Implementing a Signal Contingency Plan (Delta Chat with Fanny and Mary) | anarchistnews.org

This is an interesting podcast that discusses the advantages of Delta Chat, such as how it's resistant to being blocking by state governments due to using a subset of the Email protocol (blocking delta chat would effectively block all emails).

The hosts suggest delta chat as a backup contingency plan in case Signal was blocked or went down, but I would personally go further than that, and suggest that Deltachat be used instead of Signal if at all possible, as Signal is a centralized service that requires pairing a highly identifiable phone number to your account.