In Portuguese (especially Brazilian), there are singular and plural forms of "you": "você" (singular) and "vocês" (plural). In English, "you" behaves like a plural because it's followed by "are" instead of "is". The only exception I can see is "yourself" and "yourselves" that refer to both singular and plural forms.
However, In Portuguese, even though we have "vocês" as plural form, we also use "vocês todos" or "todos vocês" ("you all"/"all of you") sometimes.
It would be so unfortunate if someone made an Open source hardware version of anti-drone guns...