The Programming Languages Podcast with Fexingo: Python, Rust, JavaScript, and Modern Coding

Episode 21 of The Programming Languages Podcast digs into the rapidly shifting landscape of AI coding assistants. Lucas and Luna explore why GitHub Copilot — once the market leader — is facing real competition from tools like Anthropic's Claude Code, JetBrains AI, and Cursor. They examine a concrete case: how a mid-sized startup replaced Copilot with Claude Code and saw a 40% reduction in code review cycle time. The hosts break down the architectural differences, the rise of agentic coding, and what this means for developers choosing their stack in 2026. No hype, just the trade-offs that matter.

#AI #CodingAssistants #GitHubCopilot #ClaudeCode #JetBrainsAI #Cursor #DeveloperTools #AgenticCoding #Productivity #CodeReview #TechTrends2026 #LLM #Anthropic #OpenAI #VSCODE #FexingoBusiness #TechnologyPodcast #ProgrammingLanguages

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Episode 20 dives into GraphQL's surprising second life. Five years after the backlash, GraphQL is quietly powering major architectures at GitHub, Shopify, and Netflix. Lucas and Luna unpack the real reason adoption rebounded — not because of the query language itself, but because of a tiny caching layer called the 'persisted query registry'. They walk through how GitHub cut API latency by 40 percent using persisted queries, why Shopify's storefront API survived Black Friday with zero downtime, and what the new Relay compiler means for frontend teams. If you wrote off GraphQL in 2023, this episode might change your mind. No abstract praise — just the concrete design decisions that made the comeback real.

#GraphQL #API #GitHub #Shopify #Netflix #Relay #PersistedQueries #Technology #WebDevelopment #Backend #Frontend #Engineering #Caching #APIDesign #Scalability #FexingoBusiness #BusinessPodcast #ProgrammingLanguages

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Episode 19 explores Haskell's quiet but powerful role in 2026's software landscape. Lucas and Luna examine how this purely functional language, often seen as academic, is powering critical systems at companies like Facebook, GitHub, and Cardano. They discuss Haskell's unique strengths in correctness, concurrency, and domain-specific languages, and why it remains relevant despite competition from Rust and TypeScript. The episode also covers the latest GHC 9.12 release and the growing adoption of Haskell in fintech and blockchain. A concrete look at a language that refuses to fade away.

#Haskell #FunctionalProgramming #PureFunctional #GHC #HaskellInProduction #SoftwareCraft #Technology #FexingoBusiness #BusinessPodcast #PodcastEpisode #ProgrammingLanguages2026 #Fintech #Blockchain #Cardano #Facebook #GitHub #DSL #GHC912

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When you think of programming languages in finance, Python and C++ usually come to mind. But for decades, OCaml has quietly powered some of the most latency-sensitive and correctness-critical trading systems on Wall Street. In this episode, Lucas and Luna explore why quantitative finance firms like Jane Street and Citadel Securities bet big on this functional programming language — from its strong type system that catches errors at compile time to its runtime performance that rivals C++. They dig into real numbers: how OCaml's pattern matching speeds up financial instrument modeling by 30-40% compared to object-oriented alternatives, and why its garbage collector matters less when the real bottleneck is algorithm expressiveness. You'll learn how OCaml's multi-core architecture, released in its 5.x series since 2023, has made it even more viable for modern high-throughput trading systems. If you think functional programming is just for academia, this episode will change your mind.

#OCaml #FunctionalProgramming #QuantitativeFinance #JaneStreet #CitadelSecurities #TradingSystems #FinanceTech #WallStreet #TypeSafety #PatternMatching #MultiCore #ProgrammingLanguages #Technology #SoftwareEngineering #AlgoTrading #FexingoBusiness #BusinessPodcast #PythonVsOCaml

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In this episode, Lucas and Luna explore why Dart—the language behind Google's Flutter—has become the dominant force in cross-platform mobile and desktop development in 2026. They trace its unexpected rise from a niche web language to powering over 30% of new app launches on the iOS and Android app stores, according to recent data from app analytics firm Sensor Tower. The hosts dive into Flutter's unique 'write once, compile native' approach, contrast it with React Native and Kotlin Multiplatform, and discuss how Dart's just-in-time compilation during development and ahead-of-time compilation in production gives it a speed advantage that competitors struggle to match. They also examine the impact of Google's $50 million investment in Flutter tooling in 2025 and the launch of Dart 4.0 earlier this year, which brought pattern matching and algebraic data types to the language. This episode is essential listening for mobile developers evaluating their framework choices and for anyone curious about how a language few predicted would succeed is now reshaping the app development landscape.

#Dart #Flutter #CrossPlatform #AppDevelopment #MobileDevelopment #Google #ReactNative #KotlinMultiplatform #SensorTower #Dart4.0 #PatternMatching #AlgebraicDataTypes #Technology #ProgrammingLanguages #FexingoBusiness #BusinessPodcast #SoftwareEngineering #TechTrends

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Lucas and Luna dive into WebAssembly’s unexpected second life: powering edge computing. They trace how a technology originally designed to bring native-speed code to browsers is now running server-side functions at the edge, slashing cold-start times from hundreds of milliseconds to under a millisecond. The hosts break down a real-world case: a large e-commerce platform that cut its checkout latency by 40 percent by migrating a payment-microservice from Node.js to WebAssembly on Cloudflare Workers. They also unpack the broader shift, including Fastly’s Compute@Edge platform and the rise of Wasm component model. Along the way, Lucas shares why Rust and WebAssembly are a natural pairing, and Luna asks the critical question: does this replace containers, or just complement them? A focused, numbers-driven look at one of the most quietly transformative infrastructure shifts of 2026.

#WebAssembly #Wasm #EdgeComputing #CloudflareWorkers #ComputeAtEdge #Serverless #Rust #ColdStarts #Latency #Microservices #Fastly #WasmComponentModel #Technology #Programming #Infrastructure #CloudComputing #FexingoBusiness #BusinessPodcast

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In this episode, Lucas and Luna dive into the origin story of Elixir—a language born from José Valim's frustration with Ruby's concurrency limits. They unpack how Elixir's actor model, built on the Erlang VM, powers fault-tolerant systems like Discord's 5 million concurrent voice users. The hosts walk through real-world challenges: how Elixir's OTP (Open Telecom Platform) allows hot code swapping with zero downtime, why the Phoenix framework's Channels handle millions of WebSocket connections, and how companies like Pinterest and Toyota use Elixir for mission-critical infrastructure. They also discuss the language's growing ecosystem, including Nx for numerical computing and LiveView for real-time UIs without JavaScript fatigue. No hype—just a concrete look at a language that quietly powers modern backend systems.

#Elixir #JoséValim #PhoenixFramework #BEAM #ErlangVM #ActorModel #Concurrency #FaultTolerance #OTP #LiveView #Nx #Discord #Pinterest #Toyota #RealTimeSystems #Technology #FexingoBusiness #BusinessPodcast

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In this episode of The Programming Languages Podcast, Lucas and Luna explore Carbon, the experimental language from Google designed as a successor to C++. They unpack why Carbon was created, how it aims to fix C++'s legacy pain points without breaking existing codebases, and the current state of its open-source development in 2026. The conversation contrasts Carbon with Rust's memory-safety approach and examines whether the language can achieve its goal of gradual adoption at scale. Specific examples include Carbon's generic programming model, its interoperability with C++, and the timeline for a production-ready 0.1 release. The episode also touches on the broader trend of languages trying to modernize systems programming without a rewrite-everything mandate.

#CarbonLanguage #Google #CPlusPlus #SystemsProgramming #ProgrammingLanguages #Rust #OpenSource #MemorySafety #Generics #Interop #Technology #FexingoBusiness #BusinessPodcast #SoftwareEngineering #Compilers #LanguageDesign #CPlusPlusSuccessor #TechTrends

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Episode 13 of The Programming Languages Podcast dives into Lua, the lightweight scripting language that quietly powers everything from World of Warcraft addons to Redis scripts and embedded IoT devices. Lucas explains how Lua's simple C API, small footprint, and fast interpreter made it the go-to embedded language, while Luna questions why it hasn't broken into broader application development. They walk through a real case: how a robotics startup replaced Python with Lua to cut memory usage by 80% on a microcontroller. By the end, you'll understand Lua's unique trade-offs and where it still wins today in 2026.

#Lua #EmbeddedProgramming #GameDevelopment #IoT #Robotics #ScriptingLanguage #Redis #WorldOfWarcraft #Microcontroller #Python #CAPI #Technology #FexingoBusiness #BusinessPodcast #ProgrammingLanguages #Lightweight #Performant #MemoryFootprint

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Episode 12 explores how AI coding assistants like GitHub Copilot, Amazon CodeWhisperer, and Google's Gemini for Code are changing the way developers write software. Lucas and Luna discuss real-world adoption rates, productivity gains, and the shift from writing code to reviewing and prompting. They dive into the economics of these tools, the debate over code quality, and what this means for junior developers entering the field. With 15 million developers now using AI assistants, the conversation tackles whether these tools are making us faster or just more dependent.

#AICoding #GitHubCopilot #CodeWhisperer #GeminiForCode #DeveloperProductivity #SoftwareEngineering #TechPodcast #Programming #AIinTech #CodeQuality #JuniorDevelopers #PromptEngineering #CodeReview #MachineLearning #DevTools #FexingoBusiness #BusinessPodcast #Technology

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