Write the messages today that the people you love would need if you suddenly could not send them, and LastSignal holds them encrypted until silence says it is time. The system emails you a check-in on a schedule you set; answer it and nothing happens, which is exactly the point. Miss one and reminders follow at fixed intervals, and the final reminder can ping a trusted contact who is able to pause the countdown, buying time when a hospital stay or a lost phone is the real story. If nobody responds, your messages are delivered by email to each recipient, who decrypts them with their own passphrase; the server never holds plaintext, so even the person running it cannot read what you wrote. You can stagger access with a per-recipient delay, so one person reads their message the day it arrives while another waits the number of days you chose. Automations can report in through a keep-alive token endpoint instead of email, for machines that prove you are around by staying alive themselves. Timings for check-ins, reminders, and the trusted-contact pause are all configurable per account. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.