This is the Delta Patcher which uses the original (dot)xdelta files!Works with all versions of Windows!With an attractive GUI this makes it one of the most easy to use patcher(not to mention it has advanced options too!)
I may try the new ram site, and download more RAM to my Switch. Not sure if ddr3 is the right ram
for it tho. Edit- no it uses floppy Ram, just like @AncientBoi