# How to Vibe Code Your Own Streak (and Stop Paying for It)

> Gmail CRM for High-Performing Teams

- Site: https://streak.com
- Category: CRM & Productivity
- Verdict: **Serious undertaking** (38/100 vibecodeable)
- Estimated effort: 3-4 months of part-time work

## Verdict

Build a standalone web CRM clone instead of trying to hack a browser extension into Gmail, or keep paying for the real thing. The single biggest catch is that maintaining a DOM-mutating extension inside Gmail's proprietary single-page application is an endless maintenance nightmare.

Attempting to clone Streak as an exact browser extension inside Gmail is a trap. Google updates Gmail's internal DOM structure frequently, which will break your extension injections on a regular basis. Furthermore, requesting sensitive Google OAuth scopes (like full Gmail read/write) for a personal extension triggers nightmarish app verification requirements and security reviews. A realistic personal clone must instead be built as a standalone web app that connects via API or imports data, dropping the direct Gmail DOM injection entirely.

### What you can't replicate

- Seamless inline rendering inside Gmail's production UI
- Google Cloud Partner status and native trust certifications
- Decade-long edge case hardening around email sync and threading

## What it does

Streak is a CRM and workflow productivity tool embedded directly into Gmail, turning the inbox into a customizable pipeline tracker with email tracking, mail merges, and AI assistance.

### Core features

- Spreadsheet-like CRM pipelines embedded in Gmail DOM via extension
- Email and link tracking via invisible pixels and rewritten links
- Mail merge with sequencing and personalization tags
- Shared contact databases with automatic data enrichment
- AI co-pilot for deal summaries, autofill, and natural language Q&A
- Task management, reminders, and file attachments linked to Google Drive

## The business

### Pricing

- Free: $0
- Pro: $49/mo
- Pro+: $69/mo
- Enterprise: $129/mo

### Funding

$2.25M raised.
- Seed Round (2012)
- Seed Round (Jan 19, 2018)
Investors: Y Combinator, Musha Ventures

Founded 2011.
Team size: 20-40.

## The hard parts

- Building and maintaining a browser extension that mutates Gmail's heavily obfuscated Closure-compiled DOM without breaking during Google updates
- Managing complex Google OAuth scopes across Gmail, Calendar, Drive, and Contacts with strict rate limits and background sync
- Real-time state synchronization for shared team pipelines and automatic email logging
- Asynchronous LLM pipeline architecture for email parsing, deal autofill waterfalls, and credit metering

## How to vibe code Streak

### Prerequisites

- Node.js (free): Required runtime for modern full-stack TypeScript web development.
- GitHub (free): Code repository and deployment linkage.
- Google Cloud Console Account (free): Required to configure OAuth credentials for Google Workspace API integrations.

### Recommended AI tools

- Claude Code: Best-in-class agentic CLI tool for scaffolding full-stack features, database schemas, and API clients across multiple files.
- Cursor: Ideal for fine-tuning complex UI components, spreadsheet tables, and pipeline views with direct diff reviews.

### Stack

- Frontend: Next.js
- Backend: Next.js API Routes
- Database: Supabase
- Auth: better-auth
- Payments: none
- Other: Vercel AI SDK, Resend, Tailwind CSS, shadcn/ui

### Hosting

- Vercel (Hosting the Next.js frontend and serverless API endpoints.): $0-20/mo
- Supabase (Hosting relational PostgreSQL data, row-level security, and realtime subscriptions for shared pipelines.): $0/mo

### Build guide

1. **Project Scaffolding & Database Schema** — Initialize the Next.js project with Tailwind CSS, shadcn/ui components, and Supabase client configuration for pipelines and boxes.

```
Create a new Next.js project with TypeScript, Tailwind CSS, and App Router. Set up Supabase integration using environment variables for URL and anon key. Define a robust relational database schema in Supabase with tables for 'pipelines' (id, name, user_id, settings), 'stages' (id, pipeline_id, name, position), 'boxes' (id, pipeline_id, stage_id, title, contact_info, custom_fields jsonb, created_at, updated_at), and 'activities' (id, box_id, type, content, metadata, created_at). Implement TypeScript interfaces for all database models and verify connection pooling.
```

2. **Authentication & Workspace User Management** — Implement authentication using better-auth with email/password and Google OAuth providers.

```
Integrate better-auth into the Next.js application supporting email/password sign-in and Google OAuth authentication. Configure the auth schema in Supabase to link users to organizations and pipelines. Create login and registration pages using Tailwind CSS and shadcn/ui components, ensuring protected routes redirect unauthenticated users cleanly.
```

3. **Spreadsheet Pipeline UI & Drag-and-Drop Board** — Build a data-dense spreadsheet and kanban hybrid view for managing pipeline stages and deal boxes.

```
Build a responsive pipeline dashboard in Next.js featuring a spreadsheet-like grid view and a kanban board view. Allow users to create custom columns ('magic fields' like last reply, stage duration), sort and filter rows, and drag-and-drop boxes between stages with optimistic UI updates. Ensure high performance with large datasets using virtualized tables where necessary.
```

4. **Google Workspace & Gmail API Integration** — Incorporate Google Workspace OAuth scopes to fetch user emails, threads, and contacts into deal boxes.

```
Implement Google Workspace API integrations using user-granted OAuth tokens to fetch recent email threads matching contact email addresses. Create a backend service worker route that synchronizes incoming messages and logs them automatically to the corresponding deal box in Supabase. Handle token refreshing and Google API rate limit backoff gracefully.
```

5. **AI Co-Pilot & Deal Summarization** — Integrate the Vercel AI SDK and Anthropic API to provide natural language Q&A, deal summaries, and automated field autofill.

```
Integrate the Vercel AI SDK with Anthropic Claude models to power an AI Co-pilot sidebar inside deal boxes. Build API endpoints that parse historical email thread text stored in Supabase to generate concise 3-bullet deal summaries, answer natural language questions with source citations, and automatically extract structured contact fields for CRM autofill.
```

6. **Email Tracking, Mail Merge, and Polish** — Add email open/link tracking pixels, mail merge sequencing, and transaction alerts via Resend.

```
Implement an email tracking system using unique 1x1 tracking pixels and rewritten link redirects that record opens and clicks in Supabase. Build a mail merge interface allowing users to upload CSV recipient lists, compose templated email sequences with variable tag replacement, and dispatch them via Resend API with daily sending limits and error logging.
```

### Cost vs paying

**Starting costs (one-time):**

- Custom domain name: $12 one-time
- Total: ~$12 one-time

**Ongoing costs (monthly):**

- Vercel Hobby / Supabase Free: $0/mo
- Anthropic API Credits (Personal AI Usage): ~$5/mo
- Resend Transactional Email: $0/mo
- Total: ~$5/mo

- Paying for the SaaS instead: $69/mo (Pro+ Plan)
- Build time: 45-60 hours
- AI tool credits: $20/mo (Claude Pro)
- Break-even: 1 month

## Sources

- [Streak Official Website](https://streak.com)
- [Streak Pricing Page](https://www.streak.com/pricing)
- [Streak About Us Page](https://www.streak.com/about)
- [Streak Security Policy](https://www.streak.com/security)