future of Home Assistant Talking with Home Assistant 37:16 How Paulus made it possible to flash microcontrollers directly from the browser Open Home Foundation 43:48 Web Serial and Web Bluetooth APIs 47:03 Matter, Zigbee, and Z-Wave – where smart home standards are headed Matter Zigbee Z-Wave 51:17 Paulus’ smart home setup Reolink Yale 53:16 Sick Picks + Shameless Plugs Andrew Schmelyun Sick Picks Paulus: Bambu 3d Printer Shameless Plugs Paulus: Nabu Casa Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads Wes: X Instagram Tiktok LinkedIn Threads Scott: X Instagram Tiktok LinkedIn Threads Randy: X Instagram YouTube Threads

Wes and CJ break down everything Cloudflare—from Workers and R2 Storage to Hyperdrive and AI Gateway. Get the scoop on what makes Cloudflare tick, the quirks of their ecosystem, and whether vendor lock-in is a real concern. Show Notes 00:00 Welcome to Syntax! 01:40 Brought to you by Sentry.io. 01:58 What we’re talking about today. 02:48 Cloudflare Workers. 03:06 How Cloudflare Workers… work. 04:39 How Cloudflare Workers run. 06:05 Workers size limitations in JavaScript. 07:37 Cloudflare has their own way. 08:13 Potential vendor lock-in. 08:51 You pay based on CPU time, not wall time. 10:26 Cloudflare Pages. Compatibility Matrix 12:07 Durable Objects. Zeb X Post. PartyKit.io, tldraw. 16:41 Cloudflare Workflows. 19:52 How we do something similar on Syntax.fm. 20:52 Cloudflare Queues. 25:26 Files. 26:15 R2 Storage. Ep 780: Cloud Storage: Bandwidth, Storage and BIG ZIPS. 28:00 The Open Bandwidth Alliance. 28:39 Image Pipelines. 33:24 Cloudflare Stream. Streaming Video in 2025. 34:24 Data. 36:37 Key Value. 40:16 Time To Live. 41:13 Hyperdrive. How It Works. Query caching. 44:01 Vectorize Data. 45:41 AI Gateway. 47:49 Automated Rate-Limiting. 48:50 Frameworks. Orange.js. 52:13 Analytics Engine. Counterscale. Ep 761: Cloudflare Analytics Engine, Workers + more with Ben Vinegar. 52:52 WebRTC Engine. 53:01 Puppeteer API. 54:09 Sick Picks + Shameless Plugs. Sick Picks CJ: Flush MicroSD Adapter for Macbook Wes: Synology. Shameless Plugs Wes: Syntax on YouTube. Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads Wes: X Instagram Tiktok LinkedIn Threads Scott: X Instagram Tiktok LinkedIn Threads Randy: X Instagram YouTube Threads

Wes and Scott talk with Daniel Roe about Nuxt and Nitro, demystifying the UnJS ecosystem, serverless deployments, open-source sustainability, and the future of full-stack web development. Show Notes 00:00 Welcome to Syntax! 02:52 Daniel’s work with Nitro Nitro 06:01 What’s the connection between Nitro and Nuxt? Nuxt 09:23 What makes something an UnJS package? UnJS 12:55 Nitro’s built-in features 18:21 What would Daniel use to build an app today? Cloudflare Vercel Netlify 28:01 Brought to you by Sentry.io 28:36 Nuxt and SST SST 32:25 Nuxt vs. Next.js in 2025 Next.js 40:06 Keeping docs up to date 44:46 Who is behind the fantastic design of the Nuxt website? Anthony Fu Rmoon Vite 47:27 Why is Vue awesome? Vue alien-signals 52:47 How do you make money in full-time open source? 55:32 Sick Picks + Shameless Plugs Sick Picks Daniel: DeskPad Shameless Plugs Daniel: React to Nuxt Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads Wes: X Instagram Tiktok LinkedIn Threads Scott: X Instagram Tiktok LinkedIn Threads Randy: X Instagram YouTube Threads

Tailwind 4.0 is here, and Scott and Wes break down all the spicy new features, from CSS-powered configs to first-class container queries. Plus, they dig into Tailwind Oxide, @property magic, and whether it’s finally time to stop asking, “Why not just use normal CSS?” Show Notes 00:00 Welcome to Syntax! 00:16 Brought to you by Sentry.io. 01:03 Tailwind 4. Tailwind CSS V4.0 Blog. 02:53 Wes’ favorite new feature. 05:45 @property. CSS Houdini API. 07:28 The config is now a CSS file. 08:25 Tailwind Oxide. 10:48 P3 color space. 12:36 Dynamic Utilities + Variants. 13:36 Data attributes. 15:32 First class container query support. 17:03 Starting Style. 19:22 When to use inline styles. 20:13 Descendant selector. Styling Descendants. 20:48 Why not just use “normal” CSS? 22:03 No text shadow support. Scott has to use Tailwind. Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads Wes: X Instagram Tiktok LinkedIn Threads Scott: X Instagram Tiktok LinkedIn Threads Randy: X Instagram YouTube Threads

Wes and Scott talk about the Web Audio and Web MIDI APIs, diving into how they enable powerful music and sound manipulation in the browser. They explore MIDI messaging, synthesizing audio, creative coding with music, and share hands-on projects, tips, and libraries to get started. Show Notes 00:00 Welcome to Syntax! 01:17 Brought to you by Sentry.io 02:04 Fun audio experiments Bebot 05:32 What is MIDI? Web MIDI API 14:18 Advanced examples with WEBMIDI.js WEBMIDI.js 17:02 Outputting MIDI messages 24:40 Exploring the Web Audio API webmidirtc 31:20 Audio sampling in the browser 37:35 Media Recorder 39:21 Fun projects MIDI chord machine 42:08 Sick Picks + Shameless Plugs Sick Picks Scott: MX Master 3S Wes: Microcontoller Shameless Plugs The MOST Starred JS Projects Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads Wes: X Instagram Tiktok LinkedIn Threads Scott: X Instagram Tiktok LinkedIn Threads Randy: X Instagram YouTube Threads

JavaScript is missing a built-in way to make variables reactive—but Signals might change that. Scott and Wes break down what Signals are, how they compare to React state, and how different frameworks like Preact, Solid, Vue, and Qwik are already using them. Show Notes 00:00 Welcome to Syntax! 01:49 Brought to you by Sentry.io. 02:28 Why JavaScript needs reactive variables. 03:16 What exactly are signals? Signals Proposal. 04:02 Understanding computed state. 04:59 How signals differ from React state. 06:12 How different frameworks handle reactivity. 07:09 DOM Parts. Pull Request. 07:26 HTML Template Instantiation. Template Instantiation. 09:10 Comparing signals across frameworks: Preact, Solid.js, Vue, and more. PreactJS Signals. Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads Wes: X Instagram Tiktok LinkedIn Threads Scott: X Instagram Tiktok LinkedIn Threads Randy: X Instagram YouTube Threads

Is your app feeling sluggish? Scott and Wes break down the biggest performance bottlenecks—like bloated assets, slow databases, and waterfall requests—and share easy wins to make your site feel lightning fast. From smarter caching to preloading tricks, these tips will have your app zipping along in no time! Show Notes 00:00 Welcome to Syntax! 00:58 Brought to you by Sentry.io. 02:01 What makes apps slow? 02:10 Loading too much. 03:26 Slow database work. 04:04 Slow server. 04:54 Waterfall requests. 06:34 How do I know what is slow? 06:45 Web vitals. 12:50 Streaming. 14:05 Network tab. 18:18 Performance tab. 22:53 Caching. 22:59 Client-side caching. 23:38 Server-side caching. Valkey.io. Redis.io. 25:40 Local data. 26:11 Gzip. 29:23 CDN. 30:57 Images. Cloudinary. Cloudflare Images. Imgix. Vercel Images. 31:08 Serving. 34:16 Compressing. 35:06 Ship fewer images. 35:50 Loading JS. Async vs Defer Attributes. 37:00 CSS. 38:28 Preloading & Prefetch. 39:40 Preloading on hover. 41:44 Ship less code. 43:49 Icons Nucleo App. 47:01 Fonts Tolin.ski. 51:13 Sick Picks + Shameless Plugs. Sick Picks Scott: Skywalkers on Netflix. Wes: Oxo Swivel Peeler. Shameless Plugs Scott: Syntax on YouTube. Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads Wes: X Instagram Tiktok LinkedIn Threads Scott: X Instagram Tiktok LinkedIn Threads Randy: X Instagram YouTube Threads