Holy crap!

How?

What? Do tell.

In a flashback episode to Kara and Alex in high school, they need to see some damaged computer files. Kara says that Clark has a friend named Chloe who is really good with computers, and she mentions that Chloe is really into strange stuff and even has a 'Wall of Weird'...

that was a nice touch.

I thought they were doing the same thing, but it can't be done. Oliver Queen, Cat Grant, Maggie Sawyer, Lena Luthor, and Jimmy Oleson (and more) were all on Smallville. All completely different characters that don't fit with the same characters on Supergirl or I. The Arrowverse.

This is just another example of the horrible brainless writing plaguing all entertainment platforms.