To distribute the macro there are several options:
1. Export macro as JSON
Export the macro as JSON and send it to your friends.
All they have to do is to install the free Kantu extension, import the macro and run it!
2. Or: Embedded the macro on a website.
Then all you have to do is to send your friends the link to the website! If Kantu is not installed yet, the Javascript code will prompt them to install Kantu in their browser.