A friendly, open-source way to raise mushrooms on locally harvested logs — plus a joyful community sharing what works, everywhere.
The idea
A working system anyone can build, and a growing library that spreads the method and connects the people already doing this. The hardware is the seed; the network is the forest.
Fresh-cut local hardwood, inoculated with mushroom spawn, left outdoors to do what wood and fungi have always done. Low input, low fuss, years of harvests from a single log.
A cheap, open controller mists your logs when they're thirsty — making fruiting more reliable. But the logs still grow without it. Nothing here depends on the electronics.
Every guide, wiring diagram, and firmware file is free and open. We connect to allied initiatives so local knowledge compounds instead of scattering.
Open hardware
A backyard-grade misting controller built from common, inexpensive parts. Full bill of materials, wiring, and firmware are open — and coming to this repository.
An ESP32 board, a humidity sensor, a relay, and a solenoid valve on a garden misting line. Assembles in an afternoon, no soldering needed.
Full BOM soon →Reads humidity on a schedule, mists below your threshold, and logs your yard's microclimate so you learn what it does across the seasons.
Firmware soon →If the electronics die, your logs are fine — hand-soaking still works. Nothing creates a dependency you can't walk away from.
Why this matters →Printable enclosure and log-rack brackets, sized for common backyard layouts. STL files live in the open repository with everything else.
Files soon →The repository
Step-by-step guides for each species and climate. We start with the friendliest log mushroom there is.
Sourcing logs, inoculating with spawn, sealing, stacking, and forcing your first fruiting. The complete starting point.
Read the guide →Faster-colonizing species and the totem method for softer or smaller wood. Drafting now.
Get notified →The network
Mycology clubs, food-sovereignty groups, permaculture networks, and open-hardware growers are already at work. We connect to them and grow the map together.