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GitHub introduces hybrid post-quantum SSH security to better protect Git data in transit
(alternativeto.net)
This is a most excellent place for technology news and articles.
You're right. Only thing is that this is currently being worked on by multiple nation states as well, as these theories do have a military advantage. There will be money and resources pouring into this field for decades.
Even if it takes another 3 or 4 decades, the goal posts are planted, and I think Q-Day will eventually happen. Of course, im just assuming and can't know the future. For now, it is a toy as you have said.