which tech file should we be using with the user_analog_project_wrapper.mag? Do we need to run the tcl file also? I have been using the skky130A.tech file found in openpdks>sky130>sky130A>libs.tech>magic but it sort of looks like not everything is showing up even after running the tcl file? Thanks!

Unlike the digital version, which has power rails and bypass caps everywhere, the analog layout is mostly empty space. Is there some thing you expect to see that you don't?

when I open the user_analog_proj_example I get empty boxes? I was expecting to have at least some layout?

They are instances of other designs/layouts. I suppose magic doesn't show you the insides by default. I'm don't use magic, so I can't say