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Yes, that's the biggest challenge. I'm not a big fan of routing stuff internally for looks rather than genuine aeroz.
For this reason, I did deliberately run my front brake outside the fork rather than through it so I could potentially just snip the cable ties and take the front caliper off. Then the bars can be packed so that the rear hose going into the frame is OK. But I've not looked into the practicalities yet.
No good for bikes with hydro lines. Unless you did something silly like run them externally.