Timbic/prettier-config ? reverse-engineered prompt

Build me a small TypeScript package that gives me an easy way to use a prettier config with sensible defaults and type help.

I want to be able to install prettier and this package, then import a helper like withTimbic() in my prettier config and either use the default settings or pass my own options that override them. The defaults should be the ones in the README, including things like tabs, 4 space indent, 140 print width, single quotes off, semicolons on, and trailing commas everywhere.

Please make the package feel polished, with good TypeScript types so editors show the right option hints and defaults when I hover over settings. Include a clean README example showing how to use it and how to customize it. If needed, look up current docs online to make sure the prettier option names and types are correct.

Keep it simple and focused on being a reusable config package, not a full app.