# Build brief — a focused alternative to HighLevel > **Verdict:** Not faithfully · **Buildability:** 19/100 · **Category:** CRM > **Source:** https://www.canitbevibecoded.com/gohighlevel > Independent editorial assessment from Can It Be Vibe Coded? Not affiliated with, endorsed by, or derived from HighLevel. Verify current pricing and capabilities before acting. ## Context **HighLevel** — Run lead capture, marketing, communications, sales, and customer operations in one platform. It currently costs $97/mo. HighLevel is not a basic CRM. It is a broad operating system for agencies and businesses, bringing hundreds of features under one roof: lead capture, funnels, CRM, marketing, communications, booking, payments, websites, automation, AI, client sub-accounts, and SaaS resale. A constrained local lead-management starter is buildable, but a faithful replacement is not a one-shot project. This brief describes a focused, single-operator replacement for the part of HighLevel that is genuinely reproducible. It is deliberately narrower than the product it replaces, and it says so in writing. Build the useful core; do not pretend to have rebuilt the rest. ## What you are building Build one narrow local slice for one business: capture inquiries, manage contacts and deals, schedule follow-ups, and send a few consented email messages. - Track contacts, log interactions, and queue follow-ups for a one-person pipeline. - A responsive interface with real empty, loading, success, and error states. ## Requirements ### Functional - Docker. - PostgreSQL. - Self-hosted server. - Verified sending domain. ### Data and integrations - Optional email API credentials. Each of these needs a real account, credential, or quota. Set them up before writing feature code. ### Non-functional - Accessibility: semantic markup, labelled controls, visible focus, and reduced-motion support. - Security: server-side secrets, validated input, and no credentials in the client bundle. - Reliability: retries with backoff on external calls, and a clear failure state when a provider is down. - Portability: the operator can export their data and leave without losing it. ## Implementation brief Build a deliberately narrow local lead-management starter inspired by one slice of HighLevel, in an empty repository. Do not portray it as a HighLevel replacement. Use Next.js 15, TypeScript, PostgreSQL, Drizzle ORM, and Docker Compose; do not offer alternative stacks. The core loop is: capture inquiries, manage contacts and deals, schedule follow-ups, and send a few consented email messages for one business. Make the first run work locally with one documented command. Store all data locally by default and provide CSV import and export. Put secrets in .env, ship .env.example, and never commit credentials. Create contacts, companies, deals, notes, tasks, configurable pipeline stages, and a next-action dashboard. Add a public lead form with spam protection, consent capture, validation, and a clear success state. Add saved filters, search, duplicate detection, merge, and a chronological interaction timeline. Implement email templates and manual campaign sends through one token-based provider, with unsubscribe, suppression, rate limits, retries, and send logs. Add role-based access for a tiny team, an immutable activity log, backups, and a recovery command. Seed a realistic demo workspace and document field mapping for imports. Include clear empty, loading, success, and recoverable error states. Write focused tests for the core data flow and one end-to-end happy path. Create a README with setup, architecture, permissions, data location, backup steps, and sending-domain setup. Do not add accounts, billing, telemetry, analytics, or a hosted control plane. Deliberately leave out the operating-system breadth: agency sub-accounts, white-label resale, funnels, websites, memberships, phone and SMS provisioning, payment processing, OAuth integrations, workflow automation, AI, mobile apps, and enterprise reporting. Do not claim to reproduce managed deliverability, telephony reliability, compliance operations, or a connector ecosystem. Finish by running the tests and listing the exact commands used. ## Delivery standard - Inspect the repository first, then write a short implementation plan before writing code. - Deliver the smallest complete end-to-end workflow first; every primary control must work against persisted data. - Use real validation and storage; never substitute fake dashboards, decorative controls, hard-coded success states, or mock integrations. - Include responsive layouts plus genuine empty, loading, success, validation, and failure states. - Keep secrets server-side in environment variables, provide .env.example, and never commit credentials or user data. - Add structured logs around every external call and return actionable errors without leaking sensitive details. - Write unit tests for the core logic and one automated test of the main user journey. - Finish with a README covering setup, architecture, data location, backups, tests, deployment, and known limitations. ## Acceptance criteria - [ ] A clean install starts the app using only the README and .env.example. - [ ] The primary journey works from first visit through saved result, reload, edit, export, and deletion where applicable. - [ ] Invalid input, missing configuration, provider failure, and an empty database each have a usable state. - [ ] The interface works at 390px and 1440px, is keyboard navigable, and shows visible focus on every control. - [ ] Tests, type checking, linting, and a production build all pass with no ignored failures. - [ ] No part of the interface implies a live integration, security guarantee, or scale capability that was not actually built and verified. ## Non-goals Do not build these, and do not claim to have replaced them: - The wider operating system: funnels, websites, reputation, memberships, and client portals. - Agency sub-accounts, white-label SaaS resale, and centralized administration. - Managed phone, SMS, and email delivery infrastructure. - Calendar, payments, AI, reporting, mobile apps, and third-party integrations. - Support, uptime, and compliance operations across the stack. ## What you still own after launch - Secure credentials, rotate secrets, and handle provider rate limits. - Run migrations, backups, restores, and dependency updates. - Test the critical journey after every model, API, or hosting change. - Monitor failures and fix the edge cases a first prompt will miss. - Maintain every third-party integration as APIs and OAuth rules change. ## Risk **Operational risk.** The code is achievable; dependable data, integrations, and ongoing operations are the real cost. Editorial confidence in this assessment: high. No reviewed project implementation is linked yet. ## Prior art Working open-source software you can read, fork, or borrow from before starting: - [Twenty](https://github.com/twentyhq/twenty) — Open-source CRM groundwork for contacts, companies and deals - [Mautic](https://github.com/mautic/mautic) — Open-source campaign and marketing-automation building block --- Generated by [Can It Be Vibe Coded?](https://www.canitbevibecoded.com) · Full report: https://www.canitbevibecoded.com/gohighlevel