Setting up servers and networks by writing them as code files that a tool then builds, so setups can be repeated exactly.
Like a recipe card kept on file: anyone can cook the same dish from it, and changes are tracked on the card.
Projects covers builds and migrations that benefit from repeatable setups.
Does a small business need this?
Rarely directly. It matters when your software team or provider runs many servers.
Every WILDCARD card exists to solve one named problem. Find yours.