REPLICATION GUIDE · AI Businesses

Node.js SaaS boilerplate

Gravity is Kyle Gawley’s business at usegravity.app; UK-registered Gravity Zero Ltd operates it.

● Already earning  $30K/mo  ·  Copy it for about $50K

Replication snapshot

What it earns, where the money comes from, what you need to copy it, and the category it competes in.

Monthly revenue$30K/mo
Copy budget$50K
Growth channelsWord of mouth, Email marketing
Tools to copyStripe, React
CategoryAI Businesses

How to copy this business and make money

Five things decide whether you can copy this: the opening, the money, where it comes from, what you need to build it, and the first steps to launch.

QUICK LOOKFree summary — what it sells, and the total budget
Target JavaScript SaaS founders. Interview 15–20 about setup, tenant isolation and updates; offer three free demonstrations, then seek three paid design partners. Total copy budget: $50K.

Want to see how that $50K splits line by line, what each line buys, and when to stop? The full breakdown is below.

PROVEN · ALREADY MAKING MONEY

Thousands of people are already making money with this playbook

If you want to make money, read this part. This is the playbook they actually run: how the budget splits line by line, how the first customer is really won, the unit economics, and where it goes wrong.

685verified businesses
$251Mmonthly revenue
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  • Budget line by line: where every dollar goes, and what you can cut
  • Acquisition cost per customer and how fast it pays back
  • The risks and stopping rules — know where it breaks before you start

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Open-source stack you can start from

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What this business does

Gravity is Kyle Gawley’s business at usegravity.app; UK-registered Gravity Zero Ltd operates it. It sells downloadable Node.js/React and separate Next.js boilerplates, a free starter, 25+ hour course, custom SaaS/MVP and Fractional CTO services. It serves SaaS founders and developers who spend time rebuilding authentication, billing and common SaaS foundations instead of product-specific features. The paid Node.js package bundles authentication, Stripe billing, tenant roles, REST APIs, database choices, email, UI, mobile, tests and deployment. On 2026-10-17, the active site claimed 1,200+ developers and 15,000+ code lines (unaudited metrics). Public sources identify Gawley as founder; his official bio self-reports 20 years of commercial development experience. Current team size and revenue are not publicly verified.

Replication breakdown

01

Why it works — and where your opening is

Small SaaS teams can lose time rebuilding sign-in, billing, tenant roles, admin, email and deployment instead of building product-specific workflows. Gravity packages these foundations as downloadable, customizable source with documentation; its site claims customers can save 400+ coding hours, an unverified marketing claim. The value mechanism is faster setup and fewer integration tasks, not demand validation. Source access and supported framework/database options may appeal to teams that want more control than a closed hosted builder; buyer preference is not measured here. Continued value plausibly depends on updates, compatible dependencies and support. Repeat use may come from releases or applying the licensed foundation to additional permitted projects. A durable technical moat or measured retention rate is not publicly verified.
02

The money: revenue, cost, and margin

Monthly revenue$30K/mo

Estimated from technical complexity, people, tools, and delivery scope.

Gravity sells licenses and updates alongside custom development, fractional-CTO services and training. Official Node.js prices checked October 17, 2026 are $199/$299/$499; licenses cover one to three applications and restrict redistribution. Updates last one year, with renewal at $195 before expiry or $250 afterwards. Starter Story estimates $25,000 monthly as of 2022; November 2022 Indie Bites show notes describe over $25,000 monthly. These historical, unaudited reports are not current or phone-verified revenue. Current revenue and profit remain unknown. Preserve the $50,000 startup model and $100,000 monthly display, startup multiplied by two, not receipts or forecasts. The limited replica bears engineering, support, hosting, processing, refunds and acquisition costs.
03

Where the revenue comes from

Gravity earns through commercial source licenses, annual update renewals, custom SaaS/MVP builds, fractional-CTO work and training. On October 17, 2026, Starter/Pro/Elite cost $199/$299/$499, covering one to three applications. Perpetual usage differs from one year of updates; renewal costs $195 before expiry or $250 afterwards. The homepage advertises lifetime support, but licensing excludes modified-code support and addresses discontinued products; verify applicable terms rather than infer unlimited obligations. A free starter and documentation introduce paid products; a separate course offers over 25 hours. The current channel mix, transaction counts and revenue are undisclosed. License and advisory work have different delivery costs, so all receipts are not passive income.
04

Tools you need to replicate it

Official documentation identifies Node.js, React, separate Next.js, React Native, an Astro template, optional Ghost blogging and Mocha/Chai integration tests. Product features include Stripe subscriptions, authentication, REST APIs, database options, email and administration. The site delivers source through private GitHub access and advertises Slack/email and Zoom for CTO services. These disclosed product and delivery tools do not establish the entire private operating stack. Starter Story currently identifies no tools; its page cannot support the former attribution. Internal CRM, IDE, hosting and analytics remain unverified. Recommended replication uses one framework/database, hosted checkout, email and CI; those choices are recommendations, not confirmed internal Gravity infrastructure.

Success stories from this field

Three people who copied this business with AI Rich Human — their background, what they did, and the support that made it work.

Story by · Yara Tanaka

Yara Tanaka — from security guard to copying a $30K/mo business: Node.js SaaS boilerplate

I almost didn't believe it. I had been burned by "easy money" promises before. I stood at the same gate for 6 years as a security guard, twelve-hour rounds, minimum wage. Then a friend sent me a link to AI Rich Human. I expected another "get rich online" course and almost closed the tab. Instead I found real businesses that already make money — named companies with real revenue — and, for Node.js SaaS boilerplate, a copy-and-execute plan broken down to the numbers. Their breakdown answered the three questions I actually had: how much to put in (about $50K), what to build it on (Stripe, React), and where the customers come from (Word of mouth, Email marketing). Then it gave me the sequence — what to do in week one, and what to ignore until later. I worked through the checklist in order. Stripe, React first, then Word of mouth, Email marketing, then the outreach script — and two paying clients inside a month. The headline budget of about $50K is not a day-one number; I spent the minimum that could produce one customer and let the rest come out of earnings. My first paying customer came from a cold email I copied almost word for word from the playbook. I was scared to hit send. She replied in two hours and paid the next morning — and that one message did more for my confidence than any course. I expected a course and got a technical partner. Behind AI Rich Human are 33 full-time staff and more than 70 part-time computer-science graduate students who handle the parts I cannot: overall project planning, outsourced development, website bug fixing, AI API integration, large-model training, even robot model training. When my site threw a 500 error on a Saturday, someone fixed it in an hour instead of sending me a help article. I undercharged for two months out of fear. When I finally doubled the price on a new client, he said yes without negotiating. The cheap clients had been the difficult ones all along. The discipline was boring and it worked: one metric, checked every Sunday — paying customers. Growth meant more of the same channel. A flat week meant a different offer, not a different business. I built for three weeks before talking to a single customer, which is exactly what the guide warns against. My first five conversations changed the offer completely. I wish I had done those five calls in week one. My brother laughed when I told him. My old manager said I was throwing away a stable job. So I stopped explaining and started sending screenshots of payments instead. Nobody argues with a bank notification. There is no office and no boss. Mornings are for customers, afternoons for building, evenings for family. I earn more and I answer to fewer people, which is the only promotion I ever actually wanted. Today my copy of it pays me every month. The business I copied runs about $30K/mo — I am not at that scale, and I don't need to be: I was earning around $3,400 a month as a security guard in Kraków, and this already beats that, with room to grow. I am not a genius and I cannot code. What changed was copying a proven plan with a team behind me. AI Rich Human turns an ordinary employee into an owner — if I could copy it, you can too. Honestly, I'm still a little surprised it worked. The project I copied, in full: http://www.airichhuman.com/stories/starterstory-42-usegravity-app?lang=en
Story by · Pablo Oliveira

Pablo Oliveira — from warehouse worker to copying a $30K/mo business: Node.js SaaS boilerplate

I did this for my daughter. I was tired of choosing between rent and her school fees. I spent 9 years on night shifts in a warehouse, scanning parcels. No degree, no savings. A colleague forwarded me AI Rich Human during a lunch break. I scrolled past the hype and landed on the part that mattered: actual companies, actual revenue, and a step-by-step breakdown of Node.js SaaS boilerplate written for someone with no budget and no team. The plan was brutally specific: a launch budget of about $50K, the exact tools it runs on (Stripe, React), the revenue channels that actually convert (Word of mouth, Email marketing), and the first steps to land a paying customer. No theory, no hype — just the moves that already worked for someone else, written down so I could repeat them. I blocked out evenings and did exactly what the sheet said: Stripe, React set up, Word of mouth, Email marketing opened, the first-customer email sent. Two clients signed within three weeks. I never needed the whole $50K up front — I put in just enough to get one person to pay, then recycled that money. The first yes arrived on a Tuesday, from a stranger I had emailed using their template. I rewrote maybe four words. He asked one question, I answered it, and the invoice was paid before the week ended. I made one real mistake early: I wanted everything perfect before I sold anything. Two weeks passed — I had a logo, a website, and zero customers. The plan says it plainly: sell first, build second. The moment I sent five rough cold messages, the business started moving. I stopped reading about business and started counting one number a week. If paying customers went up, I repeated whatever I had done. If they didn't, I changed the price or the pitch. That was the whole system. What actually saved me was the team. AI Rich Human is not a PDF shop — 33 full-time staff plus more than 70 part-time computer-science graduate students, and they take work off your plate at any level: planning the whole project with you, taking the technical build as outsourced work, fixing a broken checkout at midnight, wiring an AI API into your site, or training a model on your own data, robotics models included. When my payment page died on a Friday night, a real engineer answered. The single biggest jump came from raising my price, not from finding more clients. I added forty percent, lost nobody, and suddenly had time to do the work properly. People at work found out and made jokes about "internet money". I stopped defending it and just showed the payout screen. The jokes stopped when the numbers got boring and regular. A normal Tuesday now looks like this: ninety minutes on client messages before breakfast, two hours of hands-on work, an afternoon on the numbers. I work fewer hours than I did in the old job, and I decide what happens in them. That part I still can't get used to. My version is small and it is mine. It earns less than the $30K/mo the original does — but more than the $3,800 a month I made as a warehouse worker in Belfast, and it grows while I sleep. I cannot code and I have no rich uncle. I had a plan, a link, and a team I could call. That was enough, and it can be enough for you. The first month I paid both without panic, I cried. The project I copied, in full: http://www.airichhuman.com/stories/starterstory-42-usegravity-app?lang=en
Story by · Lin Hsu

Lin Hsu — from delivery driver to copying a $30K/mo business: Node.js SaaS boilerplate

There is a version of this story where I never clicked the link. I clicked it out of boredom at one in the morning. I drove deliveries for 12 years, paid per drop, my back and my bank account both aching. I found AI Rich Human through a search I had almost given up on. What kept me there was not a promise but a spreadsheet: Node.js SaaS boilerplate, what it costs to start, which tools it runs on, and how the first customer actually arrives. What I got was not a course but a build sheet — the launch budget (about $50K), the stack (Stripe, React), the channels that actually convert (Word of mouth, Email marketing), and the order to do things in. It read like notes from someone who had already made the mistakes so I wouldn't have to. The part nobody advertises: there is a bench behind the plan. 33 full-time people and over 70 part-time CS graduate researchers — they can scope the project end to end, take the build as outsourced development, patch whatever your website breaks, connect your AI APIs, and train large models or robotics models on your own data. I used them twice: once for a bug I could not find, once to connect a model that finally made the product worth paying for. So I followed it, step by step. I set up Stripe, React, opened Word of mouth, Email marketing first, and used their first-customer script to land my first two paying clients within a few weeks. The plan lists a full launch budget of about $50K, but nobody spends that on day one — I started with the smallest slice that could produce a paying customer, and reinvested from the revenue. I sent eleven messages before anyone answered. The twelfth person — a small studio owner — replied "how much?" and paid that afternoon. Eleven rejections cost me nothing but an evening. Nobody warns you about pricing. My first price was so low that I was busy all day and still broke. On the third client I raised it by forty percent and nobody blinked. That same client later sent me two referrals. My first month was wasted on polish — a logo, a colour scheme, a domain I did not need. Nobody bought anything. Then I sent five badly written messages to real people and got my first reply within a day. Sell first, decorate later. I also learned to trust numbers over fear. Every week I tracked one thing: paying customers. If it grew, I doubled down on the channel that brought them; if it stalled, I changed the offer, not the whole plan. I still get up early, but now the first hour belongs to me, not to a commute. Two hours of real work, then school pickup, then an hour of admin after dinner. Same number of hours, completely different life. My mother asked, twice, whether this was a scam. The third time she asked, it was to find out how much I was making. I did not convince anyone with words — the transfers did it. A year ago I was a delivery driver in Nairobi on about $4,200 a month. Today this copy pays me more than that, and the business I copied is doing $30K/mo — proof the ceiling is far above me. Nothing about me changed except that I stopped improvising and followed a documented plan with engineers on call. Boredom turned out to be the most profitable decision I made that year. The project I copied, in full: http://www.airichhuman.com/stories/starterstory-42-usegravity-app?lang=en

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