Batch photogrammetry and gaussian splat pipeline for video game level design - a WIP early look

This is a work in progress look at a passion project of mine. I want to simply take a video, press a button, and then build a low-poly level design using the photogrammetry and gaussian splats as a reference. There is probably a lot I don't understand about these topics so please educate me in the comments if you know whats going on. I also have some problems I could use help with.