> Text-first, scriptable interfaces where tools do one thing well and can be composed

emacs

> Human-readable configuration in plain files, no XML or opaque binary blobs

emacs

> Predictable, minimal system design where you can understand what’s happening under the hood without chasing abstraction layers

Maybe emacs

> Manual pages that matter, and a userspace that favors understanding over wizard-driven opacity

Probably emacs. Do I care about man when there is info?