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  • THE DEVICE
  • FIELD NOTES
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    Survival Codex
    • THE DEVICE
    • FIELD NOTES
    • LIBRARY
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    — FIELD NOTES —

    Field Notes

    Written knowledge from the same domains the device carries offline. Readable here, stored on it.

    ALLSTAY ALIVEREBUILDPRINCIPLES
    REBUILD

    Why Ground Insulation Kills Your Shelter Heat Retention, Even With a Fire

    A solid shelter and a burning fire can still leave you shivering if the floor is conducting your heat into the cold ground. Why ground in...

    27 Aug 2026
    REBUILD

    How Much Land Do You Actually Need to Be Self-Sufficient?

    The honest range is roughly a third of an acre to two-plus acres per person, and what you grow decides where you land in it far more than...

    31 Jul 2026
    REBUILD

    Food Preservation Methods, Ranked by Real Shelf-Life

    Six food preservation methods ranked by how long each actually buys you and what it costs to run, from drying and root cellaring to home ...

    29 Jul 2026
    REBUILD

    Root Cellars vs. Modern Food Storage

    Real extension-service temperature and humidity data for root cellar storage, compared honestly against refrigeration, freezing, and cann...

    29 Jun 2026
    REBUILD

    What Rebuilding After a Disaster Actually Requires

    The rebuild phase after a disaster is longer and quieter than the emergency, and the risks shift from sudden to slow: carbon monoxide, mo...

    24 Jun 2026

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    SURVIVAL CODEX · FIELD GUIDE 01 THE GRID-DOWN FIELD GUIDE FEMA · CDC · US ARMY

    FREE FIELD GUIDE

    The Grid-Down Field Guide

    309 pages of FEMA, CDC and US Army survival guidance in one book, with a map to every chapter. Free.

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