[+] challenge f7 b4 6c 6b 00 00 6b 3f 02 63 a8 c0 f7 ac 6c 6c
[+] reply     49 0a ad 58 f1 ea b2 5a 3d fe f0 ee 92 6b 0a 20
[+] reply satisfies firmware comparison: True
opcode 7 -> flag=0x00 payload=44 6f 6e 65 0a 00 (b'Done\n\x00')
peek 0x3f200000 (8) -> e9 7a e2 f5 aa aa 55 55
poke-file harness/hello-world/payload.bin: 82 bytes at 0x01800000: ok
jump 0x01800000: sent