Technical blog by David Cruz Anayahttps://www.davthecoder.com/Sun, 21 Jun 2026 00:00:00 GMThttps://www.davthecoder.com/blog/understanding-inline-crossinline-noinline-reified-where-keywords-in-kotlin/https://www.davthecoder.com/blog/understanding-inline-crossinline-noinline-reified-where-keywords-in-kotlin/A practical guide to Kotlin's inline, crossinline, noinline, reified, and where keywords, with code examples showing when each one matters and how they fit together.Sun, 21 Jun 2026 00:00:00 GMTKotlinAndroidInline FunctionsGenericsPerformanceMobile Developmenthttps://www.davthecoder.com/blog/cpp-on-android-when-and-why-to-use-it/https://www.davthecoder.com/blog/cpp-on-android-when-and-why-to-use-it/A practical guide to deciding when C++ belongs in an Android app. Learn the real use cases (audio, games, heavy compute, cross-platform cores), the hidden costs of the NDK and JNI, and a simple decision framework so you reach for native code only when it actually pays off.Sat, 20 Jun 2026 12:00:00 GMTAndroidC++NDKJNINative DevelopmentKotlinPerformancehttps://www.davthecoder.com/blog/how-impostor-syndrome-becomes-the-pike-effect-for-software-developers/https://www.davthecoder.com/blog/how-impostor-syndrome-becomes-the-pike-effect-for-software-developers/After a redundancy or stalled senior-level job hunt, repeated rejections turn impostor reading into learned helplessness. The chain, the science, and the climb out for software developers.Sun, 17 May 2026 17:49:26 GMTpsychologysoftware-developmentcareermental-healthimpostor-syndromelearned-helplessnessredundancyjob-searchhttps://www.davthecoder.com/blog/introducing-klarinet-a-low-latency-audio-sdk-for-kotlin-multiplatform/https://www.davthecoder.com/blog/introducing-klarinet-a-low-latency-audio-sdk-for-kotlin-multiplatform/Introducing Klarinet, an open-source Kotlin Multiplatform audio SDK that provides low-latency playback, recording, 16 built-in effects, and file I/O across Android and Apple platforms with a single API.Thu, 09 Apr 2026 23:00:46 GMTKotlin MultiplatformKMPAndroidiOSAudioOboeOpen SourceCompose MultiplatformSDKhttps://www.davthecoder.com/blog/why-i-built-kmp-saas-kit-stop-rebuilding-the-same-mobile-infrastructure/https://www.davthecoder.com/blog/why-i-built-kmp-saas-kit-stop-rebuilding-the-same-mobile-infrastructure/Every SaaS mobile app needs auth, onboarding, paywalls, and settings. I got tired of building them from scratch every time. So I built a production-ready Kotlin Multiplatform starter kit that ships Android and iOS apps in days, not months.Tue, 07 Apr 2026 21:02:22 GMTKotlinKMPAndroidiOSSaaSMobile DevelopmentCompose MultiplatformSupabaseClean ArchitectureOpen Sourcehttps://www.davthecoder.com/blog/modern-cpp-for-android-audio-low-latency-guide/https://www.davthecoder.com/blog/modern-cpp-for-android-audio-low-latency-guide/Learn how modern C++ features like constexpr, std::atomic, std::span, and RAII patterns work together with Google Oboe library to build real-time, low-latency audio apps on Android.Tue, 03 Mar 2026 16:05:51 GMTAndroidC++AudioNDKOboeLow LatencyReal-Timehttps://www.davthecoder.com/blog/the-unified-codebase-a-comprehensive-blueprint-for-kotlin-multiplatform-clean-architecture/https://www.davthecoder.com/blog/the-unified-codebase-a-comprehensive-blueprint-for-kotlin-multiplatform-clean-architecture/Master the art of building production-grade Kotlin Multiplatform applications with shared business logic across Android, iOS, and Next.js while maintaining native UI fidelity on each platformMon, 22 Dec 2025 00:00:00 GMTAndroidKotlinKMPiOSNext.jsClean ArchitectureMobile Developmenthttps://www.davthecoder.com/blog/understanding-job-types-in-kotlin-coroutines/https://www.davthecoder.com/blog/understanding-job-types-in-kotlin-coroutines/Master the different Job types in Kotlin Coroutines and learn when to use Job, SupervisorJob, CompletableJob, and NonCancellable for building robust asynchronous applicationsFri, 05 Dec 2025 00:00:00 GMTAndroidKotlinCoroutinesMobile DevelopmentConcurrencyhttps://www.davthecoder.com/blog/lessons-learned-building-paglipat-kmp-ktor-supabase-nextjs/https://www.davthecoder.com/blog/lessons-learned-building-paglipat-kmp-ktor-supabase-nextjs/An Android developer's journey building a travel platform with Kotlin Multiplatform for shared business logic, Ktor for backend APIs, Supabase for auth/data, and Next.js for web including why Compose Multiplatform for Web was quickly discardedMon, 01 Dec 2025 00:00:00 GMTKotlinKMPKtorSupabaseNext.jsAndroidWeb DevelopmentCross-Platformhttps://www.davthecoder.com/blog/building-high-performance-ios-financial-charts-wit/https://www.davthecoder.com/blog/building-high-performance-ios-financial-charts-wit/How combining Rust's computational power with SwiftUI's elegance creates a blazing-fast financial charting appTue, 14 Oct 2025 00:00:00 GMTAndroidMobile DevelopmentSwiftiOSRusthttps://www.davthecoder.com/blog/building-a-high-performance-financial-charting-app/https://www.davthecoder.com/blog/building-a-high-performance-financial-charting-app/Real-world case study: Achieving 6–80x speedups on technical indicators with Rust native codeSun, 05 Oct 2025 00:00:00 GMTAndroidMobile DevelopmentKotlinRustPerformancehttps://www.davthecoder.com/blog/how-to-use-c-code-in-to-your-iostvos-xcode-project/https://www.davthecoder.com/blog/how-to-use-c-code-in-to-your-iostvos-xcode-project/A long time ago, I was asked to create some C++ code for specific functionality intended for use in both Android and iOS. I won't delve…Tue, 16 Sep 2025 00:00:00 GMTAndroidMobile DevelopmentSwiftiOSC++https://www.davthecoder.com/blog/why-senior-developers-fail-technical-interviews-an/https://www.davthecoder.com/blog/why-senior-developers-fail-technical-interviews-an/Picture this: a 10-year veteran engineer, respected by peers, known for shipping complex systems… who suddenly tanks a technical interview.Fri, 12 Sep 2025 00:00:00 GMTRustPerformanceAlgorithmsInterview PrepCareerhttps://www.davthecoder.com/blog/solving-leetcodes-add-two-numbers-problem-in-kotli/https://www.davthecoder.com/blog/solving-leetcodes-add-two-numbers-problem-in-kotli/The "Add Two Numbers" problem on LeetCode is a classic linked list manipulation problem that comes up a lot in job interviews. This problem…Thu, 11 Sep 2025 00:00:00 GMTKotlinAlgorithmsInterview PrepCareerhttps://www.davthecoder.com/blog/leetcode-146-how-to-solve-the-lru-cache-problem-in/https://www.davthecoder.com/blog/leetcode-146-how-to-solve-the-lru-cache-problem-in/This problem is considered a Medium difficulty level.Tue, 26 Aug 2025 00:00:00 GMTKotlinAlgorithmsInterview PrepCareerArchitecturehttps://www.davthecoder.com/blog/kmp-for-appletv/https://www.davthecoder.com/blog/kmp-for-appletv/In the ever-changing world of software development, Kotlin Multiplatform (KMP) has emerged as a powerful tool for creating cross-platform…Sat, 13 Jul 2024 00:00:00 GMTAndroidMobile DevelopmentKotlinKotlin MultiplatformCross-Platformhttps://www.davthecoder.com/blog/the-solid-principles-dartified/https://www.davthecoder.com/blog/the-solid-principles-dartified/Hey, fellow devs! Are you interviewing for a Flutter developer? Dart? and/or perhaps are on the brink of embarking on a new Flutter project…Sat, 21 Oct 2023 00:00:00 GMTFlutterDartCareerInterview PrepArchitecturehttps://www.davthecoder.com/blog/kotlin-interview-questions-part-1/https://www.davthecoder.com/blog/kotlin-interview-questions-part-1/If you are reading these lines is because you already know Kotlin and you are already or are expecting to face an interview in this field…Sat, 26 Nov 2022 00:00:00 GMTAndroidMobile DevelopmentKotlinCareerInterview Prephttps://www.davthecoder.com/blog/5-myths-about-a-software-developer-job-you-should-/https://www.davthecoder.com/blog/5-myths-about-a-software-developer-job-you-should-/In 2014 I had the huge privilege of starting my career in software development as a Junior Game Developer coming from a ZERO commercial…Sun, 23 Jan 2022 00:00:00 GMTAndroidMobile DevelopmentKotlinSwiftiOShttps://www.davthecoder.com/blog/from-gradle-to-gradlekts-the-definitive-groovy-to-/https://www.davthecoder.com/blog/from-gradle-to-gradlekts-the-definitive-groovy-to-/files with .kts extension are not new, but at some point in your Kotlin and/or Android development career you are likely to be in need of…Sat, 27 Nov 2021 00:00:00 GMTAndroidMobile DevelopmentKotlinRustPerformancehttps://www.davthecoder.com/blog/constraintlayout-loves-jetpack-compose/https://www.davthecoder.com/blog/constraintlayout-loves-jetpack-compose/For the last few years, ConstraintLayout was an effective way to create complex UI for our Android applications. With Constraint Layout you…Sun, 03 Oct 2021 00:00:00 GMTAndroidMobile DevelopmentKotlinBuild ToolsJetpack Composehttps://www.davthecoder.com/blog/android-introduction-to-picture-in-picture-mode-th/https://www.davthecoder.com/blog/android-introduction-to-picture-in-picture-mode-th/With the release of Android Oreo (API 26) it include one feature, on my understanding, overshadowed with all that limitations, new…Sun, 15 Nov 2020 00:00:00 GMTAndroidMobile Developmenthttps://www.davthecoder.com/blog/android-intentservice-or-jobscheduler-use-jobinten/https://www.davthecoder.com/blog/android-intentservice-or-jobscheduler-use-jobinten/On Android from the API level 3, when we run long background operation we did use IntentService allowing us to run this heavy operations…Sat, 14 Nov 2020 00:00:00 GMTAndroidMobile DevelopmentKotlin