I have been working with mjml and handlebars for a very long time, but I really miss the type-safety of JSX syntax paired with Typescript and component composition. So I wanted to to combine mjml with jsx. There are libraries like mjml-react or react.email, but for no apparent reason, they seem to depend on react.
So I decided to create mjmx[0] - a standalone, zero dependencies (other than mjml), custom jsx runtime for rendering mjml. Appreciate if you would give a try and provide some feedback.