<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<url>
<loc>https://blog.ybysn.org</loc>
<lastmod>2026-06-17T05:33:03.352Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/posts</loc>
<lastmod>2026-06-17T05:33:03.352Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial</loc>
<lastmod>2026-06-17T05:33:03.352Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/posts/3x-ui-setup-guide</loc>
<lastmod>2026-05-31T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/posts/claude-code-deepseek-setup-guide</loc>
<lastmod>2026-05-31T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/posts/cloudflare-setup-guide</loc>
<lastmod>2026-05-31T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/posts/ssl-tls-certificates-explained</loc>
<lastmod>2026-05-31T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/posts/vps-setup-guide</loc>
<lastmod>2026-05-31T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/posts/hysteria2-setup-guide</loc>
<lastmod>2026-05-30T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/posts/mas-activation-guide</loc>
<lastmod>2026-05-30T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/posts/self-hosted-vaultwarden-guide</loc>
<lastmod>2026-05-30T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/posts/ssh-keys-setup-guide</loc>
<lastmod>2026-05-30T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/posts/windows-pause-updates</loc>
<lastmod>2026-05-30T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/posts/windows11-wsl2-setup-guide</loc>
<lastmod>2026-05-30T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-1/ai-capabilities-through-games</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-1/appendix-a-product-thinking</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-1/appendix-articles/example0-1/vibe-coding-tools-snake-game-tutorial</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-1/appendix-articles/example0-2/vibe-coding-tools-build-website-with-ai-coding-and-design-agents</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-1/appendix-b-common-errors</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-1/appendix-c-consumer-scenarios</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-1/appendix-consumer-scenarios</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-1/appendix-double-diamond</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-1/appendix-idea-sources</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-1/appendix-industry-scenarios</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-1/appendix-jobs-to-be-done</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-1/appendix-mom-test</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-1/building-prototype</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-1/complete-project-practice</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-1/finding-great-idea</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-1/integrating-ai-capabilities</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-1/introduction-to-ai-ide</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-1/learning-map</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/ai-capabilities/dify-knowledge-base</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/assignments/copywriting-platform-supabase</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/assignments/copywriting-platform-supabase/PRD</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/assignments/custom-dify-agent-platform</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/assignments/custom-dify-agent-platform/PRD</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/assignments/exam-management-express</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/assignments/exam-management-express/PRD</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/assignments/modern-landing-page</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/assignments/modern-landing-page/PRD</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/assignments/movie-recommendation-springboot</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/assignments/movie-recommendation-springboot/PRD</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/assignments/simple-grocery-microservices</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/assignments/simple-grocery-microservices/PRD</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/assignments/traffic-data-visualization-go</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/assignments/traffic-data-visualization-go/PRD</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/assignments/travel-planning-agent-platform</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/assignments/travel-planning-agent-platform/PRD</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/backend/ai-interface-code</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/backend/database-supabase</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/backend/git-workflow</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/backend/modern-cli</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/backend/stripe-payment</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/backend/zeabur-deployment</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/frontend/design-to-code</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/frontend/figma-mastergo</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/frontend/hogwarts-portraits</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/frontend/llm-skills-beautiful</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/frontend/lovart-assets</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/frontend/modern-component-library</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/frontend/multi-product-ui</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2/frontend/ui-design</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-2</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-3/ai-advanced/langgraph-advanced-rag</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-3/ai-advanced/llamaindex-enterprise-knowledge-base</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-3/ai-advanced/rag-introduction</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-3/core-skills/agent-teams</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-3/core-skills/basics</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-3/core-skills/claude-agent-sdk</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-3/core-skills/long-running-tasks</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-3/core-skills/mcp</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-3/core-skills/mobile-development</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-3/core-skills/skills</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-3/core-skills/spec-coding</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-3/core-skills/superpowers</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-3/core-skills/workflow</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-3/cross-platform/android-app</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-3/cross-platform/browser-ai-extension</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-3/cross-platform/choose-platform</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-3/cross-platform/electron-voice-to-text</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-3/cross-platform/ios-app</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-3/cross-platform/nft-minting</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-3/cross-platform/pwa-local-app</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-3/cross-platform/qt-industrial-hmi</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-3/cross-platform/vscode-extension</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-3/cross-platform/wechat-miniprogram</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-3/cross-platform/wechat-miniprogram-backend</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-3</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/stage-3/personal-brand/personal-website-blog</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/1-computer-fundamentals/algorithm-thinking</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/1-computer-fundamentals/compilers</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/1-computer-fundamentals/computer-networks</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/1-computer-fundamentals/computer-organization</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/1-computer-fundamentals/data-encoding-storage</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/1-computer-fundamentals/data-structures</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/1-computer-fundamentals/operating-systems</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/1-computer-fundamentals/power-on-to-web</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/1-computer-fundamentals/programming-languages</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/1-computer-fundamentals/transistor-to-cpu</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/1-computer-fundamentals/type-systems</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/1-computer-fundamentals/vibe-coding-fullstack</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/2-development-tools/command-line-shell</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/2-development-tools/debugging-art</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/2-development-tools/environment-path</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/2-development-tools/git-version-control</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/2-development-tools/ide-basics</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/2-development-tools/package-managers</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/2-development-tools/ports-localhost</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/2-development-tools/regex</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/2-development-tools/ssh-authentication</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/3-browser-and-frontend/a11n-i18n</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/3-browser-and-frontend/browser-as-os-rendering</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/3-browser-and-frontend/frontend-engineering</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/3-browser-and-frontend/frontend-framework-nature</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/3-browser-and-frontend/frontend-frameworks</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/3-browser-and-frontend/frontend-project-architecture</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/3-browser-and-frontend/graphics-animation</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/3-browser-and-frontend/html-css-layout</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/3-browser-and-frontend/javascript-deep-dive</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/3-browser-and-frontend/javascript-runtime</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/3-browser-and-frontend/realtime-communication</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/3-browser-and-frontend/routing-navigation</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/3-browser-and-frontend/state-management</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/3-browser-and-frontend/typescript</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/3-browser-and-frontend/web-performance</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/4-server-and-backend/api-design</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/4-server-and-backend/api-intro</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/4-server-and-backend/async-task-queues</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/4-server-and-backend/auth-authorization</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/4-server-and-backend/backend-languages</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/4-server-and-backend/backend-layered-architecture</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/4-server-and-backend/backend-project-architecture</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/4-server-and-backend/caching</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/4-server-and-backend/client-languages</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/4-server-and-backend/concurrency-async</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/4-server-and-backend/cross-platform</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/4-server-and-backend/domain-specific-languages</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/4-server-and-backend/file-storage</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/4-server-and-backend/http-protocol</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/4-server-and-backend/message-queues</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/4-server-and-backend/rate-limiting-backpressure</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/4-server-and-backend/request-journey</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/4-server-and-backend/search-engines</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/4-server-and-backend/serialization</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/4-server-and-backend/web-frameworks</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/5-data/ab-testing</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/5-data/data-analysis</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/5-data/data-governance</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/5-data/data-models</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/5-data/data-tracking</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/5-data/data-visualization</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/5-data/database-fundamentals</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/6-architecture-and-system-design/distributed-systems</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/6-architecture-and-system-design/high-availability</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/6-architecture-and-system-design/monolith-to-microservices</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/6-architecture-and-system-design/system-design-methodology</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/7-infrastructure-and-operations/ci-cd</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/7-infrastructure-and-operations/cloud-iam</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/7-infrastructure-and-operations/cloud-platforms</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/7-infrastructure-and-operations/cloud-storage-cdn</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/7-infrastructure-and-operations/dns-https</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/7-infrastructure-and-operations/docker-containers</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/7-infrastructure-and-operations/gateway-proxy</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/7-infrastructure-and-operations/incident-response</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/7-infrastructure-and-operations/infrastructure-as-code</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/7-infrastructure-and-operations/kubernetes</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/7-infrastructure-and-operations/linux-basics</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/7-infrastructure-and-operations/load-balancing-gateway</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/7-infrastructure-and-operations/monitoring-logging</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/8-artificial-intelligence/ai-agents</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/8-artificial-intelligence/ai-capability-dictionary</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/8-artificial-intelligence/ai-history</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/8-artificial-intelligence/ai-native-app-design</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/8-artificial-intelligence/ai-protocols</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/8-artificial-intelligence/context-engineering</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/8-artificial-intelligence/embedding-vector-retrieval</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/8-artificial-intelligence/image-generation</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/8-artificial-intelligence/llm-principles</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/8-artificial-intelligence/model-finetuning-deployment</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/8-artificial-intelligence/multimodal-models</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/8-artificial-intelligence/neural-networks</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/8-artificial-intelligence/prompt-engineering</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/8-artificial-intelligence/rag</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/8-artificial-intelligence/speech-synthesis-recognition</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/8-artificial-intelligence/transformer-attention</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/9-engineering-excellence/code-quality-refactoring</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/9-engineering-excellence/design-patterns</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/9-engineering-excellence/open-source-collaboration</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/9-engineering-excellence/security-thinking</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/9-engineering-excellence/technical-writing</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/9-engineering-excellence/technology-selection</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix/9-engineering-excellence/testing-strategies</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/appendix</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/guide/introduction</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
<url>
<loc>https://blog.ybysn.org/tutorial/index</loc>
<lastmod>2026-06-02T00:00:00.000Z</lastmod>
</url>
</urlset>
