“Email isn’t as sexy as GitHub (and its imitators), but it has several advantages over the latter. Email is standardized, federated, well-understood, and venerable. A very large body of email-related software exists and is equally reliable and well-understood. You can interact with email using only open source software and customize your workflow at every level of the stack - filtering, organizing, forwarding, replying, and so on; in any manner you choose.”