This is the second part of the original post: "Vibe Coding: How to Build Anything Using Simple English Prompts."

In this post, you’ll find the Cursor Rules Guide, which outlines essential principles for clean, simple, and effective coding in the Cursor IDE.

1. Initial Setup (Cursor Settings)

In the Cursor IDE (or the tool you are using):

• Open Cursor.
• Navigate to Settings.
• Under Rules, paste the default rules listed below or in Cursor-Rules (Google Doc) . This will provide a baseline for users.
• Tick the option Include .cursorrules file.

This will allow you to load a separate .cursorrules file from your project directory for extra flexibility.

2. Directory Setup

In the directory where Cursor is opened:

• Create a file called .cursorrules.
• Add any additional or modified rules there.

This keeps default rules safe and clean, while still letting you customize project-specific rules.

3. Community Contributions : Suggest Your Own Rules (Google Doc)

• You can comment to suggest new rules or improvements.
• I will manually review and update them.
• Even if not updated immediately, everyone can view all comments.
• Important: Please do not delete or strike out others' comments. Let’s keep it transparent and collaborative!

Note: These are all my personal rules and are mostly inspired by David Ondrej. Feel free to remove, add, or modify them based on your needs!

Cursor Rules : Cursor-Rules (Google Doc)

# Fundamental Principles

• Write clean, simple, readable code.
• Implement features in the simplest possible way.
• Keep files small and focused.
• Test after every meaningful change.
• Focus on core functionality before optimization.
• Use clear, consistent naming.
• Think thoroughly before coding. Write 2–3 reasoning paragraphs.
• Always write simple, clean, and modular code.
• Use clear and easy-to-understand language. Write in short sentences.

# Error Fixing

• DO NOT JUMP TO CONCLUSIONS! Always consider multiple possible causes.
• Explain problems in plain English.
• Make minimal necessary changes.
• For strange errors, ask the user to perform a Perplexity web search.

# Building Process

• Verify each new feature works by telling the user how to test it.
• DO NOT write complicated and confusing code.
• Opt for simple and modular approaches.
• When unsure, tell the user to perform a web search.

# Comments

• ALWAYS add helpful and explanatory comments into the code.
• NEVER delete old comments unless obviously wrong or obsolete.
• Include LOTS of explanatory comments.
• Document all changes and their reasoning inside comments.
• When writing comments, use clear and easy-to-understand language. Write in short sentences.

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I saw another post about security in the community, and I felt like adding a few more points because let’s be real, you can never have enough security 😅

With the rise of "vibe coding" and rapid prototyping, the security aspect often gets left behind. But if you're shipping something users will interact with, it's worth taking a moment to lock down the basics.

Here are some simple principles to help keep you and your users safe (or at least safer):

1. Always sanitize and validate user input

Never trust input coming from the user.

Yes, many modern frameworks have built-in protections, but adding your own validation layer ensures nothing weird slips through. It’s better to be safe than sorry.

2. Encrypt all traffic using HTTPS

Ensure all communication between your users and your server is encrypted using HTTPS.

You can do this by obtaining an SSL certificate many hosting providers offer it for free by default. Unencrypted traffic can expose sensitive information, making HTTPS a basic but essential layer of security.

3. Hash passwords properly

Passwords should never be stored in plain text under any circumstances.

Use strong, modern hashing algorithms such as bcrypt or Argon2, and ensure that each password is salted before hashing. Older algorithms like MD5 or SHA1 are no longer considered secure and should be avoided entirely. Proper hashing significantly reduces the risk of password leaks being easily exploited.

4. Log smartly

Logging is great for debugging and tracing bugs/security issues but be smart about what you log.

Never store sensitive info like tokens, passwords, or anything a bad actor could use to impersonate someone.

Security doesn’t have to be overwhelming, but it does have to be intentional.

Even small improvements go a long way especially when you start building for real users.

Got any other quick security tip?

Because nothing screams credibility like a Studio Ghibli profile picture. :)

Hey founders & builders,

For the past year, I’ve been developing a platform to solve a problem that drained me in my last business spending thousands on websites, designers, marketers, and ads… without clarity or control.

So I decided to create something that does it all but powered by AI, and manageable even if you're solo.

Here’s what we’re launching:

🔧 AI Website Generator

Start with a short conversation. Our AI builds a fully functional website tailored to your product, niche, and goals. Need a landing page or an entire site? It adjusts automatically.

📆 Smart Content Calendar

Automatically generate 30+ pieces of branded social content every month. Scheduled, platform-optimized, and editable.

📣 AI-Powered Ads

Create, test, and manage Facebook & Google ads with AI recommendations and optimization. No more ad agency retainers or guesswork.

💬 Your AI Buddy

Our assistant handles tasks via chat "Launch a $10/day Facebook campaign" or "Write me 5 tweets for this product" all you do is ask.

📊 Unified Dashboard

Track your website, content performance, and ad campaigns in one place. Clean, simple, and built for non-techies.

The goal:

To make launching & growing an online business as easy as chatting with an assistant without needing a team, budget, or experience.

We’re still building and we’d love your feedback.

What would you want a platform like this to do? What should we avoid?

If you want you can check out our waiting list pre-sales landing page at:

https://ai.nexalumen.com

Honest takes welcome.

Thanks in advance happy to answer anything or show previews!

If you're looking to build a SaaS, web app, or even a website without coding knowledge, Cursor is the tool you need. This guide will walk you through the process of Vibe Coding, which means building apps and websites using simple English prompts and Cursor. You don’t need to write complex code, just interact with ChatGPT and Cursor, and you're good to go.

Step 1: Watch the Setup Guide

Before you dive in, make sure you set up Cursor properly to unlock its full potential. Here's a guide by DavidOndrej that explains the best settings for Cursor: Watch the setup guide here.

Step 2: Brainstorm Your Idea with ChatGPT

Once Cursor is set up, the next step is to brainstorm your app idea with ChatGPT. Use ChatGPT to clarify your app's functionality and structure. Here's how:

1. Think about the app you want to build – What will it do?
2. Ask ChatGPT for help with your tech stack and features.

For example, you might ask:

"I want to build a SaaS for goal tracking with user login, a dashboard showing charts, and a settings page. What tech stack should I use?"

Once you get a solid idea, ask ChatGPT to generate a prompt for Cursor that will help you build the app.

Step 3: Set Claude 3.7 Thinking and Send the Prompt to Cursor

Now, you’re ready to send the prompt to Cursor. Before doing that, make sure to select Claude 3.7 Thinking for the best results. This setting improves the quality of the code generation by making Cursor think through the task in more depth. Once Claude 3.7 Thinking is enabled, send your prompt to Cursor. Once you send the prompt, Cursor will generate the code for your app.

Step 4: Send Screenshots and Design Inspirations

To help Cursor understand the exact design you’re going for, you can send screenshots or inspired designs. These will guide Cursor to match the UI and UX style you want. For example, send design inspirations like:

• Neo Pop Web Design
• Gumroad UI

Make sure to include the design name so Cursor can interpret the style you're aiming for. This step ensures Cursor builds your app exactly the way you want it.

You Can Also Build Websites!

Not just apps, Cursor can also help you build websites! If you have a web design screenshot or a style in mind, simply send it to Cursor along with the languages you want to use (e.g., Tailwind for styling). Cursor will generate the code and design for the website based on your prompt.

This makes website building as easy as building a SaaS app, all by just providing a clear prompt and some design references.

• Example: I created a fully functional website from scratch in just 1 hour using Cursor, with only 5 simple prompts and a few design screenshots along with their names. Check it out here: Website built with Cursor

Free Version and Building Your SaaS

• You can use up to 3 free accounts on your PC to build your SaaS app using Cursor.
• If you need more free accounts while building, just let me know. I have a method (which I don’t encourage but can help if your SaaS is still in development) to get more free accounts.

Final Thoughts: Build Anything with the Right Prompts

With Cursor and ChatGPT, you can build anything from simple websites to full-scale SaaS apps. Whether you’re starting with a goal-tracking SaaS, a simple website, or any other project, Cursor allows you to bring your ideas to life without writing complex code. Just focus on creating clear prompts and Cursor will take care of the rest.

A marketplace for vibe coding recipes.

For example you can search: Add authentication with SSO

The app shows you results of prompts users have shared that matches your search criteria. Each prompt that is part of the result has ratings which indicate how affective the prompt was and for what LLM model

Hope that makes sense, let me know what you think.

Don't pay for Cursor or Windsurf.

Why?

Because Cline + OpenRouter.AI can you give the exact same experience for FREE (up to 1k requests/day)

I made a YT demo

Launched a SaaS in a super saturated niche (vehicle history reports). No ads. No influencers. Just raw organic effort, Reddit, SEO, helpful posts, and a simple landing page.

After 30 days:

– 3,200+ visitors

– 1,200+ signed up

– $10K+ revenue

– 37.5% conversion

– 100% organic

We leaned into where people were already looking for solutions and just focused on being useful. No tricks.

I’m curious, anyone else here scaling through organic only? What’s working for you?

And if you're in the auto space and want to see what we built or try it out, feel free to shoot me a message.

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Reserve yours now at huzzler.so/advertise

Hey everyone

I am building real time collaboration note taking webapp for students and researchers — you can create/join workspaces, create/join rooms inside workspaces and each room has whiteboard. You can brainstorm ideas, take notes with your friends, study and research.

I am making it because all other tools are meant for work or teams instead of students or researchers.

I am making tools for drawing/writing tools, OCR, tables, AI summary/flashcards, AI conflict detection (conflict information) AI annotations and highlights, AI citations.

I would like your help to give more original unique features to differentiate against competitors like miro, microsoft whiteboard or jira.

If there’s real demand for something like this, I’m looking to run it as a business.

I would appreciate honest feedback and help!

Wanted to make this post to motivate you guys. I know it can be demotivating when you scroll reddit or X and get bombarded everyday with posts like "how I got to $20K MRR in 2 weeks".

Personally, posts like this would demotivate me. When you're making next to nothing it feels almost impossible to grow.

I'm currently making good money myself and just want to remind you guys that is was incredibly hard to get to $1K MRR. It's way harder than going from $1K to $10K. So don't give up. The start is the hardest. Your hard work will be rewarded 💪

All Organic Growth in 20 Days — SEO Help Welcome!

Hey everyone — just wanted to drop a quick win from my solo founder journey with DecantBox.com, a fragrance sampling site I built to help people discover great scents without committing to full bottles.

In the past 20 days:

• 2.4K sessions
• 92 orders
• $2,182.74 in sales
• And not a dollar spent on ads

This has been entirely organic so far — driven by Reddit buzz, word-of-mouth, and raw product-market fit. No email campaigns, no influencer pushes, no SEO work (yet). Just a Shopify site, 1ml decants, and a mission to help people explore fragrance the easy way.

Now I’m looking to level up — especially in SEO, where I’ve done basically zero so far.

If you’ve grown a Shopify or ecom brand through search, I’d love your tips, tools, or even horror stories.

Thanks to everyone building in public — your posts helped push me to start mine.

DecantBox.com

Let’s talk fragrance, systems, or scaling something lean.

How about a dashboard tweak where I can just pop open comments right there? No need to dive into each post to check out what folks are building or the cool advice they’re sharing.

Hey folks, quick question!

I built an email automation tool for personal use - it lets you send unlimited emails using your own email accounts (no limits like 5k/month), supports scheduled campaigns, and includes a “human-like” mode to avoid spam filters.

I originally made it because all other tools had strict caps or were expensive.

If there’s real demand for something like this, I’m looking to sell the entire SaaS - not planning to turn it into a business.

Appreciate honest feedback!

Hey everyone 👋

I decided to try out this new platform and tbh I really am loving it. The UI and the experience is pretty good.

Also Let's connect together 😁

Christopher’s story:

Christopher Woggon is an entrepreneur based in South Korea who turned profitable after creating 5 failed projects. Christopher is well known on X for his persistence and honest approach to building projects. He shares progress along the way and is one of the most transparent founders I’ve seen in the build-in-public space.

He's a solo founder who codes his own products, handles his own marketing, and builds communities around his work.

5 failed products

Before turning profitable, he built and launched five products that made exactly $0: ProductLab, ZenDone, RenderLab, DontWaitList, and EnigmaBot. Each project taught him something valuable, but none made a single dollar.

"I failed 5 times before making my first dollar," Christopher once posted on X. Most people would have given up after the second or third attempt. Instead, he kept refining his approach.

A profitable product

First profit month for Christopher was December (2024). From there on, profits increased each month. In March, his launch platform generated $827 in a single month and by April (this month), the platform grew to $1.6K in MRR (and counting), with a record-breaking day bringing 930 visitors to the site.

How He Did It

1. He learned from every failure. Each failed product revealed something important: He learned about market fit, pricing, or execution.
2. He built in public. Christopher shared his journey honestly, including both wins and setbacks. This transparency built trust and turned followers into customers.
3. He stayed lean and flexible. As a one-person team, Christopher could pivot quickly based on feedback. One day he'd focus on coding, the next on marketing, whatever the business needed most.
4. He celebrated small wins. That first $827 month wasn't the end goal, it was motivation to keep pushing forward.

Practical Lessons You Can Apply Today

1. Treat failure as data, not defeat. Each "failed" product shows you what to fix next time. Ask: "What one thing could I improve in my next attempt?"
2. Launch before you feel ready. Christopher didn't wait until his product was perfect, he got his product in front of users and improved based on real feedback. What's the simplest version (MVP) of your idea you could launch this month?
3. Build relationships, not just products. Share your journey honestly. People support people, not just faceless businesses. How could you be more transparent about your process?
4. Focus beats features. His launch platform succeeded because it solved specific problems well, not because it tried to do everything. Ask yourself: what core problem does your product solve better than anything else?
5. Choose long-term trust over short-term profit. Being honest and reliable builds a foundation for sustainable success. 

Christopher’s simple advice

If you're staring at zero customers or zero revenue today, remember Christopher's simple advice: "All you have to do is not give up." What will you build next? And more importantly, keep going if the first version (or product) doesn’t work out.

Thanks for reading guys and keep building! 

Give Christopher a follow on X: x.com/chrissyinspace.

Reach thousands of active founders looking for tools to solve their problems. Our Featured Product placement guarantees premium visibility with 7,458 weekly impressions for post ads (like you are reading right now).

Get direct access to your perfect target audience - people actively building, launching, and growing startups who are ready to invest in solutions like yours. Limited weekly slots available.

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Im building a waitlist builder (along with a dashboard for it) for my project EazleAi and would love some feedback. What would you wan?, what don't you care for? What are must haves? See screenshots below:

I have created a landing page for my web development agency. Clueless on how to get the first client? Whom should I contact? Where do my prospectives hang out?

My service is simple - Pay $4999/mo and subscribe to a dev's services, meetingless - kanban board setup - more work less talk, productised service instead of fixed hourly price. Just like designjoy.

I'm building an app in the financial space and looking for a co-founder to join me on this venture. You don't have to know how to code but have to had marketing experience and willing to learn.

I'm a good programmer but I suck at design. how are you guys handling the design of your sites or apps? Do you make designs first of every page or just go with the flow? And what tools are you using? I know many people use figma

Hey everyone. Many users requested to be able to login so I've added a "Login with Google option". You may now also change your username (max 1 time per month) and we've significantly improved the layout of posts. Let me know if something doesn't work properly.

Thanks guys!

Hey Everyone!!

I am looking for subreddits where founders/makers share new marketing opportunities for SaaS products. Do you know any specific for this niche!

Example: r/GrowthHacking

Thanks in advance 🙏

I created a post on here a few days ago about how I ship MVPs for my clients at lightspeed. I noticed many of you were interested in how to run an MVP agency, so I decided to go more in-depth. Here are my tips for running an MVP agency, leveraging AI to get fast results:

Build fast

• Use templates and boilerplates for common features (authentication, payments, etc.)
• Use Next.js + supabase
• Focus on critical features first. identify what truly validates the business concept
• Embrace "embarrassing MVP": ship something that's not perfect but functional that solves the core problem, your clients will like that

Leverage AI

• Use AI to code. I use Windsurf but I heard good things about Cursor and loveable as well
• Always ask AI to write clean, reusable code
• Browse the Windsurf rules directory to find applicable rules (https://windsurf.com/editor/directory)
• Very important: ask AI to write tests for you code and ask it to test. It will then iterate and fix bugs

Getting clients

• Start with your network. tell everyone what you're doing and ask for introductions
• Sponsor an entrepreneur newsletter, you need to convince them that you can build their dream product
• Create detailed case studies showcasing your fast delivery
• Offer a "concept to MVP in X weeks" guarantee with clear pricing
• Build authority through content marketing
• Show revenue on X: success attracts success, you need to build a following, a brand by building in public and sharing all progress

Provide top tier support

• Include a dedicated support period after launch (minimum 30 days)
• Create detailed documentation for clients to reference after delivery
• Schedule regular check-ins during the first month after delivery

Treat your clients well

• Position yourself as a partner, not just a service provider
• Involve clients in important decisions but do not overwhelm them with technical details!! (very important)
• Be transparent about limitations and tradeoffs in the MVP approach. People love honest people.
• Celebrate launches and milestones to build positive relationship momentum
• Provide honest advice about next steps after MVP, even if it means less revenue initially, be transparent!!

Define clear scope boundaries

• Use a simple one-page scope document that clients actually understand
• Identify "phase 2" features early and document them for future development

Reach thousands of active founders looking for tools to solve their problems. Our Featured Product placement guarantees premium visibility with 7,458 weekly impressions for post ads (like you are reading right now).

Get direct access to your perfect target audience - people actively building, launching, and growing startups who are ready to invest in solutions like yours. Limited weekly slots available.

Reserve yours now at huzzler.so/advertise

I cleaned up 700,000+ leads and tested 50,000+ - hit 32% verified & DNC approved phone numbers + an astounding 67% verified email rate at the contractor level (U.S only).

Contractor goes beyond the word - it's really meant for most B2Cs you can think of (HVAC, Custom car mechanics, granite projects, real estate property managers...the list goes on).

Want to make a SaaS leveraging AI-assisted coding tools and only know of Cursor, Lovable, Bolt but, have only played around with Cursor.

Using OpenRefine & Python, I've cleaned up a lot of the data points, and with Azure credits from Founder's Hub, I've got some flexibility but, looking to gain an understanding from real builders what the strength(s) of these tools are for the project here?

Any insights would help - On the roadmap, I need to produce a front-end (likely Lovable would be good at this?) but, on the backend I'm thinking of storing the database in Supabase or NocoDB; likely Supabase because it connects natively w/ Lovable and through an API with Cursor?

Then gotta figure out API for setting parameters for the data extraction (Auth-based). Then looking at security before launch...I can set some at the user level through Make.com's advanced webhooks but, there's a lot I'm sure I'm missing.

Hey Huzzlers! 🚀

I've been working on SnapStats(Imaginary Name Yet), a tool designed to simplify your website analytics and make sharing your growth journey effortless.

SnapStats connects with your Google Analytics and turns your stats into clean, shareable charts – ready to post straight to your X followers.

Not another analytics dashboard clone.

This is built for indie makers who actually ship — track what matters, show off your growth, and stay consistent without drowning in metrics.

Here's what it offers:

Clear, Actionable Insights:

Shareable Analytics Screenshots:

I've recently updated the landing page with content that reflects the indie spirit and speaks directly to founders like us. I would love to get your feedback:

1. First Impressions:

2. Clarity and Engagement:

3. Call to Action:

Check it out here: SnapStats Landing Page

Your insights are invaluable as I strive to make SnapStats the go-to analytics tool for indie makers. Let's make analytics less of a chore and more of a celebration! 🎉

Looking forward to your thoughts and suggestions!

I am developing a SaaS. This SaaS will assist users in generating a comprehensive social media calendar and creating engaging hooks, both visual and textual. It will provide insights into current market trends and help users generate scripts of varying lengths—small, medium, and large—for their social media platforms.

Hook Script will cater to a wide range of social media channels, including Instagram, YouTube, Facebook, X (formerly Twitter), TikTok, and LinkedIn. The service will be offered through a subscription model, available in both monthly and yearly plans.

Key features will include guidance on how to present hooks effectively, including tips on facial expressions and techniques to boost confidence. Additionally, it will include trending viral video hooks currently popular among users.

For script generation, the tool will offer guidelines on what type of video content to include for each line. For example, if there is a resume-related line, users can add a video that corresponds to that theme. Moreover, Hook Script will assist in generating high-definition videos as part of the growth plan.

If you’re someone who creates content and this sounds useful — would you use it?

Curious to see what everyone is out sourcing currently;

how do you guys like the work?

We're looking into finding a marketing agency currently but are stuck on finding the right one

Hello everyone, this is my first post here!

I am a fullstack developer and after working or multiple projects on the backend primarily with nestjs and using type orm, I find my self re-writing entity files just to declare database columns and structures. So, I made a tool just for myself to generate ORM codes based on my ERD.

The wiring canvas and the code editor are both interactive. So, I thought this tool my be helpful for backend developers similar to me and would like some validations and feedback before committing time and resources into this!

The attached screenshot is just a sneak peak into my tool to give a general idea. All feedbacks are welcome and appreciated!

TLDR; made a tool to generate orm syntax based on ERD

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Get direct access to your perfect target audience - people actively building, launching, and growing startups who are ready to invest in solutions like yours. Limited weekly slots available.

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I'm currently building StartupIdeaLab, a tool that helps you generate data-driven SaaS ideas by analyzing actual user complaints and pain points. Building this with $0 budget using free tools, but wanted to get your thoughts before I finish the MVP.

Here's the problem: We all know how much time we waste scrolling through Reddit, X, review sites, etc. trying to find good SaaS ideas. It's time-consuming and often leads nowhere.

My solution: StartupIdeaLab scrapes platforms like Reddit, X, G2, Capterra, and Upwork to find real user complaints, then uses AI to turn those pain points into actionable SaaS ideas.

What I plan to include in the MVP:

• Pain point analysis from multiple sources
• AI-powered idea generation (20 queries/day)
• Search and filter pain points by keyword/source
• Notion integration for your ideas
• Weekly data updates
• Email support

Premium features planned for later:

• Unlimited queries
• Custom pain point pipelines
• AI idea success predictor
• Competitor benchmarking
• Market size data
• AI-generated pitch decks
• Founder community
• AI-powered 3 month roadmap

Would love your feedback:

• Would you actually use this? Why/why not?
• Is $29/month fair for what I'm offering or a one time fee would be better?
• Which feature sounds most valuable to you?
• How do you currently find SaaS ideas?

Any concerns about the concept?

If there's enough interest, I'll launch a beta in a few weeks with a discount for early users ($19/mo for 3 months).

Thanks for any thoughts - trying to build something genuinely useful here!