Install the correct versions of each package, which are listed by the command:
npm info "@esfront/cspell-config@latest" peerDependencies
If using npm 5+, use this shortcut:
npx install-peerdeps --dev @esfront/cspell-config
Create a cspell.json file with the following contents:
{
"import": ["@esfront/cspell-config"],
"ignorePaths": ["**/build/**"],
"words": ["some", "project", "specific", "words"]
}