My man, * you 100 percent understand lol.
Lol^256, my man, I got how to use this thing the first time you explained, what I had encountered was due to no space between target and -o output.txt in the command line page, so it displayed the 0 point public key and all the offsets were invalid coordinates, lol.
However when your target is one of the exact points you are subtracting, in the out put file it will show for example: 020000000000000000000000000000000000000000000 # + 1 and your target k is actually 1, so when the tool subtracts 1 from your target, it shows the 0 point public key. This is actually very interesting, because you just need to get "lucky" and subtract the exact k as the k of your target from your target to see the 0 point p.
Maybe you didn't know about this, so my man it is you who doesn't 100 percent knows the tool which you developed. Lol^N-1.
*= not the original quote, modified by me.😅
When you can explain and show examples better, maybe it will be easier to understand what you are saying.
The #target is the supplied key.
I did not develop this tool, albert0 did.