DevSecOps engineer sharing experiences and insights on AI, Web3, and Claude code development. Aims to help solve technical challenges, improve development efficiency, and grow through community interaction. Feel free to comment and discuss.
This article explains how to design a secure payment‑to‑business‑logic workflow by separating concerns, verifying webhook signatures, using message queues for asynchronous processing, and applying privilege‑escalation safeguards such as service accounts, idempotency, and network isolation.
This article explains how npm scripts handle command‑line arguments, compares using the double‑dash separator versus omitting it, shows visual flow diagrams, and provides best‑practice recommendations to ensure clear, safe, and POSIX‑compliant parameter passing in JavaScript projects.
This guide explains how to bypass interactive password prompts when using psql by configuring a per‑user .pgpass file, setting the PGPASSWORD environment variable for temporary sessions, and adjusting the server‑side pg_hba.conf file, while covering required file formats, permission settings, security trade‑offs, and best‑practice recommendations.
Claude Code 1.0.123 transforms user‑defined slash commands from manual shortcuts into AI‑controlled tools, enabling Claude to autonomously invoke commands like /lint or /deploy‑staging, which streamlines developer workflows and marks a significant step toward smarter, automated human‑AI collaboration.
Claude Code 1.0.123 upgrades user-defined slash commands into AI‑driven tools, allowing the Claude assistant to autonomously invoke commands like /lint or /deploy‑staging, turning manual shortcuts into automated actions that streamline development workflows.
This guide explains how to configure Jest test scripts in a package.json file and use npm commands to run the full test suite, generate coverage reports, watch for changes, and target individual test files or cases for faster, more focused development.
This guide explains how to use Git's modern "git restore" command, the classic "git checkout" syntax, and "git clean" to safely discard tracked changes or remove untracked files in a chosen directory, including safety tips like dry‑run options.
This article reviews essential tools and formats—such as Postman, Apidog, Swagger/OpenAPI, and API gateways like Amazon API Gateway and Kong—that help backend developers efficiently save, document, and manage HTTP API information throughout the development lifecycle.
This guide explains why SSH agent forwarding can break despite correct client and server settings, reveals the hidden role of connection multiplexing, and provides a step‑by‑step solution to reset the master connection so forwarding works again.
This guide explains how macOS Keychain can store and automatically provide SSH key passphrases, combining strong encryption with seamless daily use by configuring the SSH client, adding the key to the agent, and updating the ~/.ssh/config file.
