This blog collects engineering notes by Sanghyuk Jung (benelog): things learned while building and operating backend systems, mostly around Java, databases, build tools, and developer productivity.

Most articles started as internal notes or as posts on my Korean-language blog 개발수양록. The pieces here are rewritten in English so that they can be shared with a wider audience.

Comments run on GitHub Discussions, so a GitHub account is all you need to join the conversation.