We are a tiny company, and we actually wanted a custom solution to be deployed onto all the spreadsheets that we use in the company. The solution was to format the selected range in the spreadsheet based on our company standards. We never thought that it's doable within Google's limit so that everyone can use the same formatting and whenever we change the template or formating style it gets reflected on every person spreadsheet function.
These guys created and added macro for us, onto Clippy. Yea, just for us. The macro is not available onto the public, it works only on the accounts that we say. This is super cool. This is like deploying our own closed group addon, without any hassle of coding and deployment.
This is the best kind of technology adaptation that I have seen in GSuite Addons. Kudos teams!!!!