Descript

Build me a text-based clip cutter to replace Descript for simple edits. Requirements: - A local web app: Node + Express with a plain JS frontend, binds to localhost. - I drop an audio/video file into ./media/; the app transcribes it with whisperX for word-level timestamps, or the OpenAI Whisper API if a key is in .env. - The transcript renders as clickable words. I select and delete words or whole sentences; deleted spans go into a cut list I can undo from. - Render: build one ffmpeg trim/concat command that removes the cut spans from the original and writes ./output/<name>-cut.mp4 (or .mp3 for audio-only). - Pad each cut by about 80 ms so words are not clipped mid-syllable. - Save each project as JSON next to the media file (transcript + cut list) so an edit can be reopened later. - No accounts, no telemetry; everything stays on my machine except the optional Whisper API call. - Out of scope: multitrack timeline, overdub or AI voices, filler-word auto-removal, cloud anything. This is a cutter, not an editor. - README: installing ffmpeg and whisperX, and a warning that local transcription of long video is slow on CPU.