Typst, a new markup-based typesetting system, is now open source
There's also Sile: <a href="https://sile-typesetter.org/" rel="nofollow">https://sile-typesetter.org/</a><p>LaTeX (Well, LuaTeX) powers my E-ink newspaper (<a href="https://imgur.com/a/NoTr8XX" rel="nofollow">https://imgur.com/a/NoTr8XX</a>), but I've been curious to use it as a vehicle to try out some of these alternatives and see if they can put together a non-trivial layout.