Context Design Co
BLITZBOX Lightning Fast AI · South African Engineered

Local-first AI on your hardware. Yours alone.

BlitzBox is a single-tenant AI substrate that holds all your business data on a Mac Mini at your premises. The cloud only handles licensing and credential rotation. Your data never leaves your hardware.

BlitzBox on a dark wood desk, with a gold protea sculpture and a traditional African basket — South African engineering
§ 02 — Architecture

Asymmetric trust, in one sentence.

┌─────────────────┐ ┌─────────────────┐ │ YOUR PREMISES │ ◀────── │ MOTHERSHIP │ │ (Mac Mini) │ outbound│ (Cloud Run) │ │ All business │ only │ License + │ │ data here. │ │ credentials. │ └─────────────────┘ └─────────────────┘ ▲ │ │ No inbound channel. │ (Anthropic, Gemini, │ No remote disable. ▼ Xero, Gmail — outbound) External APIs
"There is no kill command. Just credential expiry."

Subscription lapses don't brick your Box. They cause the mothership to stop issuing fresh license JWTs after 14 days, after which your Box gracefully self-degrades through a documented ladder — never beyond your reach.

BlitzBox with both faces visible — BLITZBOX mark and Context Design Co mark — proving the product is part of the CDC family
§ 03 — What ships

Four always-on modules.

Brain, Financial, Email, Compliance — all included in the base subscription. Optional Marketing, Social, and CRM modules activate later as in-app purchases.

Brain

Local agent fleet running Ollama models on your Mini. Decision cards, drafts, retrieval — yours to approve.

Financial

Xero reconciliation, ledger watching, anomaly flags. Read-only outbound; writes stay on the Box until you approve.

Email

Gmail/IMAP triage and drafting. Your inbox stays your inbox — only summaries and anonymized digests leave.

Compliance

POPIA-shaped audit trail, evidence pack generation, regulator-ready records. Always on, never optional.

§ 04 — Resilience

If you stop paying, you still keep your data.

The kill switch is the natural consequence of credential expiry, not a remote command. Your Box self-degrades through four stages over 28 days — and at every stage, you can still read and export everything.

FullAgents running, credentials fresh, all modules live
GraceLicense JWT expiring soon, warnings surface — 14 days
Read-onlyAgents off, content readable, exports available — 14 more days
Static archiveIndefinite read-only access; you keep the hardware

South African Consumer Protection Act §55–56 forbids bricking goods you've paid for. The degradation ladder is how we honour that without a single special case.

§ 05 — Pricing

One SKU. No tiered feature gates.

R30,000 upfront (hardware + commissioning)

R15,000 / month (license + credentials + updates)

A R5,000 refundable deposit via EFT reserves your commissioning slot. Balance invoices once we've scoped your Box on a call.

See full pricing →
BlitzBox on a polished steel pedestal — light, premium, single SKU

Ready to configure your Box?

Five minutes in the portal gets you an indicative quote. Karel personally confirms scope on a call before any balance invoice.

Configure your Box → Talk to Karel