The Stack Overflow Podcast Why rent a cloud when you can build one?
21 snips
Oct 17, 2025 Andrei Kvapil, the founder of Ænix and a core developer of CozyStack, shares his expertise in Kubernetes and virtualization. He discusses building a private cloud from scratch and highlights the advantages of Kubernetes' declarative API for simplifying cloud operations. Andrei explores the importance of open-source solutions in achieving digital sovereignty and delves into networking challenges in Kubernetes environments. He also touches on innovative storage options and the need for robust user management in cloud systems.
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Managed Services Over Raw VMs
- CozyStack treats managed services as the primary product rather than raw VMs.
- The platform is open source and built to deliver cloud-like managed services on top of Kubernetes.
Use A Minimal Uniform OS Image
- Use a minimal, consistent OS image to ensure reproducibility across environments.
- Andrei recommends Talos Linux to bake required kernel modules and guarantee uniform behavior.
Virtualization Choice Shapes Cloud Design
- Decide early whether you provide traditional virtualization or cloud-native services.
- Traditional hypervisors focus on VM lifecycles, while cloud patterns expose managed resources and automation.