Suggestion

Hi Eric,

How about we compromise and I keep my commas but get rid of the second "existed" at the end of the sentence? I agree, it is redundant. My intention for that sentence is to define archives in a separate clause within the sentence, separating it with commas. It is just my personal style of writing.

I will definitely add a "See Also" section. I am not sure about the code but I will look it up as you suggested.