Build a faith companion that lives in iMessage
Flint is a Christian companion people text for prayer, verses and daily check-ins, with no app to download.
Make an emergency contact page for when you lose your phone
A developer in Brazil built a page his family can use to send help messages; an LLM summarizes them into SMS, with details by email.
- Difficulty
- IntermediateOur rating
- Time to build
- Not reportedOur estimate
- Monthly cost
- Not reported
- Revenue
- Not reportedWe only show revenue the source states
- Engagement
- 84 HN points105 comments · fetched Oct 15, 2026
What they did
From any device, the page sends SMS (LLM-summarized) plus an email with location, IP and the full message.
How it went
Source code is public.
Worth knowing
Protect it from abuse; it sends real messages.
Builder recipe
Our own starting point, written from the source. Adapt it to your setup.
Stack
- A small web app
- SMS API
- LLM
Steps
- Give the agent access only to the accounts it needs.
- Write a clear brief with hard constraints.
- Ask it to report back before anything irreversible.
- Review the outcome and refine the brief.
Starter prompt
Tags
Read the original
- Hacker News: news.ycombinator.com/item?id=48294791 ↗ (opens in new tab) May 27, 2026 · 84 points, 105 comments (fetched 2026-10-15)
- Web: help.delduca.org ↗ (opens in new tab) May 27, 2026
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