Nick Templeman sat in his office in Somerset, surrounded by the evidence of a portfolio career built on spotting gaps others missed — domiciliary eye care for care homes, social media for local business, COBOL modernisation for banks too afraid to upgrade. He'd built 26 businesses. But something was different this time.
The UK Defence AI Strategy had just been published. Nick read it cover to cover. The gap was obvious: Britain had NO sovereign defence AI capability. Everything was American (Palantir, Anduril) or European (Helsing). Nothing was British. Nothing was open. Nothing covered more than a fraction of the 12 domains a modern defence force needs.
"I can build this," he thought. Not a company — an operating system. Open source. Sovereign. Multi-domain. The Linux of defence AI.
He incorporated CSOAI Ltd that week. Companies House 16939677. He wrote the first AGENTS.md — the charter that would govern the entire build. He deployed SOV3 v1 on a GCP VM — 12 tools, basic, but they worked. The first SIGIL receipt was emitted. The chain had begun.
100 days later, DEFONEOS launched. 133 pages. 30 MCP servers. 188+ SOV3 tools. 49K+ cryptographic receipts. 12 domains. 33 hives. One sovereign OS. Built by one man and his AI.
This is not the end of the story. This is the beginning.