Stack
How our one-operator venture studio maps infrastructure to OS phases — reference for operators, not a tool catalog or hire funnel.
Why this stack
Every tool inside the studio is self-hosted or API-first so squads can automate without waiting on new procurement.
How it evolves
We audit quarterly and swap components fast—anything that slows launch cadence gets replaced or automated.
Everything runs on one Hetzner VPS managed by Coolify. No managed databases, no SaaS overhead.
Coolify
Self-hosted PaaS that manages all containers, env vars, and deploys on the Hetzner VPS.
Hetzner
CX32 VPS in Frankfurt. ~150 kr/month. Runs everything — n8n, LiteLLM, Minio, Umami, OpenClaw, Qdrant.
Minio
S3-compatible object storage for draft files, keyword JSONs, and performance insight data.
n8n runs 23 active workflows. Every schedule, API call, conditional branch, and Telegram notification.
n8n
Self-hosted workflow engine. Handles keyword research, content generation, publishing, analytics, and error monitoring.
Telegram
All notifications and approvals arrive here. Inline buttons for approving EIK articles without opening a browser.
OpenClaw
Webhook publish server. Receives article payloads and commits markdown to GitHub — one HTTP call per publish.
Paperclip
Governed agent workflows with spend gates. Strategy and cost reviews surface as signals — not autonomous executives.
LiteLLM proxies all model calls. Gemini 2.5 Flash runs article generation for 6 sites. Groq handles keyword scoring. Costs tracked per site.
LiteLLM
Self-hosted LLM gateway. Routes to Groq, Gemini, or other providers. Tracks spend. Single endpoint for all models.
Groq
Fast inference for keyword scoring and EIK article generation. Llama models. Free tier covers daily usage.
Gemini
Gemini 2.5 Flash is the primary article generator for 6 sites — TUR, TAN, TAF, TPR, THA, THB. Large context window, routed via LiteLLM.
Qdrant
Self-hosted vector DB for semantic search and RAG experiments on article archives.
PostHog tracks Focus funnels across studio and venture sites. Weekly review surfaces conversion and CTA evidence.
PostHog
Product analytics and funnel tracking. CTA clicks and venture card engagement — filter by site property.
IndexNow
Instant URL submission to Google and Bing after every article publish. No waiting for crawlers.
Listmonk
Self-hosted newsletter platform. Subscriber list synced with Resend for transactional delivery.
More context
Tool catalogs and cost breakdowns live here and on /stack — not the studio homepage. For operating-model context, start with Field Notes or the venture studio OS essay.