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ARTICLE

The Repo Is The Company

How one GitHub monorepo replaces $415/mo in SaaS tools. 7 departments. One database. AI agents handle volume. You handle judgment.

$3,780 Saved per year
7 SaaS tools replaced
$13 Monthly cost
THE PROBLEM

The $415/mo SaaS trap

Most solo founders bolt together 7+ SaaS tools, then spend years fixing data silos. Here's what that stack actually costs:

HubSpot

Basic CRM + contacts

$50/mo

Mixpanel

Product analytics

$100/mo

Intercom

Support chat widget

$80/mo

Zapier

Connect them all

$50/mo

Mailchimp

Email marketing

$30/mo

Segment

Data sync + piping

$90/mo

Total monthly cost

7 tools, 7 logins, 0 shared data

$415/mo
⚠
The real cost isn't the money. It's the data silos. Your CRM doesn't know what your analytics tool sees. Your email tool can't read your support tickets. You spend more time exporting CSVs than running your business.
THE SOLUTION

One repo. One source of truth.

SoloStack takes a different approach: design for shared data from day one. Every department, every tool, every workflow lives in one monorepo.

1

Departments as folders

Marketing, Sales, CRM, Growth, Ads, Finance, Support — each department is a directory with its own agents, scripts, and workflows. But they all share the same database.

2

Shared packages

Database schema, UI components, email templates, and brand guidelines live in packages/. Change once, update everywhere. No integration work.

3

One CRM record

Every stage — enrich, outreach, signup, convert, retain — updates the same customer record in Neon Postgres. No exports. No syncing. No data silos.

4

AI agents for leverage

Claude Code agents handle volume: drafting emails, scoring leads, building carousels. You review and approve. 100 emails in 2 minutes, 5 minutes to review.

ARCHITECTURE

The monorepo map

Every folder has a purpose. Every file is context for AI. The repo IS the company's brain.

solostack/ 
solostack/
├── apps/
│   └── landing/              # Astro marketing site
│
├── departments/
│   ├── marketing/           # CMO — SEO, content, carousels
│   ├── sales/               # CRO — leads, outreach, LinkedIn
│   ├── crm/                 # COO — contacts, events, sequences
│   ├── growth/              # Growth — scoring, activation
│   ├── ads/                 # Paid — Google, Meta, budgets
│   ├── finance/             # CFO — revenue, Stripe, expenses
│   └── support/             # Support — tickets, KB, CSAT
│
├── packages/
│   ├── db/                   # Shared Postgres schema
│   ├── brand/                # Design tokens, CSS, Tailwind
│   ├── ui/                   # Shared components
│   └── emails/               # Email templates
│
├── tools/
│   ├── carousel-studio/      # Canva replacement
│   ├── crm-viewer/           # HubSpot replacement
│   └── nurture-designer/     # Klaviyo replacement
│
└── CLAUDE.md              # AI instructions for the whole company
DEPARTMENTS

7 departments. Zero silos.

Each department has AI agents that read from and write to the same CRM. No exports. No CSV uploads. One database.

CMO

Marketing

SEO, content, carousels, social media. Reads lead source, ICP score, engagement. Writes campaign attribution, email opens.

Carousel Studio DataForSEO pSEO
CRO

Sales

Lead enrichment, cold outreach, LinkedIn DMs, booking. Reads ICP score, usage patterns. Writes deal stage, call notes.

Unipile API Apollo.io Booking
COO

CRM

Contacts, events, sequences, webhooks. The single source of truth. Every department reads and writes here.

Neon Postgres Resend Webhooks
Head of Growth

Growth

Lead scoring, activation patterns, churn risk, cohort analysis. Reads all events. Writes ICP score, activation status.

PostHog Lead Scoring
Head of Paid

Ads

Google Ads, Meta Ads, campaign management, audience targeting. Budget allocation driven by CRM data.

Google Ads API Meta API
CFO

Finance

Revenue tracking, expense management, Stripe integration, bank reconciliation. Real-time P&L from the same database.

Stripe Airwallex
CROSS-DEPARTMENT

One prompt. Three departments.

you: "Find users inactive 7 days, check what features they tried, send personalized tutorials, log as re-activation campaign"
OLD WAY

Mixpanel → Export → Sheets → Mailchimp

3+ hours
REPO WAY

One prompt. Zero exports.

5 minutes
AI AGENTS

Agents handle volume. Humans handle judgment.

The human-agent pattern: agent drafts the work, queue holds proposals, you review and approve. That's the leverage.

Claude

Agent drafts

100 emails in 2 min

→
☰

Queue holds

Work waits for review

→
✓

Human reviews

You make the call

→
⚡

Action ships

Approved work goes live

What agents can do today

Draft cold emails Score leads against ICP Write blog posts Enrich contact data Build carousels Categorize support tickets Generate pSEO pages Schedule follow-ups Track campaign attribution
COST COMPARISON

$3,780 saved per year

Every SaaS tool replaced with an in-house equivalent that shares the same database. No per-seat pricing. No vendor lock-in.

Function SaaS Tool SaaS Price In-House Replacement In-House Cost
CRM HubSpot $50/mo CRM Viewer + Neon DB ~$3/mo
E-Signatures PandaDoc $25/mo Proposal system + audit trail $0
Scheduling Cal.com $12/mo Booking + Google Calendar API $0
Design Canva $15/mo Carousel Studio $0
Email Sequences Klaviyo $100/mo Nurture Designer + Resend ~$10/mo
Website Webflow $30/mo Astro + Netlify $0
Automation Zapier $50/mo Claude agents + Functions $0
Analytics Mixpanel $100/mo PostHog / GA4 $0
Monthly Total $382/mo ~$13/mo
$369 saved/month = $4,428 saved/year
GET STARTED

Launch sequence

Four steps from zero to running your company from a repo.

1

Define your ICP

Who is your ideal customer? Industry, size, role, pain point, budget. This drives everything — lead scoring, outreach copy, content topics.

2

Ship your product

Get the MVP live. Real users give real feedback. The repo structure means your landing site, CRM, and analytics are already connected.

3

Start outreach

Find leads with Apollo.io, enrich with Apify, score against your ICP, send personalized cold emails. All orchestrated by Claude Code agents.

4

Content marketing

Blog posts, LinkedIn carousels, pSEO pages. Build long-term pipeline while agents handle the outbound. The content lives in your repo too.

FAQ

Common questions

It means your entire business — marketing, sales, CRM, support, finance — lives in a single GitHub repository. Instead of scattering data across 7+ SaaS tools, everything shares one database, one codebase, and one source of truth. AI agents orchestrate the workflows. You guide the vision.
No. SoloStack is built for vibe coding — you describe what you want in plain English, and Claude Code writes the implementation. You're the product manager with an infinitely fast dev team. Every tool, every workflow, every integration is built by AI from your descriptions.
A typical SaaS stack for a solo founder costs $415+/month: HubSpot ($50), Mixpanel ($100), Intercom ($80), Zapier ($50), Mailchimp ($30), Segment ($90), Canva ($15). SoloStack replaces all of these for ~$13/month — mostly just Neon Postgres ($3) and Resend email ($10). That's $3,780 saved per year.
SoloStack replaces HubSpot (CRM Viewer + Neon DB), PandaDoc (proposal system with e-sign), Cal.com (booking system + Google Calendar API), Canva (Carousel Studio), Klaviyo (Nurture Designer + sequence engine), Webflow (Astro landing site), Zapier (Claude agents + Netlify Functions), and Mixpanel (PostHog/GA4). Each replacement is built in-house, shares the same data, and costs nothing extra.
AI agents are Claude Code instances that handle volume work: drafting 100 emails in 2 minutes, scoring leads, generating carousels, enriching contact data. They propose work to a queue, you review and approve. The pattern is: agent does the work, queue holds proposals, human reviews, action goes live. You handle judgment, agents handle volume.
Every department — marketing, sales, CRM, growth, ads, finance, support — reads and writes to the same Neon Postgres database. There are no exports, no CSV uploads, no API integrations between tools. When sales enriches a lead, marketing can immediately see the data. When a user signs up, growth can score them. One database, zero silos.
Yes — that's the point. Need a proposal system? Describe it to Claude Code and it builds a Vite + React app connected to your shared database. Need a carousel builder? Same process. New tools take hours, not months, because they inherit the existing CRM, brand system, and data layer. Every tool you build adds more context to the repo.
Production-ready. SoloStack includes e2e test coverage, API-first architecture, full event tracking, shared packages, and deploys to Netlify. The booking system has Google Calendar integration. The proposal system has legally-binding e-signatures with audit trails. The CRM tracks the full customer journey from lead to conversion.
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Explore the Stack

See how SoloStack replaces your entire SaaS toolkit

Free Tool

Free CRM

Unlimited contacts, zero per-seat pricing. AI-managed CRM in your repo.

Free Tool

Free Scheduling

Booking pages with Google Calendar sync. Replace Cal.com for $0/mo.

Replace

Replace HubSpot

Full CRM with contacts, deals, email sequences, and analytics. $3/mo vs $800/mo.

Replace

Replace Calendly

Booking system with Google Calendar API. No per-seat pricing.

Open Source

Open Source CRM

Postgres-based CRM you own. No vendor lock-in, no per-seat pricing.

Learn

Learning Hub

Step-by-step lessons on building an AI-native business.

Ready to kill your SaaS stack?

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