"a sorted line"
no need to provide an image of the source code this time, since it's literally unicode codepoints.
1d8fb
1d815
1d81a
1d85f
1d876
not just any codepoints, but signwriting codepoints. this is when the "a sorted line" part comes in.
it basically uses the same tactic as rooms 1 and 4, so we get "ASL".
so, we go ahead and try to map these characters to ASL sign language letters, like this:
...which gives us our next answer: turbo.