I use WebStorm as my IDE, with One Dark as my color scheme.
Almost everything I code uses git for version control. I use Heroku and Netlify for CI/CD.
For light editing I like Visual Studio Code and Sublime Text.
I am currently exploring Airbnb's and Google's style guides. I also use ESLint and Prettier.
While I continue to use Windows regularly, I greatly prefer *nix systems.