I do wonder such things like Base64decode being able to help out in here at all as they used in one of the last clues:

44 6d 69 74 72 69 20 68 65 72 65 2c 20 77 61 74 63 68 20 74 68 65 20 76 69 64 65 6f 20 61 67 61 69 6e 2c 20 61 6e 64 20 70 61 79 20 61 74 74 65 6e 74 69 6f 6e 20 74 6f 20 65 76 65 72 79 74 68 69 6e 67 20 79 6f 75 20 72 65 61 64 2e 20

=

Dmitri here, watch the video again, and pay attention to everything you read.

If they did.... where would it be used. lol.