After replacing each word, I'll format the result as the user requested, using the v2 syntax. Finally, I'll present the rewritten text following the example, ensuring that the output is clean and correctly formatted.

Proceeding through each word with this approach, ensuring that brand names like Termux, pkg, SSH, VNC remain unchanged. Also, technical terms like "termux command" should stay as they are, but the word "command" might need alternatives like Directive.

"Customizing the Termux interface and layout" – "customizing" could be "personalizing", "tailoring", "modifying". "Interface" as "GUI", "user interface", "display".

Next, "using a command or by downloading and running a script." "using" → employing, "a command" → an order, "by downloading" → by fetching, "and running a script" → "and executing a set of instructions|and launching a program|and initiating a code module".