How Do I Use Automator Workflows Across All Of My Macs?

I use a number of Automator scripts on my Mac Pro that I would also like use on my Mac Mini and MacBook Air.
What is the best method to do this? I’d like to keep them in one spot, so if I modify something, all of my machines will use the new version.
Thanks in advance for your help!
Cheers,
Ed Weaver
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Ed Weaver