Terminal Trove mentioned Matt Hartley's `netwatch` tool as its "tool of the week:" netwatch is a network diagnostic tool for the console, and it's pretty comprehensive, showing a ton of information about network traffic in a quite reasonable, useful interface.
Miasma is a new project in Rust that creates a maze of twisty passages, all alike, for AI scrapers. It's got documentation to protect "good" scrapers, and creates nonsense for "bad" scrapers, but the problem isn't as simple as "punish AI for existing."
Two recent articles tackle JSON querying performance from opposite ends: one applies automata theory to eliminate interpretation overhead at query time, the other kills a $500K/year language-boundary tax by rewriting a JavaScript reference implementation in Go. The methodologies are different; the lesson is the same.