Left = your master résumé (edit & save permanently). Right = the version tailored for
this job.
Compare highlighting styles: /v1 · /v2 · /v3 · /v4(zero-JS)
Master résumé — saved permanently
This job — saved for this job only
CodeMirror editors with a line-level diff — both sides editable, highlights update live. Loads the editor from a CDN (needs internet).