Show HN: Death Plan Switch, a self-hosted dead man's switch for solo devs

"Death Plan Switch" is a self-hosted dead man's switch designed for solo developers to notify their contacts in case of sudden disappearance. The system works on a weekly schedule, sending an email to the creator's contacts and their next of kin, providing confirmation that the creator is still alive. If the creator fails to respond, the system triggers and notifies the next of kin before informing the rest of the contacts.

The email campaign runs at the same time each week, ensuring the notification reaches the contacts within 13 days of the creator's last check-in. To prevent accidental triggering, the email link must be clicked manually. The creator, who runs a one-person web studio in regional New South Wales, designed the system after realizing that no simple self-hosted solution existed to handle such a critical situation.

The system is now running on the creator's own device, and they are seeking feedback from others who might use it for their own businesses. The software is free, MIT licensed, and easy to install, with the only technical step being the addition of a crontab line.