Project ideas from Hacker News discussions.

An overview of how our family is prepared

📝 Discussion Summary (Click to expand)

Theme 1 – Practical water and food storage
Many commenters emphasize simple, repeatable habits for keeping supplies usable: rotating containers, treating water with bleach, and stocking shelf‑stable foods.
- “Every daylight savings time, I rotate my stored water. I empty out my containers, refilling them with, then add 7 drops of bleach per gallon.” – zikduruqe
- “You rotate it every ~6 months… The old stuff can be used to water house plants or your garden.” – throw0101d (citing CDC guidance)
- “One is to have cheap dry food plus some canned food in 5 gallon buckets… You need roughly 1 pound of food per person per day.” – cameldrv
- “Mine is just a shelf of Chef Boyardee and Campbell’s. I eat one or two a week as regular lunches, to rotate stock.” – myself248

Theme 2 – Community cooperation outweighs isolated prepping
Several users argue that good relationships with neighbors and mutual aid are far more critical than hoarding supplies alone.
- “Absolutely reliably the best way to increase your chance of survival in a situation like this is to have good relations with your neighbours in a good community with high trust.” – sgt101
- “In those early days post storm, I had neighbors regularly knocking on my door to make sure I was OK and I had enough food and water… But the community came together, and never once did I think ‘man I really wish I got into prepper culture’.” – CodingJeebus
- “The most important preparation: be friendly enough with your neighbors that you look out for each other.” – bluGill
- “Contrary to urban legends (and fictional entertainment), in times of disaster humans generally pull together.” – throw0101d (linking to A Paradise Built in Hell)

Theme 3 – Focus on realistic, local threats rather than extreme apocalypses
Preppers are urged to tailor preparations to probable events (storms, power outages, short‑term disruptions) instead of planning for societal collapse.
- “It feels like you're suggesting prepping for a Shit Hits the Fan type scenario, which the OP post explicitly says is unreasonable.” – zephyrthenoble
- “I agree with OP that major collapse is not a likely/reasonable thing to prep for… those who think they are prepping for it are not prepping the right things.” – bluGill
- “Prepping should be local. Here in Scotland the things I would prioritize are snowstorms… and high winds.” – pjc50
- “Is there a plausible scenario where having 2 weeks of water does anything more than having a weeks worth? I feel like after a week you're either getting evacuated, the government is delivering supplies, or large parts of the country are not functioning.” – dw_arthur
- “Zombie apocalypses are a fun meme, but a broken city water main or an ice storm can be quite disruptive.” – throw0101d


🚀 Project Ideas

PrepPulse: Automated Emergency Supply Rotation & Reminder

Summary

  • Sends scheduled reminders and logs for rotating emergency water, food, and supplies (e.g., checking tire pressure, sump‑pump tests) based on daylight‑savings or custom intervals.
  • Core value: removes guesswork and ensures supplies stay fresh without manual tracking.

Details

Key Value
Target Audience Homeowners, renters, preppers, families wanting low‑effort readiness
Core Feature Calendar‑integrated reminder engine with checklist templates (water rotation, bleach dosing, spare‑tire check, sump‑pump test, pantry FIFO) and optional photo proof
Tech Stack React Native mobile app, Node.js/Express backend, PostgreSQL, Twilio/SendGrid notifications, optional Wear OS widget
Difficulty Medium
Monetization Revenue-ready: subscription $3/mo or $30/yr for premium templates & cloud sync

Notes

  • HN commenters said: “We’ve been trained to do this activity twice a year. Why not add a couple of more checkboxes?” – showing demand for expanded checklists.
  • Others noted: “I really like the daylight savings thing,” indicating a ready habit to hook reminders onto.

NeighborReady: Hyperlocal Preparedness Network

Summary

  • A private, invite‑only neighborhood app where residents list skills, supplies (e.g., generator, ham radio, water filter), and emergency plans; enables mutual‑aid requests and verification of trust during disasters.
  • Core value: turns latent community goodwill into actionable, verified support networks when infrastructure fails.

Details

Key Value
Target Audience Suburban/urban residents, CERT members, neighborhood watch groups
Core Feature Map‑based directory with skill tags, supply inventory, secure messaging, and offline‑first sync for when internet is down
Tech Stack React web + PWA, Firebase Firestore (offline), Google Maps API, Signal‑protocol encrypted chats, optional LoRa mesh for local communication
Difficulty High
Monetization Revenue-ready: freemium; basic free, premium $5/mo for advanced analytics & emergency broadcast

Notes

  • HN users emphasized: “The most important preparation: be friendly enough with your neighbors that you look out for each other.”
  • Another noted: “A large number of people working together will be much more likely to find solutions than a few isolated individuals,” highlighting desire for coordinated aid.

AquaGuard: Smart Water Storage Monitor

Summary

  • IoT device that clips onto water storage containers (barrels, tanks) to measure level, temperature, and chlorine residual, sending alerts when water approaches stale thresholds or needs bleach/top‑up.
  • Core value: automates the “rotate every ~6 months” and bleach‑drop chore, giving confidence that stored water stays potable.

Details

Key Value
Target Audience Preppers, RV owners, off‑grid households, anyone storing emergency water
Core Feature Sensor probe (ultrasonic level + ORP/chlorine sensor) + LoRa/Wi‑Fi gateway, mobile app showing real‑time stats, push notifications for rotation, bleach dosage calculator
Tech Stack ESP32/STM32 firmware, LoRaWAN or Wi‑Fi, AWS IoT Core, React Native app, DynamoDB for historical data
Difficulty Medium‑Hard
Monetization Revenue-ready: device $49 + optional cloud service $2/mo

Notes

  • HN comment: “Every daylight savings time, I rotate my stored water… I empty out my containers, refilling them, then add 7 drops of bleach per gallon.” Shows the manual chore people want automated.
  • Another noted: “The old stuff can be used to water house plants…” indicating a need to know when water is stale before repurposing.

Read Later