I highly encourage you to check out speedata publisher [1] by the berlin-based developer Patrick Gundlach. He is a well known figure in the TeX community and h

I highly encourage you to check out speedata publisher [1] by the berlin-based developer Patrick Gundlach. He is a well known figure in the TeX community and has created a (open-source [2]/self-hostable) document creation solution on top of LuaTeX. You can simply run that from the command-line and integrate it in your workflow but it also comes with a server integration that provides you with a REST API. Admittedly there is some kind of learning curve (even for LaTeX literate people as he is using an XML/HTML abstraction layer on top of it) - but that also keeps it interesting for users who have never played mich with any TeX-language prior to that date. [1]: https://www.speedata.de/en/ https://www.speedata.de/en/ [2]: https://github.com/speedata/publisher https://github.com/speedata/publisher