We start by downloading the source files.
┌── 👽AKUMA 🥷 ➤➤ 🌐10.10.0.12
├──[ ~/Desktop/CTF/hackerroyale]
└─ ⚔ tree -ah
[ 0] .
├── [ 0] PJL
├── [ 0] PostScript
├── [ 0] saveDevice
│ └── [ 0] SavedJobs
│ ├── [ 0] InProgress
│ │ └── [1.2M] Factory.pdf
│ └── [ 0] KeepJob
└── [ 0] webServer
├── [ 0] default
│ └── [4.4K] csconfig
├── [ 0] home
│ ├── [ 165] device.html
│ └── [ 230] hostmanifest
├── [ 0] lib
│ ├── [ 0] keys
│ └── [ 0] security
├── [ 0] objects
└── [ 0] permanent
Fastory.pdf looks interesting, so we start by opening it. Scrolling down we find the flag HTB{1n7323571n9_57uff_1n51d3_4_p21n732}.