No matter how good the Handy Scan and Handy Studio apps get, many of us are going to use the scanned files in other applications. Because of this, it will be more productive to copy the scanned data files from several different scans into the same working folder.
Because of this, naming the original fused scan file and the post-mesh fused scan files fuse.ply and fuse_mesh.ply makes the user have to rename everything before copying them to the same folder.
Please consider replacing “fuse” with the date & time stamp, as is done with the folder name and the .csprj file.