The puzzle itself is somewhat gimmicky, but I think there’s potentially interesting variations of the idea.
Each grid obeys regular Skyscrapers rules. Additionally, the numbers in the rightmost column of the grid on the left act as clues for the grid on the right, and vice versa.
(Thanks to edderiofer for pointing out the old version was broken!)
The Modern Experience 
I seem to get two solutions here; rows 5 and 6 seem interchangeable.
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You’re absolutely correct, they were! I should hope that this new version has a unique solution. Thanks for the tip!
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