How to vibe codeGranola

Prerequisites

• macOS + Xcodefree

  Required for compiling native desktop audio capture bindings and UI menus

• Node.jsfree

  Runtime for Tauri frontend build system and backend services

• Anthropic API Keypay-as-you-go

  Powers the AI notepad enhancement and cross-meeting chat reasoning

AI coding tools

• Claude Code

  Best-in-class agentic coding tool for scaffolding multi-file native/web hybrids and wiring backend services

• Cursor

  Ideal for iterative UI work on the notes dashboard and markdown editor components

Build guide

1. 01Scaffold Tauri Desktop Shell & Audio Hook Foundation

   Initialize a Tauri v2 project combining a web frontend with a Rust backend. Implement OS-level microphone and system audio capture hooks to record raw PCM audio buffers into temporary WAV files.

   Create a new Tauri v2 project configured with a Next.js frontend and a Rust backend. Write Rust native commands using CoreAudio (macOS) or WASAPI (Windows) to capture combined system audio and microphone input into a local WAV file when triggered. Expose Tauri IPC commands to start and stop recording, returning the file path upon completion. Ensure robust error handling for OS permission prompts regarding microphone and screen/audio recording access. Verify compilation and test the audio recording loop locally.

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2. 02Integrate Transcription Pipeline

   Connect the recorded audio output to OpenAI Whisper API or Deepgram for fast, accurate speech-to-text conversion upon meeting completion.

   Build a Node.js transcription service module that takes a local audio file path and submits it to the OpenAI Whisper API or Deepgram API with timestamp options enabled. Handle multipart form uploads securely and return a structured JSON transcript containing timestamped utterances and speaker labels. Add retry logic for network drops and output the parsed transcript to the local SQLite database.

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3. 03Calendar Sync & Brief Generator

   Integrate Google Calendar and Microsoft Outlook APIs to automatically detect upcoming meetings and fetch attendee history.

   Implement OAuth authentication routes for Google Calendar and Microsoft Graph. Create a background sync service that polls upcoming calendar events for the authenticated user, extracts attendee metadata, and queries past meeting notes in Turso to construct a pre-meeting brief prompt. Display these briefs in a dedicated dashboard view prior to meeting start times.

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4. 04AI Notepad & Transcript Merging Engine

   Build the split-screen meeting notepad where users type manual bullet points while audio records in the background, merging instantly with the transcript via Claude upon meeting end.

   Build a React-based meeting workspace interface in Next.js featuring a real-time markdown notepad on one side and a live or post-meeting transcript viewer on the other. When the user clicks 'End Meeting', send the raw user bullet points and the full Whisper transcript to an API route powered by the Anthropic Claude API. Instruct Claude to merge sparse notes with transcript context to generate polished meeting notes, action items, and a follow-up email. Render the output cleanly in the UI with one-click copy and export actions.

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5. 05Cross-Meeting RAG & AI Chat (Granola Chat)

   Implement vector embeddings for all stored meeting notes and transcripts, enabling semantic search and conversational chat across all historical meetings.

   Set up vector embeddings generation using OpenAI or Anthropic embedding endpoints for all saved meeting transcripts and enhanced notes, storing vectors in Turso or a local SQLite vector extension. Build a 'Granola Chat' sidebar interface where users can type natural language queries across their entire meeting history. Implement semantic search retrieval-augmented generation (RAG) to inject relevant past meeting excerpts into the LLM context window and stream conversational answers back to the user.

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Cost vs paying for Granola