cairn
civilization in a box. runs on sunlight.
civilization in a box. runs on sunlight.
a complete ai-powered knowledge system. offline. modular. solar-powered. field-repairable. ask it anything about survival, medicine, engineering, agriculture, communications, or how to restart civilization. it'll walk you through it, step by step.
cairnOS + content library. runs on any pi 5 or x86 hardware you already own.
from $39
startopen BOMs, free guides, STL files. every design published. complete build docs.
free + parts
buildengineered modules. premium materials. tested, calibrated, ready to deploy.
from $99
shopsame knowledge. same ai. your choice how you get there.
complete ai knowledge system.
add processing power. same board, same parts.
7-inch LCD touch. color, fast, affordable.
sunlight-readable. zero standby power.
100Wh LiFePO4 + 30W solar panel.
LoRa mesh + SDR scanner + WiFi.
8 solar-powered perimeter nodes.
soldering iron, multimeter, every adapter.
compass, mesh, alerts, GPS. on your wrist.
retractable cables. plug in, scan, copy.
briefcase HQ. open the lid, everything's live.
mechanical, QMK, amber backlight.
integrated all-in-one builds. screen, keyboard, compute, battery — one unit. grab it and go.
7" screen + mechanical keys. thick hardcover book size.
10" screen + trackpad. briefcase opens flat.
touch-first. magnetic keyboard detaches. lightest option.
the archive on a USB. plant the seed of knowledge.
core + arc + keyboard. you're on the path now.
core + view + arc + signal. the real field experience.
ridge + web + forge. full awareness.
everything. in a shell. the fortified center.
8-node 64GB cluster. civilization-grade ai.
one ai. every domain. adapts to your skill level.
medical. agricultural. engineering. navigation. communications. repair. rebuilding.
no subscriptions. no cloud. no company needs to exist for your cairn to keep working. you buy it. you own it. forever.
we believe in open source and self-reliance. every design is published. every BOM is available. every line of code is open. because self-reliance means you don't need our permission to save your own life.