Lunares — Modern Lighting e-commerce
A fast, SEO-optimised online store for modern lighting — 100,000+ indoor and outdoor lamps, fixtures and home décor, delivered across Europe.
Visit site Kraków, Poland · Software & AI
Software engineering, focused on your goals.
A lean software studio from Kraków, Poland. We build pragmatic web products and weave AI into them — shipped simply, tested thoroughly, and always ready to change.
How we work
Embrace change
Lean design stays ready for your next requirement — not just today's.
Amplify learning
We (ab)test ideas as early as possible and let real data decide.
Share knowledge
The border between your team and ours blends quickly. We teach as we build.
Value simplicity
Simple means fast, reliable, and cheap to maintain.
What we do
We are a small team of senior software engineers. Our mission is to reach your goals in a simple, cost-effective way using modern technology. Working in an Agile, Lean way lets us pivot early and adapt as requirements change — while test-driven development keeps your application robust and a joy to maintain. Increasingly, that means designing AI into products thoughtfully, where it earns its place.
Tech we reach for
- Ruby on Rails
- JavaScript
- PostgreSQL
- MongoDB / NoSQL
- AWS
- CI/CD & DevOps
- LLM & AI integration
- AI agents
- Responsive / mobile web
Our work
Products we build and run — we are our own best customers.
Insureo — Online business insurance
A Polish platform to buy business and professional insurance entirely online — company & professional liability and property cover, quoted in minutes.
Visit siteFrom the blog
Notes on software engineering, AI, and building products.
1 min read
▶ Video
What we learned shipping AI agents to production
Agents are fun in a demo and humbling in production. Here are the guardrails that made ours reliable enough to trust.
6 min read
Fine-tuning vs RAG vs prompting: choosing in 2025
There are three ways to make an LLM do what your application needs — prompting, retrieval, and fine-tuning — and teams routinely reach for the wrong one. They solve different problems, and the costs differ enormously. A trend post on what each is actually for, and a decision order that saves you from over-engineering.
6 min read
Kubernetes for the small team: worth it?
Kubernetes is the industry-standard way to run containers — and a large operational commitment. An honest look at what it gives you, what it costs, and whether a small team building a Rails app actually needs it (usually: not yet).