Boxcryptor is a flexible and scalable encryption software for the cloud, that supports more than 30 providers (including OneDrive, SharePoint and an integration in Microsoft Teams) as well as NAS encryption on all platforms. It offers collaboration, audit, and management features that allow secure collaboration on files while being compliant with privacy regulations. Thanks to zero knowledge encryption, all company data is securely protected from third-party access.

I wanted to learn Kubernetes, but the options were either "build a local lab" or pay for expensive classes built around cloud environments. I wanted something you could just open and learn from. So I built a browser-based cluster simulation with lessons to follow along.

It behaves like Kubernetes, but it's just JavaScript under the hood. Enough to run kubectl commands, create resources, and watch their lifecycle play out. There's also a live cluster visualizer so you can see your nodes, Pods, and containers in real time.

Once you've covered the concepts, you can jump into CKA drills. Each drill is a standalone, time-boxed scenario that mirrors the real exam format: a broken cluster state, a concrete task, and a pass-or-fail outcome.

The goal isn't to simulate the exam. It's to build the reflex of diagnosing and fixing things quickly, so that when you sit the real exam, the commands and the reasoning are already automatic.