Adding of last run commands is not working.

[suchoudh]

I am able follow the writeup where we have a .zing file called which contains commented stuff.
However the part where the last run commands are appended is not working.. i

Currently using vi I open a txt file in a directory that contains .zing file as well and when i press F4 the vi just asks to exit

Lastly
Can you please be more specefic how the below code works.

nnoremap :call Zing()
inoremap :call Zing()

" if you prefer a leader
let mapleader = ","
noremap z :call Zing()
inoremap z :call Zing()

PS: I came here from your blog https://tellspin.app/blog/why-interruptions-are-frustrating-to-developers/

[suchoudh]