It'd be awesome if there were more dev posts about hooking into the node runtime, about how to layer in observability especially of code you don't control. I'v

It'd be awesome if there were more dev posts about hooking into the node runtime, about how to layer in observability especially of code you don't control. I've occasionally peaked at dd-trace-js. The last two years seem to have been a major overhaul of the whole Node observability core, quickly percolating to the whole ecosystem, with diagnostic channels becoming a thing & everyone rebasing their approach stop it. That's a huge part of the picture, I'd wager, for how info gets recorded. https://nodejs.org/api/diagnostics_channel.html https://nodejs.org/api/diagnostics_channel.html But also, what Node offers for hooks, how we can observe node & various libraries; there's gotta be hooks & techniques up the wazoo to do that. I don't have any clue how application monitoring libraries do it. JS allows a lot of cool monkey patching but man, but folks (to my chagrin) tend to design much tighter surfaces libraries than in the past. (Personally I find strong encapsulation to be an unfortunate hard bound to force on others.)