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Short, to-the-point, and I wasn't familiar with any of these options! Love it!

For the userland, there was only two tools on the post that allows signing. How will handle file encryption?

The article does mention saltpack, discussion about it here: https://news.ycombinator.com/item?id=14067003

This looks nice and it supports multiple recipients which was the first question that popped into my head.