This documentation is a work in progress. Any help is welcome to fill in the gaps!
For Visual Studio Code you'll need to integrate an ESLint plugin.
For VIM you can use the awesome ALE, which provides out-of-the box integration with all the tooling provided by Volto.
Use this checklist to make sure your editor integration is properly integrated, most importantly for .js/jsx files:
The editor should automatically flag syntax errors
The editor should automatically flag unused imports
The editor should automatically (and properly) flag imported modules that are not found
The editor should provide automatic code formatting on save