How do I add a comment to the thread that explains how to install Rails?

I successfully followed the instructions from this platform for setting up Rails on Ubuntu 22.04. It went well, but there were one or two "gotchas" that would could have defeated persons not completely familiar with ssh and github. I wanted to share tips about that but, although comments are present, there appears to be absolutely no way to add a comment. Why was the thread closed?

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