# How to Vibe Code Your Own Close (and Stop Paying for It) > The CRM That Does the Work - Site: https://close.com - Category: Sales CRM & Communication - Platforms: Web app - Verdict: **Serious undertaking** (52/100 vibecodeable) - Estimated effort: 6-8 weeks of part-time building ## Verdict Build a personal single-tenant subset of the CRM and email/task loop, but keep paying for the production-grade WebRTC dialer and carrier infrastructure. Trying to clone Close in full as a solo developer means rebuilding complex real-time WebRTC VoIP routing, multi-channel carrier-compliant SMS workflows, and real-time email sync pipelines. While an AI coding agent can scaffold the Next.js frontend, Postgres schema, and basic CRM CRUD in days, the telephony infrastructure and asynchronous background agent orchestration will consume weeks of frustrating debugging. ### What you can't replicate - Carrier-grade global VoIP and WebRTC infrastructure with built-in call recording compliance - Production-scale Elasticsearch query engine handling hundreds of thousands of dynamic records instantly - Robust two-way background email/calendar synchronization engine across thousands of enterprise tenants ## What it does An all-in-one sales CRM platform featuring built-in VoIP calling, email, SMS, pipeline tracking, and an integrated AI sales agent (Chloe) for startups and small businesses. ### Core features - Multi-channel communication inbox (email, SMS, VoIP call logs) - Lead & contact management with customizable fields and activities - Deal pipeline tracking with visual stages and expected values - Dynamic lead list building (Smart Views) - AI sales assistant integration (Chloe) for call summaries and drafting - Interactive task management and follow-up reminders ## The business ### Pricing - Solo: $19/user/mo - Essentials: $49/user/mo - Growth: $109/user/mo - Scale: $149/user/mo ### Funding $250K raised. - Seed Investors: Angel Investors Founded 2013. Team size: ~156. ## The hard parts - Low-latency WebRTC power/predictive dialer infrastructure with global SIP carrier routing - Real-time bidirectional two-way email and calendar sync across providers - Asynchronous background queue orchestration for multi-channel workflows and SMS delivery compliance - Complex Elasticsearch/Postgres search over dynamic custom fields with sub-second UI response ## How to vibe code Close ### Prerequisites - Node.js (free): Runtime environment for Next.js development and package management. - GitHub (free): Source control and integration repository for deployment workflows. ### Recommended AI tools - Claude Code: Best-in-class multi-file agentic coding tool for scaffolding full-stack CRUD components and API routes. - Cursor: Ideal AI code editor for inspecting complex UI diffs in the multi-channel inbox and pipeline boards. ### Stack - Frontend: Next.js with Tailwind CSS and shadcn/ui - Backend: Next.js Server Actions & API Routes - Database: Neon (Serverless Postgres with Drizzle ORM) - Auth: better-auth - Payments: None (Personal use clone) - Other: Twilio for basic SMS/Voice prototyping, Resend for transactional notifications ### Hosting - Vercel (Hosting the Next.js frontend and serverless API endpoints): $0/mo (Hobby tier) - Neon (Serverless Postgres database hosting): $0/mo (Free tier) ### Build guide 1. **Database Schema & Authentication Setup** — Initialize a Next.js project with Drizzle ORM, Neon serverless Postgres, and better-auth for user sessions. ``` Create a complete Drizzle ORM schema in TypeScript for a sales CRM clone. Include tables for 'users', 'leads', 'contacts', 'opportunities', 'activities', and 'tasks'. Leads should have custom fields stored as JSONB, status tags, and company metadata. Contacts must belong to a Lead. Opportunities must track pipeline stages, expected monetary value, and win probability. Set up foreign key constraints and proper indexing for tenant filtering. Then configure better-auth integration with email/password authentication connected to this Postgres database schema. ``` 2. **Lead Management & Smart Views UI** — Build the core CRM dashboard with searchable lead tables, dynamic filters, and custom tag views. ``` Build a responsive Next.js dashboard using Tailwind CSS and shadcn/ui components representing the Close CRM lead table. Implement server-side pagination, search filtering over lead names and company metadata, and dynamic 'Smart Views' saving filter criteria in the database. Create a detailed Lead view page featuring a chronological timeline tab that aggregates notes, task items, and activity logs. ``` 3. **Pipeline & Deal Opportunity Kanban Board** — Implement drag-and-drop opportunity tracking across customizable sales pipeline stages. ``` Create a Kanban board view in Next.js for tracking sales pipeline opportunities across customizable stages (e.g., Lead, Qualified, Proposal, Won, Lost). Use a lightweight drag-and-drop interaction or column-shifting controls that update the opportunity stage via server actions. Display summary metrics at the top of each column showing total deal value and expected value calculations. ``` 4. **Multi-Channel Communication Inbox** — Develop a unified inbox aggregating simulated email threads, SMS logs, and task reminders. ``` Build a multi-channel communication inbox page in Next.js that centralizes a user's pending tasks, simulated email logs, and SMS threads linked to specific leads. Implement an interactive thread viewer component where users can type replies, schedule follow-up reminders, and assign tasks to teammates with explicit due dates and status checkboxes. ``` 5. **AI Assistant Integration (Chloe Substitute)** — Integrate an AI endpoint to generate lead summaries, draft emails, and parse notes automatically. ``` Implement an AI integration service using the Anthropic API that reads a lead's chronological activity log and generates a concise AI summary, highlights stalled deal risks, and suggests next-step follow-up actions. Add a button on the lead detail page that triggers this action and automatically saves the resulting text blocks into an AI summary field on the lead record. ``` ### Cost vs paying **Starting costs (one-time):** - AI Coding Assistant Subscriptions: $20 - Total: ~$20 one-time **Ongoing costs (monthly):** - Vercel & Neon Hobby Hosting: $0 - Total: ~$0/mo - Paying for the SaaS instead: $109/user/mo (Growth Plan) - Build time: 40-60 hours - AI tool credits: $20 (Claude Pro / Cursor Pro) - Break-even: 0 months (built for personal use / learning) ## Sources - [Close Pricing & Platform Features](https://close.com/pricing) - [Close CRM Overview and Chloe AI](https://close.com)