> This is a huge disparity from web development workflows where file watchers are prevalent—you save a file and instantly see the results of the change.

> Pigweed’s pw_watch module solves this inefficiency directly, providing a watcher that automatically invokes a build when a file is saved, and also runs the specific tests affected by the code changes. This drastically reduces the edit-compile-flash-test cycle for changes.

Eh, no thanks. Web dev environments can get away with this because the turnaround time is so quick, but even a medium sized embedded C++ project can easily take minutes to build, plus 30+ seconds to download, even with a debugger.

Please don't try to bring webdev workflows into the embedded space. This isn't javascript.