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I don't have my MBP nearby to try it out, but this font + "Cathode" [0] seems like it'd be pretty neat.

Since this has the scanlines “baked in”, just be sure to disable Cathode’s own emulation or it’ll be pretty ugly.

Cathode doesn't let you use custom fonts sadly.

I just wanted the Cathode font ...

Yes it does! Preferences -> Font, and under “Modern”, it will let you use any monospaced font.