Htun Khaing Lynn is a software engineer in Yangon, Myanmar, who loves building secure backend systems, friendly APIs, and dependable financial software with Java and Spring Boot.https://htunkhainglynn.github.io/https://htunkhainglynn.github.io/blog/ddia-second-edition-chapter-2/https://htunkhainglynn.github.io/blog/ddia-second-edition-chapter-2/My notes on nonfunctional requirements: performance, reliability, scalability, and building software that stays pleasant to operate and change.Fri, 28 Aug 2026 00:00:00 GMTDDIASystem DesignReliabilityhttps://htunkhainglynn.github.io/blog/ddia-second-edition-chapter-1/https://htunkhainglynn.github.io/blog/ddia-second-edition-chapter-1/My friendly recap of trade-offs in data systems architecture: OLTP, analytics, cloud choices, distributed systems, and why context always wins.Thu, 27 Aug 2026 00:00:00 GMTDDIASystem DesignData Systems