java

A Netflix engineer describes how Netflix uses Java in 2025, including Spring Boot, DGS/GraphQL, gRPC and keeping over 3000 services on the latest JDK. It covers generational ZGC upgrade experiences.

A short video built around Douglas Crockford, creator of JSON, saying JavaScript is a flawed language and that developers should eventually move on from it. It is a brief commentary clip with little technical detail.

A roughly three-hour Lex Fridman podcast conversation with Brendan Eich, creator of JavaScript and co-founder of Mozilla and Brave. It covers JavaScript's rushed creation at Netscape, the browser wars, Firefox and Mozilla, and Brave's privacy approach.

Andreas Kling live-codes a prototype JavaScript JIT compiler for the LibJS engine used in SerenityOS and Ladybird. He builds a standalone bytecode VM, a simple interpreter, and then a simple JIT in about 80 minutes.

A comedy sketch by Kai Lentit in which a senior JavaScript developer is interviewed, parodying the chaos of the JavaScript ecosystem.

Omar Rizwan's short !!Con talk about writing a Breakout game in JavaScript that runs inside a PDF. It explores the surprisingly large PDF specification, including its scripting support.

A short parody sketch of a job interview with a senior JavaScript developer, poking fun at the JS ecosystem and trendy stacks.

A Rubber Duck Engineering episode on the years before Flutter, covering web projects and three JavaScript frameworks that influenced it, and the early DOM-based, network-loaded Flutter.

James Long's dotJS 2019 talk on how CRDTs enable local-first apps and how simple they can be to implement. He shows how to use them to build robust offline-capable frontends.

A five-minute video showing how to build a counter in the Imba web programming language in under a minute, then style it.

Phoenix creator Chris McCord builds a real-time Twitter-style app live with Phoenix LiveView 1.5 in about 15 minutes. It shows interactive, real-time updates without writing JavaScript.

Wes Bos breaks down the techniques behind the McMaster-Carr website's speed: server-rendered HTML, prefetching, CDN and service worker caching, preloading, critical CSS and fixed-size images. He also notes its old-school jQuery and YUI JavaScript.

Richard Feldman's GOTO Copenhagen 2022 talk on why dynamic languages like Python, Ruby, PHP and JavaScript rose in the 1990s and why each now has a popular static type checker. It argues that modern static typing recovers the advantages that made dynamic languages attractive.

Leptos creator Greg Johnston examines Rust/WebAssembly frontend frameworks against JavaScript frameworks using the JS framework benchmark. He argues that WASM is no longer too slow for DOM-heavy rendering.

Roman Elizarov compares Kotlin Coroutines with OpenJDK Project Loom virtual threads, looking at their design goals and how those translate into different implementations and tradeoffs. He addresses how the two can coexist.

Andrej Karpathy's first Neural Networks: Zero to Hero lecture, which builds micrograd, a tiny autograd engine, from scratch in Python. It explains backpropagation and neural network training step by step, assuming only basic Python and some high-school calculus.

Miguel de Icaza's GodotCon 2023 talk on Swift bindings for Godot. He argues that garbage-collector pauses in C# are a persistent problem and that Swift's reference counting avoids them.

David Guillot describes how his team replaced a two-year-old React UI of their SaaS product with Django templates and htmx in a couple of months. The talk gives concrete indicators on code size, performance and team impact.

David Beazley's PyData Global 2021 keynote, an oral history of early scientific Python. He tells how Python ended up running on a Connection Machine supercomputer at Los Alamos.

Robert Erdmann, a materials scientist at the Rijksmuseum, gives a PyCon keynote on the ultra-high-resolution imaging of Rembrandt's Night Watch. He covers the automated gantry camera system, the Python software that drives it, and the large volumes of image data involved.

DHH's opening keynote at Rails World 2024 in Toronto, where Rails 8 beta shipped. It covers built-in authentication, Propshaft, Solid Cache, Solid Queue, Solid Cable, Kamal 2 and Thruster, pitching the One Person Framework that needs no PaaS.

A talk by Yuri Iozzelli at a WebAssembly meetup on CheerpX, an x86 virtual machine running in the browser. It uses a JIT compiler that emits WebAssembly at runtime to run real native applications. It covers the architecture and demos such as porting a multiplayer C++ game.

Lex Fridman interviews Travis Oliphant, creator of NumPy, SciPy and Anaconda, about scientific Python and its history. It runs about three hours.

Charlie Marsh of Astral explains how uv, a Rust Python package manager, got so fast. He covers allocators, concurrency, zero-copy tricks and the challenges of Python packaging.

David Nolen explains how ClojureScript is used at Vouch.io to build mobile and web software with a single language and REPL-driven workflow. The talk includes a live coding demo of React Native development.

Aaron Francis walks through how PHP has changed from 2012 to 2023, covering traits, array destructuring, generators, typed properties and more. It is a quick chaptered tour of modern PHP features.

Luke Wagner of Fastly explains what a WebAssembly component is, how it relates to familiar concepts, and what the Component Model enables. It emphasizes security, composability and modularity.

Andy Bell's 2022 talk on hinting the browser rather than micromanaging it, using progressive enhancement, CSS layout, fluid type and space, and modern CSS to build resilient front-ends.

In a long live-coding session, Andreas Kling works on making the Cookie Clicker game playable in the Ladybird browser from SerenityOS. He tracks down bugs in the browser engine and fixes them.

Rik Arends presents Makepad, a Rust UI framework, at RustNL 2023. The talk covers designing modern, GPU-fast UIs with Rust and includes live-coded demos of an IDE and a synthesizer.

MegaLag investigates PayPal's Honey browser extension, showing how it swaps affiliate attribution and was promoted by large YouTube influencers. It includes technical demonstrations of the affiliate tag replacement in browser dev tools.

A roughly three-hour Lex Fridman podcast conversation with Guido van Rossum, the creator of Python. Topics include Python's design, the GIL, asyncio, the future of programming and AI coding tools.

Jake Archibald argues that URLs are nearly impossible for humans to interpret, especially for security. He walks through what browsers do about it, including highlighting the registrable domain, and floats a possible better design.

Fernando Rojo explains how BeatGig reached $10M in sales with one frontend engineer by sharing code between React Native and Next.js, covering navigation, animation, theming and performance.

A Linear engineer talks about scaling the company's sync engine, which keeps client data local and synchronized. It follows an earlier talk on the same system.

React Helsinki meetup recording featuring a talk on lessons with Apollo GraphQL and Linear co-founder Tuomas Artman on real-time sync for web apps. The sync talk explains Linear's local-first architecture.

Felienne Hermans presents Hedy, a gradual programming language for teaching kids that moves through levels from almost no syntax toward full Python. The talk covers why error messages and syntax are scary for beginners.

Anders Hejlsberg introduces the native port of the TypeScript compiler, written in Go, which promises roughly 10x faster tooling. He demos compiling VS Code and explains where the speedup comes from.

Rich Harris's Svelte Summit 2020 talk on what a modern web development workflow could look like. It announced that Sapper would give way to what became SvelteKit.

A JuliaCon talk by a NASA Launch Services Program engineer on modeling spacecraft separation dynamics in Julia. He describes replacing a Simulink-based workflow for checking launch vehicle separation requirements with Julia and ModelingToolkit, with large speedups and much shorter code.