hi, i’m josh

Welcome to my blog. I write about tech stuff.

A little bit about me, I am an undergraduate student at NTU Singapore studying Electrical and Electronics Engineering. I am currently working on castletown, an HTTP server that helps you spawn rootless containers as sandboxes. You can find me often contributing to etcd, a distributed key-value store that is a core component to Kubernetes. I am interested in Distributed Systems, Container Technologies, Cloud-Native, and DevOps.

Linux Namespaces From Inside the Kernel

A deep dive into how namespaces actually work inside the Linux kernel.

January 6, 2026 · 13 min · Joshua James