Import multiple repo's into one workspace

When developing locally, I normally get related repo’s in the same parent directory, such that I can have them all open in my ide next to eachother in one workspace very easily. Is there some way I could do this in project idx without very very tediously uploading everything separately?

Like a mono repo?

If that’s the case then you can create multiple folders for each app and work on them… But the preview will be limited to just one app

The preview? What do you mean exactly?

The entire problem is that it is not a monorepo, then I could just clone it. But setting up an environment that can work with some fairly high level rust crates is tricky to set up with nixpkgs, and doing it 3 times separately for slightly different dependencies is painful