YanoSec / Code
Optional helper card. You can finish this recipe on paper.
The full CyberChef lesson is Stage 08.

Operation name in the CyberChef source: From Base64
Input: b2s=
Alphabet: standard Base64, with digits, letters, +, /, and = padding
Do not select an encryption operation and do not change the alphabet.
If a later build uses another name, stop and use the hand grouping in encoding-cards.txt.