We had similar ideas! Except mine is less customizable, I never thought to add formatting.

https://github.com/abejfehr/bigtext

https://www.abefehr.com/bigtext/

Same! This solution is way more flexible than mine was.

https://github.com/leoherzog/ParameterPage

https://parameter.page/?title=This%20is%20an%20Example%20Pag...!