Here's a remix I made from SparrowMaker's great Raspberry pi case mount. It was originally made to screw on a prusa but I own an Ender 3 v2 and I wanted to be able to move my raspberry pi off of my printer on occasion so here is a version which slides in the aluminum extrusion.
I added a snap strip to prevent the pi from slipping out from the front.
I also adjusted the height to accommodate the extended malolo screw-less snap-fit raspberry pi 4 case since I wanted to fit a fan and heatsinks on my pi.
Take not that the clip for the extrusion is quite tight I had to slide it into the extrusion with some force. you might want to trim it a bit lengthwise to accommodate a smoother fit.
This is not my original design but feel free to message me if you want a particular remix to fit a different case size or you would like a convenient additional feature. All remixed STLs will be added to the download files.