A modern circuit simulator, that has a fully featured programable API, that can be run from a real modern programming language, would be a dream. Every simulator i have used has been pretty limited in that way, or at least those features were not well advertized. Even the insanely expensive ones. I mean the most expensive ones (like $100K liscense type deals, like Cadence) are if anything even less modern from a user interaction perspective.

My first academic paper (https://www.oxinabox.net/publications/White2015PsoTransistor...) was based on doing a search over parameters for the transistors being used in a circuit. The way that whole thing work was by string mangling the netlist file to update the parameters. Triggering the simulator on the commandline. Getting it to output a CSV of the signals. Parsing that CSV, and detecting edges and then measuring timing that way. Then throwing it at a particle swarm optimizer to fine a new one. That sucks from a user experience. It's a super cool way to solve problems though. that would be so easy with a real API.

Further, with julia being a differnetiable programming language, rather than having to use a particular swarm optimizer to search, I could have been differentiating it, and using some sophisticated gradient descent like LBGFS etc.

I hope that some of the general tools like this will be an outcome of this project.