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CPU only (no GPU) for lightingmap build/compiling

hi guys,
I’m playing around with the idea of using xeon machines (without dedicated graphic cards) to compile projects through command light and I"m hoping to get some ideas/confirmation from the community.

I’m running something like this
UE4Editor.exe “project\projectname.uproject” -run=resavepackages -buildlighting -MapsOnly -AllowCommandletRendering -map=Testmap.umap-run=resavepackages -buildlighting -MapsOnly -AllowCommandletRendering -map=Testmap.umap

With a dedicate Nvidia card, the compile works just fine. But without one, I keep getting this error that says “dx11 feature level 10.0 is required to run the engine”.
From what I know, we don’t really need GPU for the compile so I’m wondering if I’m missing anything here or is there a flag somewhere that I can use to completely disregard the GPU side of this

Thank you