Day 01 is where we pour concrete: project structure, /api/v1, a real health endpoint, env-based settings, CORS for local dev, tests, and a Makefile so future-me doesn’t hate present-me.

Backend City is a CTRL+Strum series that explains backend engineering like a city.Zero Day is the charter — the rules, the roadmap, and the decisions that keep systems from collapsing later.

Networking for Humans — Tour Map Start here any time you feel lost. Each module is a stop on the tour — click, learn the mental model, then keep moving. This series is designed to fully support CompTIA Network+ concepts — but explained through a single, consistent mental model. Think of networking like g...

Module 0 is your orientation: learn the mindset that makes Network+ (and real troubleshooting) finally click.

Backstage chaos doesn’t stay chaotic for long — not when switches, MAC addresses, and VLANs are doing their jobs. In this Network+ On Tour session, we break down Layer 2 networking using real-world metaphors that actually stick.