Shareful app extension

Curious if anyone played with this extension before? I went on a hunt today to solve a daily problem: I am constantly having to sign documents that I simply need to get back on my clipboard (i.e. that I open and sign). This is much easier on IPadOS. A simply “copy” is not available on most sharesheets on MacOS. This extension seems to resolve it, thus making it something that can be automated within larger, say, keyboard maestro routines. [EDIT: I find that even having it available to paletro makes life easier.]