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Alex Ilyaev alexilyaev

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A really nice tool to manage the different Node.js/npm/yarn versions between projects:

The problems it solves

  • Making sure everyone who works on the project uses the same Node.js/npm/yarn version for consistent dependencies tree and Node.js execution.
  • Switching the Node.js version when jumping between projects.

Configs + Environment Variables



  • Very simple to setup.
  • Automatically assigns configured values on top of process.env.
  • Automatically supports overriding configured values via Environment Variables.
  • Promotes best practices (FAQ):
alexilyaev /
Last active Mar 4, 2021
ESLint `no-null` rule from `eslint-plugin-unicorn`
alexilyaev /
Last active May 23, 2021
Checking out StackBlitz Web Containers

StackBlitz - Introducing WebContainers: Run Node.js natively in your browser

Good Things

  • Really easy to start up a new project and play around with it locally (like in CodeSandbox, but supports Node.js as well).
    • Turns out CodeSandbox have an experimental support for Node.js projects as well 😳 I don't know if they run it locally or remotely, and you can't clone and existing Node repo and run it.
  • Can connect to any repo on GitHub and play around with the code (if the Node.js version matches):
    • If it's my repo, I can directly commit to it. That's actually nice, cause it could be a very fast workflow for quick changes.
  • Can run on a Tablet or Chromebook.
alexilyaev / .
Last active Jul 11, 2021
Setup ESLint with Prettier
View .

ESLint with Prettier Setup

Basically, when using Prettier, all ESLint styling rules should be disabled.
This can be done with eslint-config-prettier.

See .eslintrc.js example below.
In prettier.config.js you can use anything you want (see example below).

Now the tricky part is how to run them...
Usually ESLint should run first, then Prettier.

alexilyaev /
Last active Oct 10, 2021
New Mac Guidelines
alexilyaev /
Last active Nov 25, 2021
CSS in JS - Emotion Guidelines


This repo uses a CSS-in-JS library called Emotion for its styling.

Why Emotion?

Emotion is a performant and flexible CSS-in-JS library. Building on many other CSS-in-JS libraries, it allows us to style apps quickly with string or object styles. It has predictable composition to avoid specificity issues in CSS. With source maps and labels, Emotion has a great developer experience and performance with heavy caching in production.

Also, Material UI v5 will most likely use Emotion instead of JSS:
material-ui - [RFC] v5 styling solution