It's either already here or never happening, depending on your perspective [0] [1].
> it would be nice to have an automation in the style of Tectonic
What do you mean by "automation"?
[0]: https://www.texdev.net/2024/11/11/the-mythical-latex3
[1]: https://tug.org/TUGboat/tb44-1/tb136mitt-history.pdf#page=5