Cross-Platform Go Command-Line Tool from an actual code

I'm in need of a skilled Go developer to help me create a powerful and efficient cross-platform command-line tool.

I have some scripts that convert a bson file into json. the script does a lot of things, compare, statistics, decode, etc.

I need to simplify the script with only the function "decode".

Basically, you need to remove all the other stuff from the script and teach me how to compile it

Please mention something about the project in your proposal. I don't hire bots responses.