Live
Cloud Coach Atlas
Certification prep with a daily plan, mastery tracking, and the next best study action.
- Multiple AWS certification tracks
- Cross-device progress sync
- Guidance without hosting courses
Thoughtful software, built from real problems
Useful software for work, learning, and everyday life.
DuReef turns complicated or neglected problems into focused software people can actually use. We are starting with better guidance for cloud learning. Better tools for maintaining meaningful relationships.
How we work
Principles behind every product
Clear positioning, proof in the product, and one obvious next step: not a wall of features or dark patterns.
Focused by design
Each product solves one job well: clear scope, calm UX, and no dark patterns.
Privacy-aware
Progress and personal data stay yours. We ship with explicit boundaries and honest defaults.
Built to ship
Small, reliable releases with documentation and reliability treated as product work.
Products
Focused tools for real workflows
Each DuReef product owns one job. Cloud Coach Atlas is live today; People Circles is in early development.
- Coming soon
People Circles
Keep your closest people close. A calm, private companion for your tribe of about 150, with circles, context notes, and gentle check-ins.
- Four circles for a tribe of ~150
- Local-first and private
- Gentle check-in reminders
About DuReef
Ideas turned into useful software
DuReef builds focused software from real problems. Started by Marko Durasic in Taipei, it focuses on products that reduce friction, help people learn, and make work and everyday life more deliberate.
Our first products are Cloud Coach Atlas, which helps people navigate technical certification without getting lost in scattered resources, and People Circles, a private tool for maintaining the relationships that matter.
Marko is a backend and cloud engineer who builds from problems he encounters himself. DuReef combines practical engineering, careful product thinking, and a long-term interest in technology that improves people’s lives.
Learning
Clear guidance through complex technical skills.Relationships
Private tools for maintaining meaningful connections.Engineering
Reliable backend, cloud, and automation behind every product.