Hey Arya,
I am CEO and Founder of FifthTry.com and we have built an open source language that we call FTD: site: ftd.dev, Github: https://github.com/FifthTry/ftd. FTD compiles to HTML/CSS/JS, and has good support for creating data driven UI components, and prose (so FTD is good for writing blog posts or technical documentation). We have also build FPM, a package manager for FTD, FPM can be used as a static site generator. Site: fpm.dev, Github: https://github.com/FifthTry/fpm.
We have been built these tools using Rust, and has been open source from day one, with extensive amount of documentation, journals, open roadmap planning and so on (checkout the roadmap/journal links in respective sites). We are also funded startup with full support from our investors to keep everything open source in cleanest way possible (no lock in, no privacy invasive tracking, no open core etc).
FPM was created out of a need that today it is possible to build software on top of open source libraries and tools, but books and documentation rarely include other open source book, since it is really hard to “package manage” other written content (markdown files, latex, word files, scattered hosting etc etc).
I would love to talk about it: “FTD/FPM: Future Of Writing”. Expected duration 30 mins.