Adopt Terraform + hybrid repo structure (new sv0-infrastructure for cross-cutting, existing in-repo modules stay) + Terraform Cloud free tier for state and runners. Design modules so each customer tenant can be stamped out as an independent stack for dedicated-deployment clients.
Observability stack selection for sv0-platform: evaluates 10 options (Grafana Cloud, self-hosted LGTM, Datadog, BetterStack, Axiom, SigNoz, New Relic, Honeycomb, Cloudflare, stitched-minimum) against cost, agentic access (MCP availability), portability across Hetzner/Azure-VM/AWS-VM, and free-tier allowances. Pick: Grafana Cloud free + BetterStack free + grafana/mcp-grafana.