How to Self-Host Vaultwarden on Contabo (2026): The Cheapest Plan Is Enough, the Lock-Down Steps Are Not Optional

Self-host Vaultwarden on Contabo: plan, setup and backups, SiftGuide guide

Self-host Vaultwarden, the Bitwarden-compatible password server, on Contabo in 2026: why the entry Cloud VPS 4 is plenty, the official Docker Compose + Caddy install, the five lock-down steps (HTTPS, closed sign-ups, hashed admin token, no ports past UFW, off-server backups), and where Contabo’s own tutorial is out of date.

Kimi K3 and the Unverified Hotel Claim

A widely circulated claim asserts that Moonshot AI’s Kimi K3 model, integrated through MCP to design software, “designed” a $31 million hotel with over 190 rooms in nine days using a single engineer—replacing three engineers’ six-week effort. The cost reportedly fell from $47,000 to $10,500, and site change orders dropped 60 to 80 percent. The … Read the guide →