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In this episode of The Programming Languages Podcast, Lucas and Luna explore why Julia is emerging as the go-to language for scientific computing and data-intensive research in 2026. They dive into a specific case: how researchers at the Allen Institute for Brain Science replaced a decade-old Python and MATLAB pipeline with Julia, cutting simulation runtimes from 72 hours to 9 hours. The conversation covers Julia's just-in-time compilation, multiple dispatch, and growing ecosystem for GPU and distributed computing. Lucas and Luna also discuss why Julia hasn't yet crossed into mainstream web or application development, and what that means for its long-term adoption. If you're a Python user curious about faster alternatives for math-heavy workloads, or a Rust developer wondering where Julia fits in the systems-language landscape, this episode gives you concrete benchmarks, real-world adoption numbers, and honest trade-offs. No hype, just the numbers and the story behind them.#JuliaLang #ScientificComputing #DataScience #AllenInstitute #MultipleDispatch #JITCompilation #GPUComputing #PythonAlternatives #MATLAB #HighPerformanceComputing #Technology #TechPodcast #ProgrammingLanguages #OpenSource #NumericalComputing #FexingoBusiness #BusinessPodcast #CodeCraftKeep every episode free: buymeacoffee.com/fexingo
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Episode 120 of The Programming Languages Podcast explores why Go, originally a niche language for concurrent systems, has become the default choice for cloud-native infrastructure. Lucas and Luna break down how Go's goroutines, fast compile times, and opinionated simplicity powered tools like Docker, Kubernetes, and Terraform. They examine specific metrics: how Go's startup time and memory footprint compare to Java and Python in serverless contexts, and why major cloud providers now ship SDKs in Go first. The episode also touches on Go's surprising strengths in CLI tooling and microservices, the role of Google's internal usage, and where Go still falls short compared to Rust or C++. If today's conversation gave you something usable, the show stays ad-free thanks to listeners at buy me a coffee dot com slash fexingo.#GoLanguage #CloudNative #Docker #Kubernetes #Terraform #Microservices #Serverless #Infrastructure #Tech #ProgrammingLanguages #Fexingo #BusinessPodcast #Technology #Goroutines #Concurrency #Google #CLI #RustVsGoKeep every episode free: buymeacoffee.com/fexingo
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In Episode 119 of The Programming Languages Podcast, Lucas and Luna explore why Elixir is becoming the go-to language for real-time, scalable applications in 2026. They dive into its origins on the Erlang Virtual Machine (BEAM), how its actor-model concurrency solves modern problems like WebSocket-heavy apps and IoT backends, and a concrete case: how the ride-sharing platform Flit (a European competitor) rebuilt its dispatch system to handle 10x traffic spikes without downtime. They also discuss why companies like Discord and Pinterest have adopted Elixir for critical infrastructure. With Phoenix LiveView, Elixir is also disrupting frontend development by eliminating the need for a separate JavaScript framework in certain use cases. Lucas and Luna break down the trade-offs, the learning curve, and where Elixir fits in the 2026 landscape. Plus, a brief note on how listener support keeps the podcast ad-free.#Elixir #ProgrammingLanguages #RealTimeSystems #BEAM #PhoenixFramework #LiveView #Concurrency #TechPodcast #SoftwareEngineering #Flit #Discord #Pinterest #IoT #Scalability #WebDevelopment #Technology #FexingoBusiness #BusinessPodcastKeep every episode free: buymeacoffee.com/fexingo
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Episode 118 explores the surprising staying power of COBOL, the 1960s programming language that still processes trillions of dollars in daily transactions. Lucas and Luna dive into the SSA's COBOL-based benefits system, the shortage of skilled developers, and why modern languages like Java haven't replaced it. They also discuss IBM's latest COBOL compiler update and how the language is quietly evolving. Plus, a candid moment about keeping the show ad-free. If you want a concrete example of legacy tech that refuses to die, this one's for you.#COBOL #LegacySystems #Mainframe #IBM #SocialSecurity #SSA #BankingTech #FinancialSystems #ProgrammingLanguages #TechHistory #SoftwareEngineering #GovernmentTech #Modernization #Java #Linux #FexingoBusiness #BusinessPodcast #TechnologyKeep every episode free: buymeacoffee.com/fexingo
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In this episode of The Programming Languages Podcast with Fexingo, Lucas and Luna explore why C++ remains a critical language in 2026 despite the rise of Rust, Zig, and other modern systems languages. They focus on the specific case of the Bloomberg Terminal, where C++ handles millisecond-latency data feeds that serve half a million financial professionals daily. Lucas breaks down how Bloomberg's proprietary C++ libraries, like the Bloomberg API (BLPAPI), manage 4.5 million market data updates per second across its infrastructure, and why rewriting that code in a memory-safe language would cost an estimated $2 billion and introduce unacceptable latency risk. Luna pushes back on Rust's memory safety guarantees, and Lucas explains C++'s evolution with C++20 and C++23 standards that add safer patterns like contracts and spans. They also touch on the vast existing C++ codebase — over 100 million lines at Google alone — and how the language's performance predictability keeps it entrenched in high-frequency trading, game engines, and embedded systems. The episode concludes with a forward-looking question about whether C++ can maintain relevance as AI and quantum computing demand different abstractions.#CPlusPlus #Rust #SystemsProgramming #BloombergTerminal #HighFrequencyTrading #CPlusPlus20 #CPlusPlus23 #MemorySafety #LegacyCode #PerformanceEngineering #GameEngines #EmbeddedSystems #Technology #SoftwareEngineering #ProgrammingLanguages #FexingoBusiness #BusinessPodcast #TechPodcastKeep every episode free: buymeacoffee.com/fexingo
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Lucas and Luna explore why Ada, a language from the 1980s, remains the gold standard for safety-critical systems in aviation, rail, and medical devices. They dive into how Ada's strong typing, contract-based programming, and runtime checks prevent errors that could cost lives. The episode uses the example of the Boeing 777's fly-by-wire system, which runs Ada code, and contrasts it with modern languages like Rust and C. They also discuss how Ada's latest standard, Ada 2022, adds features like 'parallel' loops and better interoperability with C, keeping it relevant. Expect concrete comparisons, specific numbers on defect rates, and a clear takeaway on why some industries stick with proven tools.#Ada #SafetyCriticalSystems #Aviation #Boeing777 #FlyByWire #StrongTyping #ContractBasedProgramming #Rust #CProgramming #FormalVerification #DO178C #Avionics #MedicalDevices #RailSignaling #Technology #FexingoBusiness #BusinessPodcast #ProgrammingLanguagesKeep every episode free: buymeacoffee.com/fexingo
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Swift, Apple's programming language launched in 2014, has quietly become a contender for server-side, cloud, and even cross-platform development. In this episode, Lucas and Luna trace Swift's journey from a niche iOS tool to a language with first-class Linux support, a growing package ecosystem, and an open-source roadmap that includes Windows and embedded targets. They discuss the Swift Server Work Group's role in driving adoption, compare its concurrency model with Go's goroutines, and examine real-world deployments at companies like Spotify and Telegram that use Swift for backend services. The conversation also explores Swift's potential in the AI and machine learning space thanks to the Swift for TensorFlow project. Specific numbers: over 40,000 packages in the Swift Package Index, a 3x improvement in compile times since Swift 5.9, and adoption in 12% of new server-side projects according to a 2025 JetBrains survey. If you are a developer curious about languages that combine safety with performance, this episode offers a clear-eyed look at whether Swift is ready for prime time outside the Apple walled garden.#Swift #Apple #ProgrammingLanguages #ServerSideSwift #OpenSource #SwiftPackageIndex #SwiftConcurrency #CloudComputing #BackendDevelopment #SwiftForTensorFlow #AIML #Spotify #Telegram #JetBrainsSurvey #Technology #FexingoBusiness #BusinessPodcast #LucasAndLunaKeep every episode free: buymeacoffee.com/fexingo
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In this episode of The Programming Languages Podcast, Lucas and Luna explore why Dart, not just Flutter, is becoming a strategic language for Google and beyond. They dive into Dart's origins as a JavaScript replacement, its unique ahead-of-time and just-in-time compilation, and how it powers everything from Google Pay to upcoming embedded systems. With 2026 seeing Dart expand into server-side and IoT, the hosts discuss whether Dart can finally break out of Flutter's shadow and become a language for the full stack. Specific examples include Dart's use in Google Ads and its growing community on pub.dev. The conversation also touches on the economics of ad-free podcasting and how listener support keeps the show independent.#Dart #Flutter #Google #CrossPlatform #MobileDevelopment #ProgrammingLanguages #FexingoBusiness #BusinessPodcast #Technology #SoftwareDevelopment #AOTCompilation #JITCompilation #GooglePay #IoT #ServerSideDart #PubDev #LanguageDesign #AppDevelopmentKeep every episode free: buymeacoffee.com/fexingo
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Episode 113 of The Programming Languages Podcast explores OCaml's quiet dominance in high-frequency trading and financial systems. Lucas and Luna break down why firms like Jane Street choose OCaml for its type safety, performance, and expressiveness — and how its functional programming model prevents costly bugs in multi-million-dollar trading pipelines. They discuss the language's unique module system, its growing ecosystem for quantitative finance, and why its reputation as 'niche' might be misleading. If you think financial coding is all C++ and Python, this episode will change your mind.#OCaml #FunctionalProgramming #FinancialTrading #JaneStreet #HighFrequencyTrading #TypeSafety #QuantitativeFinance #ProgrammingLanguages #Technology #FinanceTech #SoftwareEngineering #TradingSystems #ModuleSystem #ML #CompiledLanguages #FexingoBusiness #BusinessPodcast #TechPodcastKeep every episode free: buymeacoffee.com/fexingo
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Episode 112 of The Programming Languages Podcast dives into Rust's dominance in 2026's memory safety landscape. Lucas and Luna break down how the U.S. government's push for memory-safe languages and major industry shifts have cemented Rust as the go-to for systems programming. They discuss the White House Office of the National Cyber Director's 2024 report, Microsoft's 70% memory safety bug findings, and the Android team's adoption of Rust. The hosts explore why Rust's ownership model is revolutionary, how it compares to C and C++, and what challenges remain in adoption. A must-listen for developers wondering if Rust is worth the learning curve.#Rust #MemorySafety #SystemsProgramming #CProgramming #CPlusPlus #CyberSecurity #WhiteHouseReport #Microsoft #Android #LinuxKernel #ProgrammingLanguages #Technology #FexingoBusiness #BusinessPodcast #SoftwareDevelopment #Compiler #OwnershipModel #SafeCodeKeep every episode free: buymeacoffee.com/fexingo
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Lucas and Luna dive into Svelte's rising developer satisfaction scores and its unique compile-time approach that eliminates the virtual DOM. They examine how Svelte 5's runes syntax is reshaping reactive state management, and why companies like Apple, Spotify, and The New York Times have adopted it for certain projects. With specific benchmarks showing 2x faster initial render times compared to React, this episode explores whether Svelte's leaner architecture is the key to solving frontend bloat. The hosts also discuss the trade-offs: a smaller ecosystem, fewer job listings, and the learning curve for traditional React developers. Ultimately, they look at what Svelte's growth says about the industry's hunger for simplicity and performance in 2026.#Svelte #JavaScript #FrontendFrameworks #React #CompileTime #Runes #RichHarris #WebPerformance #DeveloperExperience #VirtualDOM #Svelte5 #Apple #Spotify #NYTimes #Technology #Programming #FexingoBusiness #BusinessPodcastKeep every episode free: buymeacoffee.com/fexingo
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Lucas and Luna dive into TypeScript's explosive growth in 2026. With over 60% of JavaScript developers now using TypeScript in production, and major frameworks like React, Vue, and Svelte shipping first-class TypeScript support, the language has become the de facto standard for large-scale web development. They explore why TypeScript's gradual typing, rich IDE support, and ecosystem maturity have made it a must-learn for front-end and back-end developers alike, and discuss the controversial rise of 'TypeScript-Only' frameworks like Deno and Bun. This episode covers the numbers, the tooling revolution, and what it means for developers sticking with plain JavaScript.#TypeScript #JavaScript #WebDevelopment #ProgrammingLanguages #Frontend #Deno #Bun #React #Vue #Svelte #TypeSafety #GradualTyping #ESBuild #Turbopack #Monorepo #Technology #FexingoBusiness #BusinessPodcastKeep every episode free: buymeacoffee.com/fexingo
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This episode explores why Lua remains a dominant scripting language in gaming and embedded systems in 2026. Lucas and Luna dive into Lua's lightweight design, its role in game engines like Roblox and World of Warcraft, and its surprising use in IoT devices. They discuss LuaJIT's performance advantages, the trade-offs between Lua and Python for embedded scripting, and why Lua's simplicity makes it a favorite for modding communities. The conversation also touches on Lua's adoption in Redis and Nginx for extending functionality. A concrete example: how a small team at a smart-home startup used Lua to script device behavior with minimal memory footprint. No fluff, just the story of a language that quietly runs a huge chunk of the digital world.#Lua #Gaming #EmbeddedSystems #LuaJIT #Roblox #WoW #IoT #Redis #Nginx #Scripting #Programming #Technology #SoftwareDevelopment #GameDev #Modding #SmartHome #FexingoBusiness #BusinessPodcastKeep every episode free: buymeacoffee.com/fexingo
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Episode 108 of The Programming Languages Podcast dives into Haskell's role in the financial industry. Lucas and Luna explore how banks and trading firms use Haskell for high-stakes systems that demand correctness and reliability. They discuss Jane Street's trading infrastructure, the use of Haskell in smart contracts for blockchain, and why functional programming reduces bugs in critical code. The episode also covers the practical challenges of adopting Haskell, including hiring and ecosystem maturity. With real-world examples and concrete numbers, this is a look at a language that thrives where failure is not an option.#Haskell #FunctionalProgramming #FinancialSystems #JaneStreet #SmartContracts #Fintech #ProgrammingLanguages #Technology #SoftwareDevelopment #Programming #Developers #Finance #Trading #Blockchain #FunctionalProgrammingLanguages #FexingoBusiness #BusinessPodcast #TechPodcastKeep every episode free: buymeacoffee.com/fexingo
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When we think of modern programming, Fortran doesn't come to mind. But in 2026, Fortran remains a cornerstone of high-performance computing, especially in weather simulation, physics modeling, and scientific research. Lucas and Luna dive into why Fortran persists: its unmatched array syntax, decades of optimized libraries, and the sheer cost of rewriting validated code. They discuss real examples like the ECMWF weather model and the U.S. National Weather Service, where Fortran code from the 1970s still runs in production. They also cover modernization efforts like Fortran 2018 and Coarray Fortran for parallel computing. If you think Fortran is dead, this episode will change your mind.#Fortran #HighPerformanceComputing #ProgrammingLanguages #Technology #ScientificComputing #WeatherSimulation #ECMWF #NationalWeatherService #LegacyCode #Fortran2018 #CoarrayFortran #NumericalWeatherPrediction #HPC #SoftwareEngineering #Coding #FexingoBusiness #BusinessPodcast #TechPodcastKeep every episode free: buymeacoffee.com/fexingo
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Episode 106 explores how Erlang and the OTP framework continue to underpin the world's most reliable telecommunication systems. Lucas and Luna break down the actor model, hot code swapping, and the 'let it crash' philosophy, using Ericsson's AXD301 as a concrete case study. They discuss why modern cloud-native platforms like WhatsApp still lean on Erlang's decades-old design for fault tolerance, and what the rise of Elixir means for the ecosystem. A deep dive into the language that delivers nine nines of reliability.#Erlang #OTP #Telecom #Ericsson #WhatsApp #ActorModel #FaultTolerance #HotCodeSwapping #LetItCrash #Concurrency #Elixir #BEAM #DistributedSystems #Reliability #NineNines #Technology #FexingoBusiness #BusinessPodcastKeep every episode free: buymeacoffee.com/fexingo
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Most developers have heard of Rust. Fewer have heard of Zig. Lucas and Luna explore why Zig—a small, unassuming systems language without a garbage collector or a borrow checker—is quietly gaining traction in performance-critical niches like game engines, embedded firmware, and build tooling. They walk through a concrete example: a game studio that dropped its custom C++ build system for Zig's comptime and cross-compilation features, cutting compile times by 40 percent and halving their CI pipeline. Lucas explains how Zig's manual memory management model appeals to developers who find Rust's borrow checker too restrictive yet want more safety than raw C. Luna pushes back on Zig's lack of a mature standard library and package manager. The episode closes with the question: will Zig remain a specialist tool or evolve into a broader contender?#Zig #SystemsProgramming #Coding #ProgrammingLanguages #Technology #SoftwareDevelopment #GameDev #EmbeddedSystems #Compilers #Performance #MemoryManagement #Rust #CPlusPlus #BuildSystems #Comptime #CrossCompilation #FexingoBusiness #BusinessPodcastKeep every episode free: buymeacoffee.com/fexingo
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SQLite is everywhere—in your phone, browser, and car—yet it rarely gets the spotlight. In this episode of The Programming Languages Podcast, Lucas and Luna explore why SQLite's zero-configuration, serverless design makes it the world's most deployed database engine. They dive into its unique architecture: a single-file database that uses B-tree storage and a carefully designed locking protocol to handle concurrency without a separate server process. Lucas explains how SQLite's atomic commit and rollback work via a journal file, and why its decision to eschew client-server networking makes it incredibly reliable for embedded systems. They also discuss the surprising scale—SQLite can handle terabytes of data and hundreds of concurrent readers—and its role in mobile apps, aviation software, and even space probes like NASA's Mars rovers. The episode addresses common criticisms, like limited write concurrency, and clarifies where SQLite shines versus PostgreSQL or MySQL. Listeners will walk away understanding why SQLite is the unsung hero of modern data management.#SQLite #EmbeddedDatabases #DatabaseInternals #BTree #ZeroConfiguration #Serverless #MobileDev #AviationSoftware #MarsRover #PostgreSQL #MySQL #Concurrency #ACID #AtomicCommit #StorageEngine #Technology #FexingoBusiness #BusinessPodcastKeep every episode free: buymeacoffee.com/fexingo
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Lucas and Luna break down the SAFE note—the Simple Agreement for Future Equity—and why it has become the go-to instrument for early-stage startup funding in 2026. They walk through a real case: a $2.5 million seed round for a fintech startup using a SAFE with a $15 million valuation cap and no discount. Lucas explains the mechanics, the recent SEC rule changes that made SAFEs more standardized, and how they compare to convertible notes. Luna probes the risks for founders and the common negotiation pitfalls around valuation caps and most-favored-nation clauses. They also touch on how the SAFE's simplicity reduced legal costs for seed rounds from $50,000 to under $10,000. By the end, listeners will understand exactly how a SAFE works, when to use one, and what to watch out for.#SAFE #StartupFunding #SeedRound #VentureCapital #ConvertibleNote #ValuationCap #SEC #Fintech #Founder #Investor #Equity #LegalTech #Business #Finance #FexingoBusiness #BusinessPodcast #StartupLaw #EarlyStageKeep every episode free: buymeacoffee.com/fexingo
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Lucas and Luna dive into WebAssembly (Wasm) as it hits a critical inflection point in mid-2026. They explore how Wasm is moving beyond the browser into server-side runtimes, edge computing, and plugin systems—with concrete examples like Figma's use of Wasm for Photoshop-level performance in the browser and Docker's integration of Wasm modules. They break down the 2025 Wasm GC spec adoption, the rise of the Component Model, and why companies like Fastly and Cloudflare are betting on Wasm for serverless. The conversation also touches on the 'Wasm vs. container' debate, and whether Wasm can dethrone JavaScript as the universal runtime. No hype—just the numbers and the real use cases.#WebAssembly #Wasm #BrowserRuntime #EdgeComputing #Serverless #Figma #Docker #Fastly #Cloudflare #ComponentModel #WasmGC #Technology #SoftwareDevelopment #Runtime #PluginSystems #ContainerAlternatives #FexingoBusiness #BusinessPodcastKeep every episode free: buymeacoffee.com/fexingo
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