The first thing you probably asked yourself when learning how to lay out PCBs was “can’t the computer do this?” which inevitably led to the phrase “never trust the autorouter!”. Even if it hooks up a few traces the result will probably be strange to human eyes; not a design you’d want to use.
But what if the autorouter was better? What if it was so far removed from the autorouter you know that it was something else? That’s the technology that JITX provides. JITX is a company that has developed new tools that can translate a coarse textual specification of a board to KiCAD outputs autonomously.
How do you use JITX? At this point the company provides a front end to their tools; you use their website contact form to talk to a human (we assume) about what you want to make and how. But watching their demo videos (see the bottom of this post) gives a hint about how the tooling actually works. In brief; it takes a specification in a domain specific language that describes the components to use, then compiles (synthesizes?) that into KiCAD files that can be sent to fab.