https://github.com/mindChickey/circuit/tree/master/cirlisp

There is no documentation, but I think the design is worth a look.

The specific language doesn't matter much; using TypeScript to run it in the browser is a good choice.

As for a graphical interface for wires and gates—I don't think it's necessary;

Expressing it directly in code is more efficient..

I agree code as source of truth is a must and GUI is not necessary for authoring, everything I built (Snake, Pong, the RISCV CPU) was done headlessly in node with the help of Claude working to a spec just using the @simten/core lib on npm.

I just built a readonly ui-layer on top with the hope of making it more accessible to students/learners starting out in the space, the main features being able to visually scrub between cycles and drill down into the internals of an abstracted component. I also have a Verilog import thing I've been working on to allow learners to visualise and poke around in the browser

For instance, if you clicked on an n-bit adder,

you could see how it was recursively generated,

showing that it consists of a 1-bit adder combined with an (n-1)-bit adder.

I think that would be really interesting, but I just haven't had the time to actually do it.