The Site

A working model of community infrastructure at property scale — four zones, four integrated layers, one marginal lot in Taylorsville, Utah.

The Zone Map

Each zone of the property maps to a community archetype: the house as commons (coordination, inference), the dome as farm (production), the pergola as market garden (exchange), the triangle as wild edge (biocontrol, foraging, transition). The layout isn't decorative — it's an argument about how these functions relate and how they could be distributed across a neighborhood if the pattern were to replicate.

The Physical Layer

The house is a 1,500 square foot single-family home, retrofitted with heat pumps (heating, cooling, water), solar, and modern insulation. Paid off. Operating costs are low enough that the site can absorb experimentation without financial pressure.

The dome is a 26-foot Growing Spaces geodesic on an ICF foundation, with a ground-coupled air-to-heat exchange system (GAHT) for passive climate control. The earth under the dome stores summer heat and releases it through winter — no supplemental heating required down to around -10°F. At the north end, a pond holds a Nymphaea caerulea (blue lotus), which names the planned replication organization.

The growing system is a 1,080-cup wicking setup on shelves — low labor once established, capable of producing all warm-season starts needed for the immediate neighborhood. IPM and biocontrol aren't separate programs; they're part of how the production system is monitored. The sensor data makes intervention decisions legible rather than intuitive.

The pergola and triangle round out the property: the pergola as the exchange layer (plants, harvest, market), the triangle as the managed wild edge where biocontrol habitat, foraging margin, and transition zone overlap.

The Sensor Network

Environmental sensors span all four zones: temperature, humidity, soil moisture, light, and CO₂ in the dome; weather and soil conditions across the outer zones. The network runs on LoRa mesh with a HaLow backbone — low-power, long-range, and capable of operating without internet infrastructure.

The data serves two purposes. Internally, it feeds into the production schedule and makes IPM decisions traceable. Externally, it connects to citizen science networks — the site participates in distributed monitoring that's more useful at neighborhood scale than at individual property scale.

The Community Mesh

A Meshtastic and Reticulum mesh connects the property zones and carries services across them. It's off-grid capable — the network stays up when internet access goes down. The hardware cost per household replication is around $35.

The plant reservation system is an early application of the mesh services layer: a distributed community market that doesn't require a third-party platform to function. Orders come in, pickup slots are scheduled, the exchange happens locally.

Local Inference

A pair of repurposed datacenter GPUs in a back room runs AI models locally — large language models, voice transcription, image processing — without cloud connectivity, subscriptions, or data leaving the premises. The total hardware cost was $2,000–3,000.

The inference layer is the natural language interface to the rest of the systems: query the sensor history, pull the production schedule, ask about a pest you found in the dome. It makes the data generated by the other three layers answerable in plain language. It's not a product or a showcase — it's how you talk to the greenhouse.

Replication

Thistlebridge is a proof of concept. The goal is a pattern that transfers: not to scale this single site, but to develop documentation and trained people who can establish similar infrastructure elsewhere. Each zone function has a community analogue. The mesh hardware is cheap. The knowledge to combine it is the actual bottleneck.

Nymphaea is the planned organization for this work — named after the blue lotus in the dome pond. The approach is apprenticeship-based: people work at Thistlebridge, learn the systems through use, and eventually help establish sites in their own communities. Towpath, a second site on nearby leased land, is the planned first test of whether the pattern transfers to purpose-built rather than retrofitted infrastructure.

Nymphaea will be structured as a 501(c)(3) once the model is proven. Until then, support flows through Thistlebridge directly.

Interested in supporting this work? See how to help, or reach out directly to discuss larger involvement.

This site was developed with LLM assistance. We're testing practices, not just describing them.