Answer first
A privacy-first local model stack starts by making the data boundary explicit. Then it adds the smallest capable local runtime, a model registry, local memory, adapters, evaluation cases, and release evidence.
Stack layers
| Layer | Purpose | ModelBreeder artifact |
|---|---|---|
| Data boundary | Defines what may remain local, what may be redacted, and what may be escalated. | Request contract. |
| Local runtime | Runs the selected model on browser, device, workstation, or enclave hardware. | Runtime artifact contract. |
| Model registry | Stores local models, checksums, model cards, and compatible parents. | File-backed registry. |
| Local memory | Stores local RAG indexes, embeddings, notes, and accepted examples. | Local memory package. |
| Adapter stack | Applies personal, team, or domain capability without retraining the whole base. | Genome record. |
| Evaluator cases | Measures utility, latency, privacy fit, and human benefit. | FitnessVector. |
| Release evidence | Explains why a descendant should be used. | Release packet. |
| Router | Chooses local specialist, no-op, or approved escalation. | Routing policy. |
Design principle
The stack should make private usefulness easy. A user should be able to see that local processing is not an afterthought; it is the default for sensitive niches.
LOCAL_MODEL_STACK = {
data_boundary: "local-first",
runtime: "browser | desktop | workstation | enclave",
model_registry: "hash-addressed artifacts",
memory: "user-owned local index",
adapters: "compatible deltas only",
evaluator: "frozen cases + human review notes",
release_packet: "evidence + rollback target",
router: "local specialist first, approved escalation second"
}Why the stack creates more products
Once this stack exists, a builder can make many local products by changing the niche and the evidence cases. The same base stack can support a meeting assistant, code reviewer, clinic note helper, field-service assistant, smart-home voice tool, or classroom lab.
Source reports used for this guide
These reports are preserved verbatim in the site archive. The guide above is an editorial synthesis and may narrow, qualify, or reorganize claims from the source material.