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Oxygen and Life Support
A powered greenhouse keeps its interior breathable by spending Nero Flux and Nutrient. Oxygen flora and the bioreactor let a farm supply that life support biologically instead, closing the loop.
Oxygen flora are ordinary food-species crops that carry an oxygen_production value. Grown inside a
greenhouse, each one contributes oxygen scaled by its maturity (a seedling contributes nothing; a mature
plant contributes its full base) plus its oxygen-output genetics trait. Two built-in
flora ship — Earth Algae and Greenxertz Oxyvine — and datapacks can flag any food species as flora with an
oxygen_production field.
The greenhouse sums the oxygen of its interior crops, clamps it to a hard per-volume cap (so a swarm of plants can never yield unlimited free upkeep), and uses it to offset upkeep: oxygen covers Nutrient demand first, then reduces the NF cost. A well-planted greenhouse can become largely self-sustaining. Oxygen is a cost reducer — it never gates growth — and the controller's right-click status now shows the current oxygen figure.
The Bioreactor (the Oxygen Plant machine) turns farmed Biomass into Nutrient fluid, spending NF, and periodically yields a recoverable Crop Waste byproduct. The conversion is deliberately lossy, so the farm → biomass → nutrient → flora → oxygen loop can never mint net items or energy from nothing. Piping that Nutrient back into powered beds feeds more oxygen flora, which in turn lower the greenhouse's upkeep.
Greenhouse oxygen is published through a public seam (OxygenApi). When Nerospace is installed it can
consume those contributions to feed its atmosphere/terraforming truth; standalone there are no consumers and
the greenhouse simply uses this local life-support model. Nothing here depends on Nerospace being present.
See also: Greenhouse Construction, Genetics, Fertiliser.