Source for creating my own create-x-app CLI command?

Is there any good source that dives into creating a CLI command such as create-t3-app? Would be very useful for the company I work at!
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Not updated for a few years, but this should give you a basic starting point: https://www.sitepoint.com/javascript-command-line-interface-cli-node-js/
Build a JavaScript Command Line Interface (CLI) with Node.js β€” Site...
Lukas White and James Hibbard show how to create a simple command-line app that interacts with the GitHub API to initialize Git repositories.