Clarification on specific firmware build instructions please

Thr 2021.04.22

Thank you @Gordon and @fanoush for the prompt response.

More for Windows developers here:

'./command is the Unix syntax for 'run the command in the current directory''

Now having the knowledge on what I'm searching for, I found a nice detailed explanation:

https://unix.stackexchange.com/questions/4430/why-do-we-use-dot-slash-to-execute-a-file-in-linux-unix
'If you mean, why do you need ./ at the start - that's because (unlike in Windows), the current directory isn't part of your path by default. If you run:'

Will have a busy weekend reviewing those steps and going over those links. Thankx . . .