Vibe Coding Tutorial: Build a Real App Without Writing Code

TThe Coding Koala
Computing/SoftwareSmall Business/StartupsInternet Technology

Transcript

00:00:00So welcome to Vibe Coding 101. If you're someone who doesn't know how to code but still wants to
00:00:04bring an idea to life, maybe a portfolio website, a side project, or just something you've always
00:00:10wanted to build, this video is for you. By the end, you'll be able to build a real working platform
00:00:15without writing a single line of code. And if you are a developer, this video will also be helpful
00:00:21because sometimes you may just want something done quickly without over-engineering it. So in this
00:00:26video, I'll walk you through the complete process of Vibe Coding, the best practices at each step,
00:00:32and we'll build a real project together. For building our app, we will be using Abacus AI
00:00:37Deep Agent. This is my favorite platform for any AI-related task because with just one subscription,
00:00:43you can build apps, websites, presentations, and almost anything. I mostly use it for Vibe
00:00:50Coding because I have noticed it produces fewer errors and is very affordable compared to others
00:00:54that I have tried. I've included the link in the description, so make sure to check it out.
00:00:59So there are five steps to Vibe code an app properly. Most people already know these steps,
00:01:05but the problem is they don't know the best practices inside each step, which is why they
00:01:09get poor and inconsistent results from AI. So let's fix that. So the first step is the
00:01:14ideation phase. This is where you decide what you want to build. It can be your portfolio website or
00:01:19anything else. If you don't have an idea yet, you can also use AI to get idea suggestions. The one
00:01:25I'm using is Abacus Chat LLM, and it works really well for this. It automatically selects the best
00:01:31AI model based on the task, so you get better results without having to think about which
00:01:36model to use. Once you have an idea, the next thing you should do is write it down. Just open
00:01:42Google Docs or Word and describe your idea in plain language. What you're creating here is called a
00:01:47product requirement document. Don't let the name scare you. For Vibe coding, a PRD is just a one
00:01:53to two page document that explains what you want to build. This document will later become your initial
00:01:59prompt. I'm using a simple PRD template from this article. Thanks to the author, and also check out
00:02:05the article if you want to learn more about this. And if you want a Reddit to fill template, the
00:02:09download link is in the description. So let's quickly go through the sections. In the one
00:02:14sentence description part, just describe your app in one sentence. We are building an expense splitter
00:02:20website for this video. Our description can be something like this. The next section is for
00:02:25describing who this product is for and what problem it solves. After that, you will include a few main
00:02:31features of your application. And no need to be technical, just write what you want in plain
00:02:36language, and only mention the main features. The next section is for mentioning what not to build,
00:02:41so your project doesn't go out of scope. And if you are not sure, you can skip this for now.
00:02:47Next is the user flow section, which explains the main flow of the application. And this is also
00:02:52optional. And the last one is the success criteria section. Here you just mention the success criteria
00:02:58for your features. And this is optional too. And that's it. If this feels overwhelming,
00:03:03one shortcut you can use is just fill only the one sentence description,
00:03:07paste the template into chatllm, and ask it to complete the PRD for you. Once that's done,
00:03:13you're ready for step two. In this phase, you will choose a vibe coding platform and paste your PRD
00:03:19as the initial prompt. So it is very important to choose a good coding platform because obviously,
00:03:25if you want great results, you will need to use a great platform. So I will be using Abacus AI
00:03:30Deep Agent. All you need to do is copy your PRD and paste it into the prompt box. If you want your app
00:03:36in a certain design, you can upload the design file and ask it to use it as a reference. But remember
00:03:41that you cannot directly upload Figma file. The next way is you can just describe your design in
00:03:47plain language. Now hit send and wait. After you send the request, the agent may ask some follow-up
00:03:53questions. It's mostly non-technical, so just write your preference. In case you don't understand
00:03:59something, you can just ask AI to clarify what it means. After you send your preference, the agent
00:04:05will start coding your application. This is my favorite part because I can just scroll through
00:04:10some reels while watching it generate a code for me. A few moments later. Okay, so I think our app
00:04:17is ready. Now we are ready for the next step. This phase is all about testing the app, fixing bugs,
00:04:23improving design, or adding features. And this is where most people mess up. Before talking about
00:04:28that, let's quickly go through our platform. So our app is working well. Now let's talk about
00:04:58what not to do in this test and refine stage. One big mistake most people make is that they
00:05:04list everything that needs to be fixed and dump it into one giant prompt. AI doesn't work well
00:05:09that way. The best practice is to fix one thing at a time and be very specific in your prompt.
00:05:15Let's say a button isn't working. Don't write prompts like this. Instead, you can use this
00:05:20prompt template to fix your issues. Next, let's see the process of adding an additional feature.
00:05:25You already described features in your PRD. Reuse that same format. For example, on our site,
00:05:32let's add unequal expense splitting. Currently, when we create an expense, the cost is distributed
00:05:38equally. But with unequal distribution, I can control the cost per person. So as per our template,
00:05:44I have created a description for our new feature. Now let's go back to our agent and paste it. But
00:05:50before that, make sure to add this line, and then you can paste your description. Now hit send and
00:05:56let's wait. So our new feature is ready. Now let's test it. And everything looks good. So that's all
00:06:17in this step. Add one feature, test it and repeat. So there are still a few things I want to add
00:06:23before moving to the next step. First is don't hesitate to revert to old changes. So reverting
00:06:29to old changes means you go back to an older version of your code. They can be cases where
00:06:33adding a new feature or fixing a bug can result in other consequences. In that case, just prompt
00:06:39the AI explaining that the new changes broke the code and tell it to fix. This will work most of
00:06:44the time. But in case it doesn't work, it's best to revert to the older version. So the next thing
00:06:49I want to add is feel free to add additional changes to the prompt templates I have given.
00:06:54So that brings us to the next step. Final validation. After all the features are added,
00:06:59you will need to do a final test of your application. So nothing complex. Just go through
00:07:04your platform and test every feature. Make sure that every output is correct and every behavior
00:07:09is as expected. If you see any issues, go back to the test and refine phase again. And that's
00:07:14pretty much it's all about making sure everything works before making it live. So the last step is
00:07:20deployment. With Abacus AI Deep Agent, deployment is just few clicks. So to deploy your application,
00:07:27look for the deploy button at the top. Click deploy and you'll see three options. Use an Abacus AI
00:07:33domain, a custom domain, or a custom subdomain. Picking the Abacus domain means your deployed
00:07:40site URL will follow this pattern. If you go with a custom domain, you'll need to buy a domain and
00:07:45point it to Abacus via DNS settings. A subdomain is simpler. If you own a domain, you can use
00:07:51something like this as a subdomain without buying anything new. For now, let's just use the Abacus
00:07:57domain. Now give your preferred name and this will be your website URL after deployment.
00:08:03And congratulations! Our first Vibe Coded app is finally live. You can share this URL with others
00:08:09so they can also start using your app. So before you go on and create your own app, there is one
00:08:14final thing I want to add. Pure Vibe Coded apps are not ideal for large-scale commercial products.
00:08:20They are best for personal projects, small tools, prototypes, and limited users. That's because there
00:08:26can be security issues, performance issues, and also scalability limitations. If you plan to scale big,
00:08:32you'll eventually need developers. And that's it. The five steps of Vibe Coding with best practices
00:08:38that actually work. Make sure to check out Abacus AI Deep Agent. The link is in the description.
00:08:44If this video was helpful to you, make sure to like, share, subscribe, and comment your thoughts
00:08:49below. And I'll see you in the next one!

Key Takeaway

Vibe coding enables non-developers to build and deploy real applications by using structured documentation and AI agents to handle the technical implementation.

Highlights

Introduction to 'Vibe Coding', a method for building functional applications using AI agents without writing manual code.

The importance of creating a Product Requirement Document (PRD) to provide clear, plain-language instructions to the AI.

Using Abacus AI Deep Agent as a primary platform for generating, testing, and deploying web applications.

Best practices for the 'Test and Refine' phase, including fixing only one issue at a time to maintain AI accuracy.

Strategies for adding complex features, such as unequal expense splitting, by reusing structured PRD templates.

The simple deployment process using Abacus AI domains, custom domains, or subdomains to go live quickly.

A cautionary note on the limitations of vibe coding regarding security and scalability for large-scale commercial products.

Timeline

Introduction to Vibe Coding and Abacus AI

The speaker introduces the concept of Vibe Coding as a solution for non-coders and developers who want to build projects quickly. He explains that by the end of the tutorial, viewers will be able to create a working platform without writing any code. The featured tool for this process is Abacus AI Deep Agent, which the speaker praises for its affordability and low error rate compared to other platforms. This section sets the stage for the five-step process that ensures consistent results from AI. It serves as an entry point for anyone looking to turn a side project idea into a digital reality.

Step 1: Ideation and the Product Requirement Document

The first step focuses on the ideation phase and the creation of a Product Requirement Document, or PRD. The speaker suggests using AI like Abacus Chat LLM to brainstorm ideas and refine them into a one-to-two-page document in plain language. Key sections of the PRD include a one-sentence description, target users, main features, and what not to build to avoid scope creep. For those who find this overwhelming, a shortcut involves asking the AI to complete the PRD based on a simple one-sentence prompt. This step is crucial because it becomes the initial prompt that guides the AI agent's entire coding process.

Step 2: Choosing a Platform and Initial Generation

Once the PRD is complete, the user chooses a vibe coding platform and pastes the document as the initial prompt. The speaker demonstrates this using Abacus AI Deep Agent, emphasizing that high-quality platforms lead to high-quality results. He also mentions that users can describe their preferred design in plain language or upload design files for reference. The AI agent may ask non-technical follow-up questions to clarify the user's preferences before starting the code generation. This phase is automated, allowing the user to simply watch as the agent builds out the application's structure and logic.

Step 3: Test, Refine, and Adding Features

This critical phase involves testing the app, fixing bugs, and iteratively adding new features like unequal expense splitting. The speaker warns against the common mistake of dumping multiple fixes into one giant prompt, suggesting instead to fix one thing at a time. He provides a specific prompt template for fixing issues and another for adding features to ensure clarity for the AI. If a new change breaks the application, users are advised to revert to an older version of the code rather than trying to fix it manually. This iterative approach of 'add one feature, test, and repeat' helps maintain a clean and functional codebase throughout development.

Step 4: Final Validation and Quality Assurance

The final validation step is all about ensuring every feature works as expected before the application goes live. The speaker instructs users to go through their platform and thoroughly test every button, output, and behavior. This is not a complex technical check but rather a functional walkthrough to verify that the 'vibe' of the app matches the original intent. If any minor issues are found during this phase, the user should circle back to the 'Test and Refine' step to address them. Completing this stage provides the confidence needed to move forward with a public release.

Step 5: Deployment and Final Considerations

In the final section, the speaker demonstrates how to deploy the application using Abacus AI domains, custom domains, or subdomains. Deployment is presented as a simple process of clicking a few buttons and naming the project to generate a live URL. After celebrating the live app, the speaker adds a final disclaimer that vibe-coded apps are best for prototypes and small tools rather than large commercial products. He mentions potential limitations regarding security, performance, and scalability that might eventually require a human developer. The tutorial concludes by encouraging viewers to check out the links and start building their own vibe-coded projects.

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