Build a valid package.json with a guided form and a live preview — no syntax mistakes.
No — this tool only generates the package.json file text. You still run `npm install` (or yarn/pnpm) afterward to actually install what's listed.
Dependencies are packages your project needs at runtime (in production). devDependencies are only needed during development — build tools, linters, test frameworks — and aren't installed when a package is installed as a dependency of something else.
It's a safeguard that makes npm refuse to publish the package if someone accidentally runs `npm publish` inside it. It's standard practice for any application (as opposed to a reusable library) that was never meant to be published to the npm registry.
It produces the same kind of file, but with a visual form instead of answering prompts in a terminal — useful if you want to see the whole structure at once, double-check formatting, or aren't at a terminal.
