How to disable Gh plugin in R8 while keeping it functional in R7

Grasshopper
1

I need to Stop Rhino Nest from messing with Grasshopper in Rhino 8 (but keep it working in Rhino 7)

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2

maybe _GrasshopperLoadOneByOne

3

Ideally Rhino Nest would be installed via Package Manager, developers can target a version that way.