Technical guide
Uninstall npm packages cleanly
Remove local or global npm dependencies, review manifest and lockfile changes, and understand why shared transitive packages may remain.
Technical guide
Update package.json dependencies to newer releases
Preview upgrades with npm-check-updates, revise dependency ranges in controlled batches, and validate the resulting lock file.
Technical guide
Sync a GitHub fork with its upstream repository
Fetch from the original repository, update the correct branch, and push to your fork without assuming local commits or branch renames disappear automatically.
Technical guide
Update Node.js and npm safely
Identify the active installation, choose a supported Node release, check npm compatibility, and validate the project before rolling out an upgrade.
Technical guide
Upgrade Node.js on macOS
Update Node with its existing installation manager, avoid conflicting paths, and verify the runtime architecture and project compatibility.
Explainer
Use environment variables in Nginx configuration
Render configuration templates before startup, preserve Nginx variables, and understand what the env directive actually does.
Technical guide
Run executables from local npm packages
Run project tools through npm scripts or npm exec, understand bin links, and avoid accidentally downloading a different command version.
Technical guide
Propagate MDC safely through Java thread pools
Capture MDC when submitting work, install it before execution, and restore the prior context to prevent leakage across reused threads.
Technical guide
Use multiple Node.js versions on one computer
Switch Node.js versions with nvm, record a project version, and keep local shells, editors, and CI using the intended runtime.
Technical guide
Run a simple web server with Node.js
Serve an HTTP response with Node.js, add a small route, or preview a static directory with a dedicated server.
Technical guide
Use the selected Grafana time range in a Prometheus query
Separate the dashboard range, lookback window, query step, and evaluation time when building PromQL panels.
Technical guide
Verify TLS certificates from the command line
Check certificate chains, hostname coverage, and server purpose with OpenSSL, while distinguishing trust anchors, intermediates, and revocation checks.