kreativarc.com is not a trendy new AI startup. It’s a personal platform — part lab, part playground, part infrastructure testbed — where I build and test ideas without constraints. The name? “Kreatív arc” is Hungarian slang for “creative guy” — as in, someone who’s always building something. Something useful, something clever — occasionally something entirely pointless, but at least educational.

That’s more or less what I do:

explore new ideas
build functional prototypes
and refine everything from infrastructure to frontend — while documenting what I learn

Why self-host?

Because two things matter to me: learning and control.
This isn’t a throw-it-on-Vercel-and-forget-it project.
It’s a low-cost, fully owned stack — designed from the ground up to support rapid experimentation without vendor lock-in.

Design goals:

Cost-efficient. Hetzner VPS + Docker is orders of magnitude cheaper than AWS for small projects
Fast to deploy. I want to push PoCs weekly — not spend weeks wrestling CI/CD
Scalable. The stack should support growth if an idea gains traction
Secure. Admin interfaces are never exposed publicly. Cloudflare Tunnel + Access takes care of that

What’s under the hood?

If it can be done in TypeScript and augmented with AI, I’m likely doing it that way.

Frontend

Next.js + MUI – solid UI performance and component consistency
tRPC + React Query – end-to-end type safety, no boilerplate REST

Backend

Node.js + tRPC + Zod – type-safe APIs and clear validation
PostgreSQL + Prisma + pgvector – relational + vector search combined
LLM integration:
- OpenAI
- Langchain
- LangGraph

Use cases:

Document ingestion and preprocessing
Agent-driven workflows
Structured outputs from unstructured content

Testing

Jest for unit and integration tests
AI-based E2E agent for validating non-deterministic responses

🔁 Workflow orchestration

Temporal handles:
- retries
- scheduling
- long-running pipelines
- observability and isolation

Example workflows:

Scraping new URLs
LLM-powered data extraction and embedding
Updating vector DBs
Generating structured content from semi-structured sources

What to expect from this blog

No clickbait. No “10x your productivity with VSCode extensions” fluff.
Just:

real PoC applications with AI integration
real-world infrastructure setups
honest lessons from hands-on builds

What is kreativarc.com?