Is there a cross-platform solution to interacting with node OS when using selenium grid?

I write some selenium tests that were run and passed locally. I wrote them for Windows/Chrome. At one point, my app opens up a local file explorer to upload a file. To interact with this I used AutoIt, which solved my problem. However, now I am moving my tests to grid (through lambdatest) and I am testing on both Windows and Mac. AutoIt only works on Windows, and out of the box it only works locally. I know some solutions have been offered to use AutoIt remotely, but this doesn't help me with Mac OS.

Is there a general solution for how to approach interacting with a remote machine during a selenium test?

Any help is appreciated. I'm not sure how to approach this.