1. Pinned Every Satellite Above Me in a Terminal A small C program that reads a USB GNSS receiver and shows every satellite it can hear, across six constellations.
  2. Pinned A Reverse Shell from an Online Compiler How a stdin box on Programiz dropped me into a shared container full of other people's code, including a live scam.
  3. Pinned Hiding Downtime Behind a Proxy How nginx keeps an upload going while the backend behind it is down.
  4. Pinned Pushing a Kubernetes Cluster to Its Limits Two k3s nodes, an autoscaler and k6, pushed until the CPU ran out.
  5. Pinned Writing a Chess Engine in C Bitboards, alpha-beta search and a hand-tuned evaluation.
  6. Building a bspwm Rice From Scratch Sakura Line, my Arch desktop. One palette rendered into fourteen tools and every widget I built around it.
  7. Turning My Phone Into a Linux Webcam A Rust server and an Android app that make a phone a webcam and mic on Linux.
  8. Self-Hosting on a Raspberry Pi Everything I hosted at home, fronted by a 3 W Raspberry Pi.
  9. Firewalls and NAT on Linux Routing, NAT and an allow-list firewall across three VMs.
  10. An Authenticated Chat Server in C Needham-Schroeder logins and group keys the server never sees.
  11. Building an Encrypted File Copy in C AES-256 and HMAC over netcat, with verify-then-decrypt.
  12. Encrypting Files and Connections eCryptfs, mutual TLS with OpenSSL and NFS wrapped in stunnel.
  13. Access Control Lists From Scratch in C Setuid binaries, extended attributes and a tiny sudo.
  14. An IPsec VPN with LibreSwan A site-to-site tunnel between two gateways, authenticated with certificates.