Welcome to this week's Top 7, where the DEV editorial team handpicks their favorite posts from the previous week (Saturday-Friday).

Congrats to all the authors that made it onto the list 👏

@annavi11arrea1 had a yellow jacket infestation in her basement, which just so happened to be where she kept her favorite machine. The post introduces Peekyport, a JavaFX-based home network analysis tool that visualizes topology, scans ports, and surfaces security insights.

@lovestaco takes a deep dive into everything that happens under the hood when you run npm run dev, tracing the full journey from shell lookup and process spawning to Vite's esbuild pre-bundling, native ES module serving, and React Fast Refresh. The post gives developers a clear mental model of a workflow most run dozens of times a day without fully understanding.

@yechielk demystifies containers by building a working one from scratch in roughly 60 lines of Go. The post challenges the common misconception that containers simulate another computer, revealing them to be much simpler and a lot more interesting.