Typ is described as 'simple typesetting application. Turn plain Markdown into a formatted PDF ready for print' and is an app in the News & Books category. There are four alternatives to Typ for Mac, Windows, Linux, Self-Hosted solutions and Docker. The best alternative is wkhtmltopdf, which is both free and Open Source. Other great apps like Typ are Prince XML (Free Personal), WeasyPrint (Free, Open Source) and PDFreactor (Free Personal).
wkhtmltopdf is an open source (LGPL) command line tools to render HTML into PDF and various image formats using the QT Webkit rendering engine. These run entirely "headless" and do not require a display or display service.