The Vibe Coding Masterclass

Stop watching tutorials. Start shipping apps. The Vibe Coding Masterclass is the no-code, AI-first blueprint for building and launching...
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Lucian TillerProfile picture@luciantillerĀ·Apr 13

⚔ The Prompt Stacking Technique That Cut My Debugging Time by 80%

Most vibe coders use AI the same way: hit a bug, paste the error, pray for a fix. When that doesn't work, they paste it again with "please actually fix it this time."


There's a better way. I call it prompt stacking — a structured debugging workflow that turns your AI assistant into a senior engineer instead of a guessing machine.


The Problem With Single-Shot Debugging


When you throw a raw error at an AI, you're asking it to solve a puzzle with missing pieces. It doesn't know:

  • What you were trying to build

  • What you changed recently

  • What you've already tried

  • How your components connect


So it guesses. Sometimes it's right. Most of the time, it sends you down a rabbit hole.


The 4-Layer Prompt Stack


Instead of one giant prompt, break your debugging into four sequential prompts that build context like a funnel:


Layer 1 — The Recon Prompt

"Here's my file structure and the component where the bug lives. Don't fix anything yet. Just explain what this code is supposed to do and identify any assumptions it makes."


This forces the AI to understand before it acts. You'll catch misunderstandings early.


Layer 2 — The Isolation Prompt

"Here's the error. Based on your understanding of the code, list the 3 most likely root causes ranked by probability. Don't write any code yet."


Now you have a ranked hypothesis list instead of a blind fix attempt.


Layer 3 — The Surgical Fix

"Let's investigate cause #1. Show me the minimal code change to test whether this is the issue. Nothing else."


One change. One variable. If it doesn't work, you move to cause #2 with zero wasted effort.


Layer 4 — The Hardening Prompt

"The fix worked. Now: what other parts of the codebase could have this same pattern? And how do I prevent this class of bug in the future?"


This is where most people stop too early. Layer 4 turns a bugfix into a system improvement.


Why This Works


  • You stay in control. The AI follows your reasoning instead of freelancing.

  • Context compounds. Each prompt builds on the last, so the AI gets smarter with every layer.

  • You learn faster. Instead of copy-pasting fixes you don't understand, you're building a mental model of your own codebase.


Quick Implementation Tip


Save these four prompts as snippets in your editor. When a bug hits, run the stack instead of panic-prompting. After a week, you'll wonder how you ever debugged any other way.


The builders who ship fast aren't writing better code on the first try — they're debugging smarter when things break. And things always break.


This is the kind of real-world workflow we break down step-by-step inside the Vibe Coding Masterclass. Want the full system? Check out the course. šŸš€

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Lucian TillerProfile picture@luciantillerĀ·Apr 10

šŸ› ļø How I Built a Paying SaaS Tool in 5 Days Using AI — Exact Stack, Prompts, and Steps

Last month I built a simple SaaS tool — a client invoice tracker for freelancers — and had paying users within a week. No CS degree. No co-founder. Just AI tools and a clear process.


Here's the full breakdown so you can replicate it.


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The Stack I Used


  • AI Editor: Cursor (with Claude as the model)

  • Framework: Next.js 14 (App Router)

  • Database: Supabase (Postgres + auth + storage, all free tier)

  • Payments: Whop (handled checkout, subscriptions, and access gating)

  • Deployment: Vercel (free tier, auto-deploys from GitHub)

  • Design: v0.dev for generating UI components, then tweaked in Cursor


Total upfront cost: $0. Cursor has a free tier, everything else is free until you scale.


---


Step 1: Define the Product in One Sentence


Before touching any tool, I wrote this down:


"A dashboard where freelancers can create invoices, track payment status, and send reminders to clients."


That's it. One user, one workflow, one outcome. This sentence guided every decision.


---


Step 2: Generate the UI First


I went to v0.dev and prompted:


"A clean, modern dashboard for freelancers to manage invoices. Sidebar navigation with Dashboard, Invoices, Clients, and Settings tabs. Main area shows a table of invoices with client name, amount, due date, and status badges (paid, pending, overdue). Include a 'Create Invoice' button."


It gave me a solid React component in seconds. I copied it into my Cursor project and had a visual foundation immediately.


---


Step 3: Build Auth + Database


In Cursor, I prompted:


"Set up Supabase auth with email/password login in this Next.js app. Create a sign-in page, sign-up page, and protected layout that redirects unauthenticated users. Also create Supabase tables for: invoices (id, userid, clientname, clientemail, amount, duedate, status, createdat) and clients (id, userid, name, email, company)."


Cursor scaffolded the auth flow, middleware, and SQL migrations. I ran the migrations in Supabase, tested login — worked first try.


---


Step 4: Wire Up the Core CRUD


Next prompt:


"Create server actions for the invoices table: create invoice, list invoices for the current user, update invoice status, and delete invoice. Use Supabase server client with row-level security. Then connect these to the invoice table UI with optimistic updates."


This was the meatiest step — took about 3 hours of prompting, testing, and fixing edge cases. Key tip: when AI gives you a bug, paste the exact error message plus the relevant file. Don't just say "it's broken."


---


Step 5: Add the Money Layer


I created a product on Whop with two plans — $9/month and $29/year. Connected it so that the app checks for an active Whop membership before granting dashboard access. Non-paying users see a landing page with a checkout button.


---


Step 6: Polish and Ship


  • Added email reminders using Resend (AI wrote the entire email template)

  • Mobile-responsive tweaks (one prompt: "make this layout responsive for mobile screens")

  • Deployed to Vercel, pointed a $10 domain at it

  • Posted on X and three freelancer subreddits


Result: 4 paying users in the first 48 hours. Not life-changing money — but proof that the system works.


---


The Takeaway


You don't need to be a developer. You need a specific idea, the right stack, and clear prompts. AI does the heavy lifting — you just steer.


This is the exact methodology we go deep on inside the Vibe Coding Masterclass — full project walkthroughs, prompt libraries, and the system for going from zero to revenue. If you want the complete playbook, it's all in there.


What SaaS idea are you sitting on? Drop it below and I'll tell you if it's buildable in a week. šŸ‘‡

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Lucian TillerProfile picture@luciantillerĀ·Apr 9

šŸ’€ 5 Mistakes That Kill 90% of AI-Built App Projects (And How to Dodge Every One)

I've built over a dozen apps with AI tools in the last year. Some shipped and made money. Others died quietly in a folder called "projects" on my desktop.


The difference was never talent or tools — it was avoiding the same handful of mistakes that take down almost every beginner project. Here's what actually kills AI-built apps, and exactly how to fix each one.


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Mistake #1: Writing Vague Prompts


This is the silent killer. You type "build me a dashboard" and wonder why the output is garbage.


AI is powerful, but it's not a mind reader. Vague input = vague output, every single time.


The fix:

  • Be absurdly specific: "Create a React component that displays a table of user subscriptions with columns for name, plan, status, and renewal date"

  • Include context: what stack you're using, what already exists, what the user flow looks like

  • Treat every prompt like a mini spec document


---


Mistake #2: Building Everything Before Shipping Anything


You planned 14 features. You built 6. You shipped zero.


This is scope creep — and it's the #1 reason AI projects never see the light of day. You keep adding "just one more thing" and the finish line keeps moving.


The fix:

  • Define your one core feature before you write a single prompt

  • Everything else goes on a "V2 list" that you don't touch until V1 is live

  • Ask yourself: "Can one person get one result with this?" If yes, ship it


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Mistake #3: Over-Engineering the Architecture


You don't need microservices. You don't need a custom auth system. You don't need to optimize for 10,000 concurrent users on day one.


You have zero users. Build for one.


The fix:

  • Use opinionated stacks with built-in defaults (Next.js + Supabase is a cheat code)

  • Let AI scaffold the boring stuff — auth, database schema, API routes

  • Perfect architecture is the enemy of a shipped product


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Mistake #4: Debugging in Circles


AI gives you broken code. You paste the error back. It gives you different broken code. You paste again. Two hours gone.


The fix:

  • After two failed attempts, stop and rethink your approach entirely

  • Break the problem into smaller pieces and tackle each one independently

  • Read the error message yourself — often it's a missing import or a typo, not a logic issue

  • Context matters: give AI the relevant file, not your entire codebase


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Mistake #5: Never Actually Launching


This is the big one. The app works on localhost. It looks decent. But you never deploy it because it "isn't ready."


It will never feel ready. Ship it anyway.


The fix:

  • Set a hard launch date before you start building — 7 days max for an MVP

  • Deploy on day one, even if it's just a landing page

  • Share it with 5 real people and watch them use it — that feedback is worth more than another week of polishing


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The Pattern


Every dead project I've seen shares the same DNA: too much planning, not enough shipping. AI gives you unprecedented building speed — but speed is useless without direction and discipline.


This is exactly what we break down inside the Vibe Coding Masterclass — a system for going from idea to launched product without falling into these traps. Every lesson is built around shipping, not just building.


Which of these mistakes have you been guilty of? Be honest šŸ‘‡

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Lucian TillerProfile picture@luciantillerĀ·Apr 8

šŸš€ The 7-Day AI App Challenge: Go From Zero to a Live Product by Next Week

Most people spend months "learning to code" and never ship anything. Here's a different approach — build and launch a real app in 7 days using AI, starting with nothing but an idea.


I've done this multiple times now. Here's the exact daily breakdown that works.


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The 7-Day Blueprint


Day 1: Nail Your Idea (Don't Overthink It)

  • Pick one specific problem you or someone you know actually has

  • Write a single sentence: "This app helps [person] do [thing] faster/easier"

  • Look at existing solutions — find what's clunky, overpriced, or missing

  • Milestone: One validated idea with a clear user and use case


Day 2: Design the MVP Scope

  • List every feature you can think of, then cut 80% of them

  • Keep only what's needed for one user to get one result

  • Sketch 3-5 screens on paper or in Excalidraw — ugly is fine

  • Milestone: A feature list that fits on a sticky note


Day 3: Set Up Your Stack

  • Spin up a Next.js project using Cursor or your AI editor of choice

  • Connect a database (Supabase or Neon — both have free tiers)

  • Get authentication working with a template

  • Milestone: A deployed "hello world" at a real URL


Day 4: Build the Core Feature

  • This is your power day — focus on the one thing your app does

  • Feed your AI editor the feature description and let it scaffold

  • Don't polish UI. Get the logic working end to end

  • Milestone: The core workflow functions, even if it looks rough


Day 5: Build the Second Layer

  • Add the supporting screens — dashboard, settings, onboarding

  • Connect everything so a real user could actually navigate the app

  • Start handling edge cases (empty states, errors, loading)

  • Milestone: A complete user flow from signup to value


Day 6: Polish and Deploy

  • Clean up the UI — consistent spacing, readable fonts, mobile-friendly

  • Add a landing page that explains what it does in 10 seconds

  • Deploy to Vercel or Railway. Grab a domain if you're serious

  • Milestone: A live app you'd feel comfortable sharing


Day 7: Launch and Get Users

  • Post on X, Reddit, Indie Hackers, and relevant communities

  • Send it to 10 people personally and ask for honest feedback

  • Set up basic analytics so you know what's happening

  • Milestone: Real humans using something you built from scratch


---


Why This Actually Works


The secret isn't coding skill — it's constraint. Seven days forces you to cut scope, make decisions fast, and ship before your inner perfectionist takes over. AI handles the implementation; you handle the vision and the decisions.


I've watched people go from "I've never built anything" to collecting their first payments in under two weeks using this exact framework.


This is the core methodology we teach inside the Vibe Coding Masterclass — a day-by-day system for turning ideas into shipped, revenue-generating apps using AI. If you want the full toolkit, prompts, and project walkthroughs, the course has you covered.


What would you build in 7 days? Drop your idea below. šŸ‘‡

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Lucian TillerProfile picture@luciantillerĀ·Apr 8

The 3 App Ideas That Will Actually Make Money in 2026 (No Oversaturated Niches)

Everyone wants to build a SaaS. Almost everyone picks the wrong idea.


Here are 3 categories that are printing money right now — with low competition and high willingness to pay.


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1. Niche Workflow Automators

The idea: Find a specific industry (real estate agents, tattoo artists, dog groomers) and automate ONE annoying manual process they do every day.


Why it works:

  • These people aren't tech-savvy, so the bar for "impressive" is low

  • They charge $50-200/mo for tools that save them 5+ hours/week

  • The market is fragmented — no big player owns these micro-niches


Example: A client intake form + auto-scheduling + invoice generator for freelance photographers. Could build this in 3 days with AI tools.


Revenue potential: 50 users Ɨ $79/mo = $3,950/mo


2. AI-Powered Content Tools for Creators

The idea: Creators are drowning in content demands. Build a tool that takes one piece of content and repurposes it across platforms.


Why it works:

  • Creators have money and hate repetitive tasks

  • The AI APIs are cheap ($0.01-0.10 per use)

  • You can build a profitable tool before anyone else catches on


Example: Upload a YouTube video → automatically get Twitter threads, LinkedIn posts, Instagram captions, and a newsletter draft. Charge $29/mo.


Revenue potential: 200 users Ɨ $29/mo = $5,800/mo


3. Internal Tools for Small Businesses

The idea: Small businesses (5-50 employees) still use spreadsheets for everything — inventory, scheduling, project tracking. Build them a simple custom dashboard.


Why it works:

  • They'll pay $200-500/mo without blinking if it saves them time

  • You can build a "custom" solution using templates and swap out the branding

  • Referrals are insane in this space — one happy client = 3 more


Example: A job scheduling + invoicing dashboard for a plumbing company. Takes a weekend to build with AI. Sell for $299/mo per business.


Revenue potential: 20 clients Ɨ $299/mo = $5,980/mo


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How to Validate Before You Build


  1. Find 3 communities where your target customer hangs out (Reddit, Facebook Groups, Discord)

  2. Post this: "What's the most annoying part of running your \\\\\_ business?"

  3. Look for patterns. If 5+ people describe the same pain, you have a winner.

  4. DM 10 of them: "Would you pay $X/mo for a tool that solves this?" Get at least 3 yeses before writing a single line of code.


This validation process takes 48 hours. Skip it at your own risk.


---


The biggest mistake I see people make: they build something technically cool instead of something financially smart. The best product is the one people are already willing to pay for.


I teach this entire process — from finding ideas to shipping and selling — inside the Vibe Coding Masterclass. If you've been thinking about building something, stop thinking and start doing.

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Lucian TillerProfile picture@luciantillerĀ·Apr 8

5 Free AI Tools That Replace a $10K Dev Team (2026 Edition)

You don't need to hire developers anymore. Not for MVPs. Not for internal tools. Not even for customer-facing products.


Here are 5 tools that changed everything for me — and they're either free or under $20/month.


---


1. Cursor (AI Code Editor) — $20/mo

This is the backbone. Cursor is VS Code but with AI baked into every keystroke. You describe what you want in plain English, and it writes the code.


Best for: Building full-stack web apps, APIs, dashboards

Why it wins: It understands your entire codebase, not just the file you're in. Context-aware autocomplete is a game changer.


2. V0 by Vercel (UI Generator) — Free

Describe a UI in words → get production-ready React components. No Figma. No designer. No back-and-forth.


Best for: Landing pages, dashboards, component libraries

Why it wins: The output actually looks good. Not "AI-generated" good — actually good.


3. Vercel (Deployment) — Free tier

One-click deployment. Your app goes from localhost to a live URL in 30 seconds. SSL, CDN, and auto-scaling handled.


Best for: Deploying Next.js, React, and static sites

Why it wins: Zero DevOps knowledge required. Push to GitHub → it's live.


4. Supabase (Backend/Database) — Free tier

Postgres database, authentication, file storage, and real-time subscriptions. It's like Firebase but open-source and SQL-based.


Best for: User auth, data storage, real-time features

Why it wins: The free tier is genuinely usable for production apps with < 500 users.


5. Claude / ChatGPT (AI Assistants) — Free tiers available

When Cursor can't figure something out, these are your debugging partners. Paste in error messages, ask for architecture advice, or have them review your code.


Best for: Debugging, planning, learning concepts

Why it wins: They're getting better every month. The gap between "AI-assisted" and "human-written" code is basically gone.


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The Stack I Use for Every Project


Idea → Cursor (build) → Supabase (backend) → Vercel (deploy) → Whop (sell)


Total monthly cost: $20 for Cursor. Everything else is free tier until you're making money.


The old way: Spend $10K+ on a dev team, wait 3 months, pray it works.

The new way: Build it yourself in a week, ship it, iterate based on real feedback.


If you want the full step-by-step system for going from zero to a deployed, sellable app using these exact tools — I built a course that walks you through every stage. 18 lessons. 5 modules. No fluff.

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Lucian TillerProfile picture@luciantillerĀ·Apr 8
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šŸ‘‹ Welcome to The Vibe Coding Masterclass — Start Here

Welcome in — you just made one of the best investments in your future. Here's how to get the most out of this masterclass:


Your Game Plan


Step 1: Start the Course

Head to the Vibe Coding Masterclass course and begin with Module 1. The lessons are sequential — each one builds on the last. Don't skip ahead.


Step 2: Follow Along & Build

Every lesson is designed for you to build alongside it. By Module 3, you'll have a real, working app. By Module 4, you'll have it deployed and ready to sell.


Step 3: Use the Community

Drop into the Chat to ask questions, share progress, or get feedback. This isn't a passive course — the people who win are the ones who engage.


Step 4: Check for Updates

This forum is where I'll post new templates, tool recommendations, bonus tutorials, and important updates. Keep notifications on.


Quick Links

  • šŸ“š Course → Start Module 1

  • šŸ’¬ Chat → Introduce yourself

  • šŸ“ Files → Grab templates and resources


One Rule

Ship something. Don't just consume the content — build, launch, and iterate. That's how you turn this $49 into $4,900+.


Let's get it. šŸš€


— Lucian

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Lucian TillerProfile picture@luciantillerĀ·Apr 8

I Built and Sold a SaaS App in 7 Days — Without Writing a Single Line of Code. Here's Exactly How.

Most people think you need a CS degree, years of experience, or a technical co-founder to build software.


That was true in 2020. It's not true anymore.


I used AI coding tools (Cursor + Claude) to go from a blank screen to a deployed, revenue-generating app in one week. No Stack Overflow. No tutorials from 2017. No copy-pasting boilerplate I didn't understand.


Here's the exact process:


Day 1-2: Find the Problem

I didn't start with code. I started with a pain point — something a specific group of people would pay to fix. I spent two days talking to people in Reddit communities, Facebook groups, and Discord servers until I found a pattern.


The key: Don't build something cool. Build something useful. If 10 people tell you "I'd pay for that," you have a business.


Day 3: Write the Brief, Not the Code

Before touching any AI tool, I wrote a 1-page project brief:

  • Who is it for?

  • What does it do?

  • What are the 3 core features (and nothing else)?


This brief became the "prompt" for everything that followed. AI is powerful, but without direction, it builds garbage.


Day 4-5: Build Feature by Feature

Using Cursor, I described each feature in plain English and let the AI generate the code. When something broke, I described the bug in plain English too.


The trick most people miss: don't try to build the whole app at once. Build one feature, test it, then move to the next. AI handles complexity much better in small chunks.


Day 6: Deploy

Vercel made this stupid easy. One command to push the code live. Domain connected. SSL handled automatically. Total time: 20 minutes.


Day 7: First Sale

I put up a simple landing page, shared it in the communities where I'd done my research, and got my first paying customer that afternoon.


The Math

  • Total cost: $20/month for Cursor + $0 for Vercel's free tier

  • Time invested: ~25 hours across 7 days

  • First month revenue: $340

  • Month 3 revenue: $1,200+


This isn't a flex — it's proof that the barrier to building software has collapsed. The only thing standing between you and a working product is knowing how to communicate with AI effectively.


That's a skill. And it's learnable.


I broke down my entire process — from finding ideas to deploying and selling — inside The Vibe Coding Masterclass. 18 lessons. 5 modules. Everything I know about building apps with AI, structured so you can go from zero to launched.


If you've been sitting on an app idea, stop waiting. The tools exist. The playbook exists. You just need to start.