Dmitry Anderson thanks for the feedback! Actually, there are two more articles

• https://medium.com/js-planet/basic-cli-in-node-js-a9ed1a4f4bd4 about basics,
• https://medium.com/js-planet/node-cli-with-commander-and-inquirer-3eacc0086e7c about commander library.

and I’m planning to write a few more as well.
For the second point — I think it’s a fair comment. However, I doubt it affects performance, it rather stands there for Oclif interface agreement.