As a half EE/half SWE I think there are significant benefits to circuits as code but I'm not impressed with this one. Atopile has a narrower focus (autorouters are really really hard) and doesn't use as many buzzwords. Like why on earth does a "web first approach" matter at all for hardware development?

But also, GUI tools are getting better, Kicad 9 had a lot of changes that made templating / reusing blocks easier. And it works fine if not great with version control.

I don't see circuit-as-code taking off with humans anytime soon, it's much better but not enough better to convince EEs many of which don't code much or at all. But I can see it becoming much more common as LLMs get better at complex circuits.

I think just looking at the first code example you can already see the problem. A lot of duplication and hand written or auto generated code. I thought the point was to define it in the code. Put an array of pin functions. For loop the footprint. That kinda thing. This looks like a mess to get started with and even worse is at higher point count parts it looks like it'll balloon in maintainability. Altium has very solid footprint generators with a nice menu. This looks like it's missing an overarching API for creating these long lists of parameters. Doesn't feel like the juice is worth the squeeze on this one. If it's a simple schematic, just do it by hand. If it's complicated, this feels harder to wrangle.

Another example of weird code is the previousLedName. Like like really that variable isn't used and the first term of the && should be that indeed check. But even more so, it should be an if statement not rely on remembering short circuiting (lazy evaluation) tricks. Because that's what you mean. You mean if it's not the first one, connect to the previous one. So, the code should say that. I find it hard to believe such a high level language would prevent it.

I think the pin label lists don't make sense. They're maps where the value is an array where the first element is the key? Why is this not just a list of pin numbers to names or a map of they're not contiguous whole numbers?

And then the icing on the cake: you still have to define where in XY everything is.

So really, in thinking about this, this looks more like a file format than a tool. And maybe that's fine. But I'll stick to the native formats of the tools.

There's a half dozen of them in any category, they are all different, they all seem to struggle badly with anything outside of simple examples, none of them appear to consider how things fit together in the real world, you almost never see any of them used for anything more complicated than a keyboard layout or an LED matrix, they all have reinvented the wheel instead of using industry standard formats, and they all talk about the "difficulty of using traditional tools" as though placing each XY point in space in your head is easier than dragging things around the screen like in MS Paint. You also never see any serious hardware people use them. Every one wants to do it all from keyboard to finished product instead of being satisfied as a intermediate tool that does one thing well.

But, they all have very polished documentation, they come with examples, they have nice looking websites, and it's obvious someone put a decent amount of thought into making them. It's not like they are useless either. Making a big grid of things? It's nice to be able to write an algorithm to do that instead of entering them by hand.

I brought this up in that post about the LLM to CAD thing the other day. It's like people keep saying "hardware is hard" but then keep trying to solve it like they would work on software problems.

Even with better results, the big issue with tools like these is that they simply don't match with the kind of development style that's needed for the problems at hand. You see the same issue with those drag-and-drop visual programming languages, or scripted modeling like OpenSCAD: they end up making fairly trivial details slightly easier, while significantly complicating the meat-and-potatoes. Nobody cares about a neat little part placement for-loop if it generates a living hell of autorouted spaghetti you can't possibly interpret and fix manually.

In reality the low-hanging fruit has already been covered by existing tooling. Automatically generating symbols and footprints from textual descriptions is routine practice, and software like KiCad already has a reasonably usable scripting API and a well-documented file format. A lack of code-based code-based EDA hasn't stopped projects like Ergogen[0] from popping up. The main limitation for additional automation is a lack of reliable input data, and user-side tooling can't fix that.

[0]: https://docs.ergogen.xyz/