It is funny you mention that actually - as a personal anecdote, I can say that many of my friends who happen to be advocates for free distro of crypto tech - or more commonly, cryptocurrencies - also tend to be fairly strong 2A advocates.
TL;DR; - IMO there is some significant crossover between crypto* people, and 2A people.
Cryptography is useful to protect privacy, which is very closely related to liberty.
I have noticed this correlation as well (I am an example of it in fact). I think there is a common thread of decentralization and bringing power closer to the people that resonates with the two groups.
I think the correlation is termed "libertarian."
I have not noticed this correlation, so it may be anecdotal.