Unix & C Origins
From K&R to Dennis Ritchie and
Ken Thompson hacking UNIX onto a PDP in weeks.
Philosophy: do one thing well, and do it in C.
Shell & Unix-fu
sh, bash, zsh — pipes, redirection, tmux, grep,
awk, sed, find. Glue code of the gods, powered by the command line.
Networking & TCP/IP
Sockets, ports, TCP/UDP, packet captures,
traceroutes, and the art of “why the hell is this not reachable?”
SecDevOps & Blue/Red
Threat modeling, hardened configs, logs, SIEM,
blue-team vigilance and red-team mischief sharing the same pipeline.
C, Pointers & Systems
C as the universal systems screwdriver:
pointers, structs, segfaults, and talking directly to the OS
without training wheels.
Assembly & Internals
Registers, stack frames, calling conventions,
and understanding what the CPU actually does when you hit “run”.
Python & Automation
Scripting glue, quick APIs, log munching and automation.
When you need to ship something tonight, Python is the hustle.
Go & Concurrency
Goroutines, channels, small binaries,
and simple deployments. Perfect for CLIs, APIs,
and backend services that just keep running.
Rust & Safety
Ownership, borrowing, zero-cost abstractions.
When you want C-level performance but refuse to segfault ever again.
Node.js & Web Services
Event loops, Express, APIs, websockets.
Glue between browsers, dashboards, and backends that won’t shut up.
Apache, Nginx & HTTP
Virtual hosts, reverse proxies, TLS, logs, 80/443 wars,
and teaching the internet how to find your chaos.
Docker, Git & CI/CD
Containers, registries, git, branches, pipelines,
and shipping broken stuff safely until it isn’t broken anymore.