Build a self-hosted dead man's switch for your business with Claude Code
A solo developer who lost his business during a 2012 hospital stay built Death Plan Switch, a self-hosted dead man's switch that tells the right people and hands over access if he goes missing. He wrote a long Markdown spec first and had Claude Code author the app, which is MIT licensed and free to run.
Source
romeo19361 on Hacker News · 2026-10-20 · Project link
Written in our own words. Credit to the original author. Link checked 2026-10-20.
What they did
A solo developer who lost his business during a 2012 hospital stay built Death Plan Switch, a self-hosted dead man's switch that tells the right people and hands over access if he goes missing. He wrote a long Markdown spec first and had Claude Code author the app, which is MIT licensed and free to run.
Result (as claimed)
76 points on Hacker News; he says it passes 42 unit tests and that clients see it as a selling point. Commenters pushed back that tests written by the same AI are weak assurance.
Tools they used
Cost: Claude Code: from $17/mo.
Set it up
Pick a contained repo or task
Start on a branch or side project where mistakes are cheap.
Install and configure
Set up Claude Code. Read what it can run on your machine and limit permissions where possible.
Run it on a real task
Give it a well-scoped issue and let it work. Review the diff like any pull request.
Add guardrails
Keep tests and CI in the loop, and never let an agent push to main or touch production secrets unattended.
Copy the full setup prompt
Paste into your agent and it will walk you through the setup, asking before anything that sends, posts or spends.
You are helping me set up this AI use case end to end in Claude Code. Goal: Build a self-hosted dead man's switch for your business with Claude Code What the original author did: A solo developer who lost his business during a 2012 hospital stay built Death Plan Switch, a self-hosted dead man's switch that tells the right people and hands over access if he goes missing. He wrote a long Markdown spec first and had Claude Code author the app, which is MIT licensed and free to run. Reported result (as claimed by the author): 76 points on Hacker News; he says it passes 42 unit tests and that clients see it as a selling point. Commenters pushed back that tests written by the same AI are weak assurance. Source: https://news.ycombinator.com/item?id=50161408 Tools they used: Claude Code Category: Dev & ops Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
You are helping me set up this AI use case end to end in Codex. Goal: Build a self-hosted dead man's switch for your business with Claude Code What the original author did: A solo developer who lost his business during a 2012 hospital stay built Death Plan Switch, a self-hosted dead man's switch that tells the right people and hands over access if he goes missing. He wrote a long Markdown spec first and had Claude Code author the app, which is MIT licensed and free to run. Reported result (as claimed by the author): 76 points on Hacker News; he says it passes 42 unit tests and that clients see it as a selling point. Commenters pushed back that tests written by the same AI are weak assurance. Source: https://news.ycombinator.com/item?id=50161408 Tools they used: Claude Code Category: Dev & ops Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
You are helping me set up this AI use case end to end in Grok Bot. Goal: Build a self-hosted dead man's switch for your business with Claude Code What the original author did: A solo developer who lost his business during a 2012 hospital stay built Death Plan Switch, a self-hosted dead man's switch that tells the right people and hands over access if he goes missing. He wrote a long Markdown spec first and had Claude Code author the app, which is MIT licensed and free to run. Reported result (as claimed by the author): 76 points on Hacker News; he says it passes 42 unit tests and that clients see it as a selling point. Commenters pushed back that tests written by the same AI are weak assurance. Source: https://news.ycombinator.com/item?id=50161408 Tools they used: Claude Code Category: Dev & ops Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
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Guides for this use case
How to self-host AI agents on a Raspberry Pi, Mac mini or homelab · How to vibe code an app with Claude Code · How to use AI agents for Linux, servers and homelabs
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