I wonder what's the status of LaTeX 3[1][2]. Also, it would be nice to have an automation in the style of Tectonic[3][4] (which looks like a dead project itself) out of the box.

[1] https://www.latex-project.org/latex3/

[2] https://github.com/latex3/latex3

[3] http://tectonic-typesetting.github.io/

[4] https://github.com/tectonic-typesetting/tectonic/