Writing on software, reading, gaming, and everyday discoveries.https://santi020k.com/https://santi020k.com/blog/open-sourcing-santi020k-auth-cloudflare/https://santi020k.com/blog/open-sourcing-santi020k-auth-cloudflare/Why I made @santi020k/auth-cloudflare public, how it reuses email-code and passkey policy across Cloudflare applications, and where the shared boundary deliberately ends.Fri, 25 Sep 2026 13:00:00 GMTSantiago Molinaauthenticationcloudflare-workerspasskeyssecurityopen-sourceSantiago Molinahttps://santi020k.com/blog/building-santi020k-developer-tool-ecosystem/https://santi020k.com/blog/building-santi020k-developer-tool-ecosystem/How Lumen, ESLint Config Basic, Quality, Astro Doctor, Commitprompt, Dep Beacon, OG, Theme, and Auth form one practical system for my projects.Thu, 24 Sep 2026 22:45:00 GMTSantiago Molinadeveloper-experiencedeveloper-toolsopen-sourceautomationdesign-systemsSantiago Molinahttps://santi020k.com/blog/what-changed-when-i-started-writing-architecture-notes-every-month/https://santi020k.com/blog/what-changed-when-i-started-writing-architecture-notes-every-month/A year of monthly architecture notes changed how I review systems, how I catch drift, and how I explain decisions to the people who inherit them.Fri, 11 Sep 2026 15:00:00 GMTSantiago Molinaarchitecturedocumentationsoftware-designengineering-cultureSantiago Molinahttps://santi020k.com/blog/why-i-moved-to-zed/https://santi020k.com/blog/why-i-moved-to-zed/Why Zed became my editor of choice: responsive work across multiple projects, flexible AI integrations, and Dep Beacon now available as a Zed extension.Mon, 07 Sep 2026 00:00:00 GMTSantiago Molinazeddeveloper-experienceproductivityaideveloper-toolsSantiago Molinahttps://santi020k.com/blog/run-repo-on-mac-with-silo-dxmt/https://santi020k.com/blog/run-repo-on-mac-with-silo-dxmt/A tested Apple silicon setup for running R.E.P.O. through Silo, Wine, and DXMT, including the DirectX graphics failure and its exact fix.Fri, 04 Sep 2026 18:56:45 GMTSantiago Molinamacosapple-silicongamingwinedxmtSantiago Molinahttps://santi020k.com/blog/building-roadscore-offline-road-trip-game/https://santi020k.com/blog/building-roadscore-offline-road-trip-game/How I designed RoadScore around a co-pilot, an offline catalog, flexible trip sessions, and privacy boundaries that keep game data on the device.Fri, 04 Sep 2026 00:00:00 GMTSantiago Molinaroadscoreexporeact-nativeoffline-firstgame-developmentaccessibilitySantiago Molinahttps://santi020k.com/blog/flash-xteink-x4-international-firmware/https://santi020k.com/blog/flash-xteink-x4-international-firmware/A tested guide to replacing Chinese Xteink X4 firmware with the international release by using its microSD updater when USB flashing is unavailable.Thu, 03 Sep 2026 15:00:00 GMTSantiago Molinareadingxteinke-readerfirmwarehardwaretroubleshootingSantiago Molinahttps://santi020k.com/blog/deterministic-open-graph-images-without-design-lock-in/https://santi020k.com/blog/deterministic-open-graph-images-without-design-lock-in/Why I separated social-image generation mechanics from project-owned visuals, then built caching, safe cleanup, worker concurrency, and CI checks around that boundary.Sat, 22 Aug 2026 15:00:00 GMTSantiago Molinaopen-graphtypescriptnodejsdeveloper-experiencebuild-toolsSantiago Molinahttps://santi020k.com/blog/coolstead-safety-first-mac-cooling/https://santi020k.com/blog/coolstead-safety-first-mac-cooling/What it takes to design a native fan-control utility around bounded requests, invalid sensor data, reversible behavior, and macOS as the final safety layer.Fri, 21 Aug 2026 15:00:00 GMTSantiago Molinamacosswifthardwaresafety-engineeringnative-appsSantiago Molinahttps://santi020k.com/blog/one-quality-command-across-polyglot-repositories/https://santi020k.com/blog/one-quality-command-across-polyglot-repositories/How I built a native CLI that coordinates existing analyzers across Rust, Swift, Android, Kotlin, JavaScript, and Astro without flattening their ecosystem-specific strengths.Fri, 21 Aug 2026 15:00:00 GMTSantiago Molinarustcode-qualitydeveloper-experienceci-cdtoolingSantiago Molinahttps://santi020k.com/blog/between-contractions-sync-critical-path/https://santi020k.com/blog/between-contractions-sync-critical-path/How I designed optional cross-platform Partner Sync without making a contraction timer depend on the network, an account, or a central history database.Fri, 21 Aug 2026 07:00:00 GMTSantiago Molinadistributed-systemscloudflarewebsocketsswiftuiandroidlocal-firstSantiago Molinahttps://santi020k.com/blog/why-i-built-between-contractions/https://santi020k.com/blog/why-i-built-between-contractions/How waiting for Aarón became a calm, private contraction timer across the web, iOS, Android, watches, widgets, and partner devices.Thu, 20 Aug 2026 15:00:00 GMTSantiago Molinaproduct-engineeringswiftuiandroidastroprivacypersonal-projectsSantiago Molinahttps://santi020k.com/blog/astro-and-alpine-patterns-for-fast-content-heavy-sites/https://santi020k.com/blog/astro-and-alpine-patterns-for-fast-content-heavy-sites/The Astro and Alpine.js patterns that keep content-heavy sites fast without giving up the interactive details that make them feel polished.Fri, 14 Aug 2026 15:00:00 GMTSantiago MolinaastroalpineperformancefrontendjavascriptSantiago Molinahttps://santi020k.com/blog/postlens-private-on-device-content-studio/https://santi020k.com/blog/postlens-private-on-device-content-studio/Why PostLens keeps selection, scoring, enhancement, composition, and caption preparation on the iPhone while making optional generative handoffs explicit.Fri, 14 Aug 2026 15:00:00 GMTSantiago Molinaiosswiftuion-device-aiprivacyphotographySantiago Molinahttps://santi020k.com/blog/expanding-santi020k-theme-to-the-terminal/https://santi020k.com/blog/expanding-santi020k-theme-to-the-terminal/How a VS Code palette became a generated terminal system with six application formats, three Starship styles, managed shells, validation, and Homebrew releases.Wed, 15 Jul 2026 15:00:00 GMTSantiago Molinaterminaldesign-systemsdeveloper-experiencehomebrewopen-sourceSantiago Molinahttps://santi020k.com/blog/shipping-macos-tools-with-a-homebrew-tap/https://santi020k.com/blog/shipping-macos-tools-with-a-homebrew-tap/How I separated product code from distribution metadata and turned signed terminal releases into familiar Homebrew install and upgrade commands.Sun, 12 Jul 2026 15:00:00 GMTSantiago Molinahomebrewmacosrelease-engineeringdeveloper-experienceopen-sourceSantiago Molinahttps://santi020k.com/blog/designing-eslint-packages-teams-actually-adopt/https://santi020k.com/blog/designing-eslint-packages-teams-actually-adopt/What separates ESLint configurations that spread across a codebase from ones that get removed after the first sprint.Fri, 10 Jul 2026 15:00:00 GMTSantiago Molinaeslintcode-qualityjavascripttypescriptdeveloper-experienceSantiago Molinahttps://santi020k.com/blog/lumen-ui-one-system-three-frameworks/https://santi020k.com/blog/lumen-ui-one-system-three-frameworks/How I built 123 accessible primitives for Astro, React, and Web Components while sharing tokens and behavior without forcing one runtime model.Sat, 04 Jul 2026 15:00:00 GMTSantiago Molinadesign-systemsastroreactweb-componentsaccessibilitySantiago Molinahttps://santi020k.com/blog/dep-beacon-vscode-extension/https://santi020k.com/blog/dep-beacon-vscode-extension/Why I built Dep Beacon, a VS Code extension that keeps npm update paths, pnpm catalog context, and OSV security warnings inside manifests.Wed, 01 Jul 2026 15:00:00 GMTSantiago Molinavscodedeveloper-experiencedependenciessecurityopen-sourceSantiago Molinahttps://santi020k.com/blog/astro-doctor-announcement/https://santi020k.com/blog/astro-doctor-announcement/Why I built Astro Doctor: a CLI, ESLint plugin, editor extension, GitHub Action, and agent skill system for catching Astro anti-patterns early.Mon, 22 Jun 2026 00:00:00 GMTSantiago Molinaastrodeveloper-experienceperformanceaccessibilityopen-sourceSantiago Molinahttps://santi020k.com/blog/eslint-config-basic-version-2/https://santi020k.com/blog/eslint-config-basic-version-2/Explore @santi020k/eslint-config-basic v2 with ESLint 10, one-package setup, lazy framework support, monorepo tooling, lite mode, and CLI checks.Sat, 20 Jun 2026 15:00:00 GMTSantiago Molinaeslintjavascripttypescriptdeveloper-experienceopen-sourceSantiago Molinahttps://santi020k.com/blog/why-developer-experience-work-should-be-measured-like-product-work/https://santi020k.com/blog/why-developer-experience-work-should-be-measured-like-product-work/DX improvements that cannot be measured rarely survive long enough to compound. Treating them like product work changes that.Fri, 12 Jun 2026 15:00:00 GMTSantiago Molinadeveloper-experienceengineering-culturemetricsleadershipSantiago Molinahttps://santi020k.com/blog/building-aaronmgz-as-a-family-platform/https://santi020k.com/blog/building-aaronmgz-as-a-family-platform/How a nautical personal site became a shared family platform for messages, invitations, administration, and a long-lived digital home.Thu, 04 Jun 2026 15:00:00 GMTSantiago Molinaastronextjscloudflareproduct-architecturepersonal-projectsSantiago Molinahttps://santi020k.com/blog/playwright-accessibility-checks-that-teams-keep-running/https://santi020k.com/blog/playwright-accessibility-checks-that-teams-keep-running/How to add accessibility automation to your Playwright suite in a way that is fast enough to stay in the workflow and specific enough to actually catch problems.Fri, 15 May 2026 15:00:00 GMTSantiago Molinaaccessibilityplaywrighttestinge2edeveloper-experienceSantiago Molinahttps://santi020k.com/blog/muted-commands-make-ai-automation-faster-and-cheaper/https://santi020k.com/blog/muted-commands-make-ai-automation-faster-and-cheaper/AI agents rerun checks constantly. Quiet logs, compact reporters, and parallel verification reduce token waste without lowering the quality bar.Wed, 29 Apr 2026 15:00:00 GMTSantiago Molinaaiautomationdeveloper-experiencetestingci-cdSantiago Molinahttps://santi020k.com/blog/ai-coding-is-probabilistic-your-delivery-process-should-not-be/https://santi020k.com/blog/ai-coding-is-probabilistic-your-delivery-process-should-not-be/AI speeds up code changes, but ESLint, tests, snapshots, and end-to-end checks are what keep probabilistic output from turning into production risk.Wed, 15 Apr 2026 15:30:00 GMTSantiago Molinaaieslinttestinge2edeveloper-experienceSantiago Molinahttps://santi020k.com/blog/why-i-moved-my-eslint-library-to-eslint-config-basic/https://santi020k.com/blog/why-i-moved-my-eslint-library-to-eslint-config-basic/Why I deprecated @santi020k/eslint-config-santi020k in favor of a composable monorepo with clearer packages, better docs, and stronger DX.Wed, 01 Apr 2026 18:30:00 GMTSantiago Molinaeslintflat-configdeveloper-experienceopen-sourcetypescriptSantiago Molinahttps://santi020k.com/blog/avoid-inverted-conditionals-when-clarity-matters/https://santi020k.com/blog/avoid-inverted-conditionals-when-clarity-matters/Positive conditionals usually reduce mental load and make branches easier to scan, review, and change.Mon, 13 Oct 2025 12:56:00 GMTSantiago Molinareadabilityjavascriptfrontendclean-codeSantiago Molinahttps://santi020k.com/blog/a-release-process-that-reduces-drama/https://santi020k.com/blog/a-release-process-that-reduces-drama/A release process should lower stress, tighten feedback loops, and make production changes easier to trust.Sun, 05 Oct 2025 18:44:00 GMTSantiago Molinarelease-managementgitqadeliverySantiago Molinahttps://santi020k.com/blog/code-standards-that-scale-with-a-team/https://santi020k.com/blog/code-standards-that-scale-with-a-team/The version of coding standards I would actually hand to a growing frontend team today.Sun, 14 Sep 2025 14:18:00 GMTSantiago Molinaengineering-standardstypescriptfrontendteam-processSantiago Molinahttps://santi020k.com/blog/responsive-design-standards-that-scale-across-components/https://santi020k.com/blog/responsive-design-standards-that-scale-across-components/Responsive work gets easier when breakpoints and layout decisions are treated like a shared system.Fri, 12 Sep 2025 16:40:00 GMTSantiago Molinaresponsive-designfrontenddesign-systemsui-engineeringSantiago Molinahttps://santi020k.com/blog/git-best-practices-for-calm-collaboration/https://santi020k.com/blog/git-best-practices-for-calm-collaboration/Simple commit and pull-request habits that reduce review friction and make collaboration calmer.Mon, 21 Jul 2025 13:10:00 GMTSantiago Molinagitpull-requestscollaborationdeveloper-experienceSantiago Molinahttps://santi020k.com/blog/write-better-review-feedback-with-conventional-comments/https://santi020k.com/blog/write-better-review-feedback-with-conventional-comments/A lightweight review language that makes feedback clearer, kinder, and easier to act on.Sat, 17 May 2025 17:34:00 GMTSantiago Molinacode-reviewengineering-culturecommunicationgitSantiago Molinahttps://santi020k.com/blog/avoid-magic-strings-in-typescript-and-javascript/https://santi020k.com/blog/avoid-magic-strings-in-typescript-and-javascript/Replace ad-hoc string literals with clearer domain language, stronger typing, and safer refactors.Sat, 29 Mar 2025 14:22:00 GMTSantiago Molinatypescriptjavascriptcode-qualityrefactoringSantiago Molinahttps://santi020k.com/blog/common-code-pitfalls-that-signal-maintenance-risk/https://santi020k.com/blog/common-code-pitfalls-that-signal-maintenance-risk/The code smells that usually predict rising maintenance cost before a team feels the full pain.Tue, 07 Jan 2025 15:08:00 GMTSantiago Molinacode-qualitymaintainabilityrefactoringsoftware-designSantiago Molinahttps://santi020k.com/blog/skin-in-the-game-for-software-teams/https://santi020k.com/blog/skin-in-the-game-for-software-teams/Why strong engineers care about product outcomes, users, and system health instead of stopping at ticket completion.Sun, 08 Dec 2024 16:12:00 GMTSantiago Molinaengineering-cultureleadershipproduct-thinkingsoftware-teamsSantiago Molinahttps://santi020k.com/blog/boosting-code-quality-and-efficiency-with-my-eslint-configuration-library/https://santi020k.com/blog/boosting-code-quality-and-efficiency-with-my-eslint-configuration-library/Reusable ESLint library for React, Next.js, and TypeScript projects. Enforces code quality with flat config support and simplifies the move from ESLint 8 to 9.Sat, 23 Nov 2024 19:27:02 GMTSantiago Molinareact-nativereacteslinttypescripteslint-configSantiago Molinahttps://santi020k.com/blog/migrate-eslint-8-or-less-to-eslint-9/https://santi020k.com/blog/migrate-eslint-8-or-less-to-eslint-9/A practical guide to moving from ESLint 8 to flat config in ESLint 9, with a cleaner setup for React, Next.js, and TypeScript projects.Sun, 19 May 2024 15:41:30 GMTSantiago MolinaeslinttypescriptreactnextjsmigrationSantiago Molinahttps://santi020k.com/blog/authentication-and-authorization-in-next-js-applications-with-supabase/https://santi020k.com/blog/authentication-and-authorization-in-next-js-applications-with-supabase/Build maintainable Next.js authentication with Supabase SSR, protected routes, session handling, and clear authorization patterns for production teams.Thu, 25 Apr 2024 18:20:00 GMTSantiago MolinasupabaseauthenticationauthorizationnextjstypescriptSantiago Molinahttps://santi020k.com/blog/continuous-integration-and-deployment-for-next-js-projects/https://santi020k.com/blog/continuous-integration-and-deployment-for-next-js-projects/Build a practical Next.js CI/CD pipeline with GitHub Actions that installs cleanly, runs linting and tests, verifies builds, and deploys trusted code.Thu, 18 Apr 2024 17:12:00 GMTSantiago Molinaci-cdgithub-actionsnextjsreactdeploymentSantiago Molinahttps://santi020k.com/blog/testing-react-components-with-vitest-and-react-testing-library/https://santi020k.com/blog/testing-react-components-with-vitest-and-react-testing-library/A practical setup for testing React components with Vitest and React Testing Library, focused on behavior, confidence, and maintainable frontend code.Thu, 11 Apr 2024 15:46:53 GMTSantiago Molinavitesttesting-libraryreacttypescriptnextjsSantiago Molinahttps://santi020k.com/blog/configuring-mongodb-with-homebrew-on-macos-converting-a-standalone-instance-to-a-replica-set/https://santi020k.com/blog/configuring-mongodb-with-homebrew-on-macos-converting-a-standalone-instance-to-a-replica-set/Convert a standalone MongoDB instance to a replica set on macOS using Homebrew. Covers mongod.conf changes, replication settings, and local verification steps.Fri, 05 Apr 2024 18:33:37 GMTSantiago MolinamongoconfigurationhomebrewmacSantiago Molinahttps://santi020k.com/blog/storybook-in-action-with-next-js-tailwind-and-typescript/https://santi020k.com/blog/storybook-in-action-with-next-js-tailwind-and-typescript/Set up Storybook in a Next.js project with Tailwind and TypeScript. Build isolated UI components, write stories, and improve design system collaboration.Fri, 29 Mar 2024 00:11:10 GMTSantiago MolinatypescripttailwindstorybookreactnextjsSantiago Molinahttps://santi020k.com/blog/development-workflow-with-husky-for-next-js-eslint-and-vitest-integration/https://santi020k.com/blog/development-workflow-with-husky-for-next-js-eslint-and-vitest-integration/A practical Husky setup for Next.js projects so linting, testing, and pre-push checks become part of the team workflow instead of a last-minute cleanup step.Thu, 21 Mar 2024 17:47:55 GMTSantiago Molinapre-commitvitesthuskyreactnextjsSantiago Molinahttps://santi020k.com/blog/building-the-best-next-js-typescript-standard-vitest-eslint-configuration/https://santi020k.com/blog/building-the-best-next-js-typescript-standard-vitest-eslint-configuration/Configure ESLint for Next.js with TypeScript and Vitest integration. Covers code quality rules, import conventions, and a scalable setup for React projects.Thu, 14 Mar 2024 18:01:55 GMTSantiago MolinaeslintvitesttypescriptstandardsreactSantiago Molinahttps://santi020k.com/blog/atomic-module-component-structure-for-react/https://santi020k.com/blog/atomic-module-component-structure-for-react/Structure React projects using Atomic Module Components — covering file layout, naming conventions, and scalability patterns for growing TypeScript codebases.Thu, 07 Mar 2024 22:05:53 GMTSantiago MolinadevelopmentreactnextjstypescriptSantiago Molina