Comment by gucci-on-fleek
2 days ago
> However, the build process for XeTeX (and all other mainstream TeX engines) is extremely baroque
(Disclaimer: I'm on the TeX Live team)
Yes, the build process is rather unusual internally, but this is pretty well insulated from the user. The "standard" build commands used by lots of other open source projects
git clone […] && ./configure && make
should mostly just work, and give you a functioning TeX engine at the end. The full steps are listed at [0] if you're interested in more details though. And TeX Live is regularly built on essentially every platform imaginable [1], so it's pretty unlikely that you'll ever need to work with the low-level build system.
And only some of the engines require this complex build process; LuaTeX is the recommended engine these days [2], and it's written entirely in C (with a few C++ libraries), and it uses a standard autotools build process [3].
> One of the big motivators for the launch of the Tectonic project was to break out of this ridiculously unwelcoming development process.
TeX development is pretty welcoming in my personal experience: the first time that I built TL (~5 years ago), I was able to follow the official instructions without any problems, and I got a working TeX engine by the end of it. And it was only 2 or 3 years after that that I became an "official" member of the TL team, so I like to think that the development process is fairly welcoming.
But if you have any suggestions on what we can do better, please let me know, either by replying to this comment or to the email address linked in my profile.
> Tectonic is based on the C/C++ files that emerge from the XeTeX build process
I haven't looked at the Tectonic source, but the problem is that the C code generated by Web2C is fairly unreadable, so it's not really very usable as source code.
> While the core TeX architecture and XeTeX are largely stable, they do, however, evolve with time.
XeTeX is essentially frozen for the time being [4], unless someone steps up to maintain it. We are cautiously optimistic regarding LLMs though: they seem to be fairly decent at writing WEB code, and since even the TL development team only has 2 developers who are proficient in WEB, we'll take any help that we can get. (We don't have any non-trivial AI-written code yet, but it's definitely something that we're looking into)
[0]: https://tug.org/texlive/build.html
[1]: https://ftp.math.utah.edu/pub/texlive-utah/
[2]: https://www.latex-project.org/news/2024/11/01/issue40-of-lat...
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