Superwhisper

Build me a push-to-talk dictation tool for macOS to replace Superwhisper. Requirements: - A global hotkey (default: hold right Option) records my mic while held, stops on release. A small Swift menu bar app or a Hammerspoon script, pick the simpler to ship. - Record with ffmpeg (avfoundation) to a temp wav, transcribe locally with whisper.cpp (small.en by default, model path in a config file). Works fully offline, no cloud speech APIs. - Paste the result into whatever field has focus (simulate Cmd+V via CGEvent or osascript, then restore my previous clipboard). - Optional cleanup mode on a second hotkey: send the transcript to an LLM (key in .env) to fix punctuation and drop filler words, then paste. If no key is set, this mode just does a plain paste. - Menu bar icon shows idle/recording/transcribing; clicking it lists the last 10 transcripts with copy buttons. - Append every transcript to ~/Dictation/YYYY-MM.md with a timestamp, and delete the audio after transcription. No accounts, no telemetry. - Out of scope: per-app presets and custom vocabulary tuning. One good general mode. - README: mic + accessibility permissions to grant, how to download the whisper model, and a note that the first run will trigger macOS permission prompts.