My First Vibe Coding Hackathon

This past weekend my company did their first vibe coding hackathon. If you're not familiar with vibe coding, it's a new craze where you let AI Agents code your entire application and you just prompt the AI with "vibes." Pure vibe coding requires having zero coding knowledge, but developers have started finding ways to have the AI do most of the code writing while they review and analyze the output and make tweaks when needed.

Over the weekend, we were asked to use Replit and their AI Agent to create a working prototype of a useful application. The top 3 applications would be given money to the company store (which I personally enjoy since there are some quality items there) and we could present our applications to the company leadership. I threw my hat into the ring because why not! I hadn't vibe coded yet, but it would be good to know what's out there and the current state of AI.

This post won't go into the nuts and bolts of the app, but in about 7-8 hours I was able to build a working application that was 90% functional. It was a feature request tool that allowed your customers to request features they'd want to see in internal applications developed at their company. I took this idea actually from Compass Real Estate, where I used to work. They allowed their real estate agents to submit feature request for the Compass software tools. Much like Compass' tool, users of my application could:

• Submit feature requests
• Upvote other people's requests if they liked them (Reddit style)
• Comment on feature requests
• See new requests submitted in the past 48 hours
• Review previous completed requests

Administrators had a special Admin Center page where they could:

• Perform all the tasks in the above list
• Consolidate duplicate feature requests
• Add special "Admin comments"
• Delete feature requests
• Update the development status of feature requests

A screenshot of the main application page is below:

A screenshot of the admin center is below:

What I learned about Vibe Coding

AI Agents are not bad. They are not experts yet, but they do a pretty good job getting a basic application spun up really quick. This whole application took me two days, but really I spent 7-8 hours total doing everything. 

A lot of that 7-8 hours though was time spent waiting on the AI to finish analyzing, coding, reviewing, and processing all the changes I would request. While the AI is pretty good, it still can take 5-10 minutes to make a change, especially as the code base increases. 

Another good chunk of the time was taken up fixing bugs introduced by the AI when working on something completely unrelated. Several times the AI would mess something up in the application that was completely removed from what it was supposed to be working on. For example, when I had it work on the left-side navigation bar of the Admin Center, it also put the Update Status, Consolidate, and Delete button in one inline row and changed the button label for Update Status. Why??? I spent about 20 minutes getting the AI to fix the buttons without hurting anything else.

The AI Agents was not able to get the Search functionality working perfectly. I ended up flipping back and forth between two bugs in the search tool. When I fixed one issue, a second bug would appear. When I fixed that second bug, the first one came back. After a few rounds of that, I got the search working as best I could and left it at that. At the time of this writing, that is an active bug.

Another thing I learned was the AI is very verbose with writing code. This application has to be several thousand lines long. I feel like a human software engineer could write this in half the lines. But one nice thing about Replit's AI Agent at least is that it would give you an outline of what it was doing and give you a hyperlink to go in and check the specific file it is working on. I feel like if I was not rushing and trying to create as much as I can in one weekend, that is a very useful feature in the AI logic.

Overall Thoughts

Overall I felt more like a Product Owner this weekend and not a developer. I certainly didn't personally build this application, but I provided the ideas, creativity, prompts, and analysis that gave the application the look and feel. I wonder if that's what the developer profession will be one day - a world where we will all be product owners of some sort just requesting changes and troubleshooting manually when needed. Or maybe humanity will think "nah, this sucks. We want humans!" I hope it's the second option. 

Right now, the Agentic AI could get me nearly there. But it can't get this application to 100%. Advances are being made, and I'm sure in the future AI will be better and quicker. However for now, you still need some humans around. And I hope coding doesn't lose it's humanity any time soon.

PegaWorld 2025 (and my general thoughts on AI in 2025)

 

PegaWorld was a few days ago, and once again it was a huge blast. I'm fulfilling a promise to myself to actually write about it this year after neglecting to last year. I'll include a few things from 2024's edition though, as this year was sort of a sequel to the events from last year.

AI is here, and even low-code tools (which already do most of the code writing for you) are embracing it to the max. Last year, Pega announced several AI tools coming to their platform and this year followed up with the newest fad in AI - Agentic AI. For a platform that focuses on processes and workflows, I suppose this fits.

The conference itself

The conference itself, once you can get past some of the cheesy humor and jokes during the keynotes, is actually pretty fun. Alan Trefler's talk was a great introduction to the conference, and the point I took away from his talk was that you cannot stuff just any AI into a solution and think you will be okay - you need to use the right AI for the right problems. He compared it to attempting to use Chat GPT to help him with a chess puzzle. Chat GPT could not solve the problem, and instead gave Alan several incorrect/illegal moves in chess. As soon as Alan went to another AI that specialized in chess, it was solved in under two seconds. Thus begins a conversation about Pega having the right AI to solve workflow automation problems.

For the developer though, the keynotes are nice and some of the workshops and breakaway sessions can be really useful. But going to the innovation hub and seeing the new capabilities in action, talking with Pega engineers that built and specialize in that tool, and seeing how it can fit what we do on a day-to-day basis is the best part of the conference. I was able to meet some folks who are trying some new ideas in the Pega community, and I was able to learn about automated testing and network with people who have found creative ways to do it in Pega (a sticking point for our team right now).

I came back with several takeaways from the conference:

1. Become a bigger part of the Pega community
2. Pega Blueprint has changed quite a bit since being announced last year - I need to retrain myself on it and check out the latest updates.
3. I want to learn more about automating testing within Pega via code scripts and accessing JSON files via their API.
4. Pega Insights is a cool tool that we currently under utilize in our app at work - maybe we can use it?
5. There will (hopefully) be a small Pega event in my city later this year, so I look forward to going to that.
6. Pega recently released a whitepaper on AI in Operations, so I've downloaded that and plan to read it in the next week.

My AI thoughts in general

This conference both has me excited for the use of AI in application development and also terrified for the world we are creating. One of the Pega keynotes introduced their newest intern, Iris. Iris is a young girl who started working for Pega this year. She's fully remote, lives in Europe (Pega has a solid presence there, especially in the Netherlands), and has become a top contributor who has helped their employees with admin tasks - the type of stuff interns typically handle.

She's made mistakes on the job, as any person would. But to be frank, she's probably more of a professional and less green than I was when I was an intern. Iris loves her work, she loves where she lives (I believe it was an island with a northern lighthouse in the Netherlands?), and she enjoys working with her colleagues.

And as you've probably already guessed, Iris is also not real. She's completely made up - an artificially intelligent agent. 

On the one hand, this is cool. We've gotten to the point where computers can talk to us and be hyper-realistic. She has an employee picture, Pega employees refer to Iris with the she/her pronouns, and she has a personality that seems to make her human. 

But I cannot help but think we are starting to automate ourselves out of work. Right now, Agentic AI is being billed as the AI that will help you do the tasks you don't want to do. That's nice. But did Iris fill in a gap that would have been filled in the past by a real college intern? How about when Agentic AI gets to the point where it can do entry-level jobs - how long will it be when a CMO or VP of Finance decides that the entry level marketing or finance position can be handled by an Agentic AI instead of hiring a real human to do the same work? Because let's be real: computers have always been faster than humans at tasks that computers are capable of doing.

We're not far from this reality. Agentic AI, and AI in general, has made a lot of strides in the past few years since GPT 3 was announced to the world. And now, we have companies like Artisan in San Fransisco running marketing campaigns to stop hiring humans and instead hire their AI for massive cost savings. (Their marketing campaign is a sad one at that, purposefully created to make people angry and gather likes, clicks, impressions, etc. They should not have been rewarded for that, but alas here we are.)

All that to say, we may be coming to a point where we have to make some decisions with AI. How far are we willing to go to use it? Are we willing to let one AI handle the job of several people for the cost savings and speed? How many jobs are we willing to replace with AI if so? If all companies get on board with this, how quickly does it take us to automate 30% of the workforce out of a job? Will we make decisions today that harm the community at large over a long period of time in order to report good earnings and cost savings for the next quarterly investors call?

You can probably tell where I land on this. 

I was going to write about this in a separate post, but PegaWorld both last year and this year had me leaving with these apprehensions. I didn't come away from these keynotes fully excited for the future we are currently creating. I hope I'm wrong about it, I hope that companies still keep people employed and AI doesn't contribute to the death of several valuable industries and jobs. But after observing the past few years, I get ever so closer to feeling that we're all beginning to hand our jobs over to the control of just a few AI computers.

Creating an application using Vite

Up until recently, you could create a React application using Create-React-App. It was a lightweight way to create React applications quickly and was supported by the React documentation. Create-React-App has been discontinued - it will still work I suppose, but it is no longer the recommended way to create React applications.

I first came across Vite while going through freeCodeCamp's new curriculum. About a week later, while furthering my React studies on Scrimba, they also suggested using Vite as a worthwhile replacement. After building a few projects, I definitely agree.

Vite is a build tool for creating React applications. Of course, I could try to create my own React applications using no build tool, but that can take a long time and there are many files to configure. If someone else has done this work already, I'm going to take advantage of that! 

In order to use Vite, you need to install Node.js if you haven't already, and it needs to be a version higher than 18.0.0. Originally I had a higher version of Node installed (I think it was 22.0.0. or 23.0.0, I can't remember), and that caused some trouble with using Vite. Currently at the time I'm writing this, I'm using Node version 20.0.0 with zero issues.

Once Node is installed, do the following steps:

1. Navigate in your terminal to the folder you want your project to be stored in. For me, I usually change my directory to Desktop and store my project there.
2. Run npm create vite@latest 
3. This will start the tool's prompts. It will ask you just a few questions:
1. What is the project's name? 
2. What library/framework are we using? 
3. What language do you want to focus on? (For example, when I choose React for question #2, it will then ask if I want to focus on JavaScript, Typescript, or a few other options).
4. Once these questions have been answered, Vite will build out the project. At the end, it will give you three commands to run in a row:
1. cd <project-name>
2. npm install
3. npm run dev
5. That last command will be one you probably use a lot, as it is the command that starts up the live server so you can see your work rendered in the browser. I personally find myself starting and stopping the server as needed, usually when I need to use my terminal for something.

And that's it! In the folder you selected, your new Vite project will be created. At this point, you can go into the project itself and clear out all the default stuff (styles, text, images, favicons) and begin creating your JSX files, stylesheets, and link them together.

Documentation link: https://vite.dev/guide/

Watching Claude play Pokemon

Currently Claude is playing Pokemon Red on Twitch. It was hard to tell what game it was playing, since the color palette of the game is very colorful with reds, greens, blues, and different shades of others (much unlike the real games being played in a blue or red hue). Now that I'm reading the Twitch "about" section, I see they are using Danny-E 33 + FroggestSpirit's full color patch which helps Claude see the screen better apparently.

This looks to be a passion project, likely a Claude super-fan or someone from Anthropic doing this on their own time. This is an experiment to see if Claude can actually beat the game on it's own with no outside help. It can learn the game, develop strategies, develop a battle theory when fighting other trainers, have goals for Pokemon levels, and learn the maps to move around.

I'm pretty fascinated right now while watching. Claude is moving very slow. Veeery slow. But I'm reading the left-side thought process that Claude has while seeing the game on the right, and I'm thinking to myself "This is exactly what my 9-year old brain was thinking when playing this game for the first time." I had Pokemon level goals, I had certain strategies to beat Brock's rock Pokemon at the very beginning (I had yellow and found out the hard way that Pikachu has zero use in that gym fight). It's pretty neat now to see an AI developing these same goals.

But as I mentioned above, it's very slow. I suspect in 5-10 years we'll have models that can play this game much quicker. But it soon gets a little boring watching the stream intensely, and the game music gets repetitive when listening to the same Viridian Forest theme for 30-40 minutes.

I've given it a follow and will be lurking to see how far we get. At the time of this writing, Claude has made it to Pewter City, and it has one Pokemon above level 10. That's expected for a player who has just entered Pewter City but it looks like it has several hours of training before it's ready to fight Brock.

You can follow along here: https://www.twitch.tv/claudeplayspokemon

Making the most out of a meetup group in 2025

Yesterday I went to my first Programming meetup for 2025. A goal of mine has been to go to more of these this year. I went to one in 2024 and had a great time, then completely let it slide for the rest of the year. Not this year! There are a few meetup groups for software development who meet less than 30 minutes from my house, so I hope to visit both several times this year.

I saw a question on LinkedIn yesterday on a similar note which asks the question: "What are some actionable steps you can take to make the most out of attending a meetup?" That's a great question and one that I wanted to write a bit more in depth about. Going to a meetup group is essentially networking. It's very similar to conferences, but meetup groups are generally smaller. There may be conference-like presentations, or they may be more casual and people just show up, talk, and code, all while probably drinking some sort of coffee.

In my area, we have a Coffee and Code meetup which is perfect for me. It starts around 10am and goes until 1pm which is the perfect time for me and how I operate (I'm definitely more of a morning person). A little after 10am, we have a standup where we go around the circle and introduce ourselves, talk about any job openings we may know of, and what events are coming up that people can check out. Then we go back to our computers and either code, chat with others, or do little demos with folks on what we are working on and see what others are working on. I had a fantastic time meeting a gentleman who had built out a really neat event application for a non-profit's annual fundraiser. He showed me how he built the mobile app using XCode and Swift.

So what are actionable steps that I'd recommend to others when going to a coding meetup group? See below for a few pointers:

1. Go with a completely open mind. Who knows where your next connection will lead or who you will meet there. And this is also the first point I'm writing about, since I think all the other points below it can fit under this umbrella.
   
   
2. Don't think only about yourself. A mistake I made earlier in my career when "networking" was getting immediately benefits from networking and being in groups. For context, I was in sales and "social selling" had become all the rage. I'd show up to a group or connect with someone on LinkedIn and immediately try to get a sale without a relationship. Don't do this! People can sniff it out when you show up to a meetup only thinking about yourself and what you can "get." Instead, show up with an attitude of what you can GIVE to the group. Reaping rewards (new friends, a job opportunity, project collaborations) will happen with time.
   
   
3. Balance time working on coding projects and talking with people. I went to the meetup this past week for a little over 2 hours. I spent the first hour hacking away on my friend's website I'm building in React, and I spent the next hour or so talking to a few people seeing what they were doing.
   
   
4. Understand that you can contribute to the group no matter your coding experience. There were several people at our meeting this weekend who were JUST learning how to code. They knew some HTML, a little CSS, and were just getting their feet wet with JavaScript. But when they introduced themselves, they said they could help others with HTML and CSS. The point: even if you have just written your first line of HTML, you have something you can contribute or give to the group. Heck, just being there at the meetup and talking to others and listening to them explain their projects and passions is giving to the group. If you are new at coding, take some encouragement that you can contribute to a meetup group almost immediately.

I may revisit this post sometime in the future and add to it, but for now these are some basic points to remember with a meetup group. Don't be nervous or feel any pressure that you have to come away with something from the group. Just go and hang out with fellow programmers!

Reviewing HTML concepts and establishing a habit

 In my planner each week I write out three things automatically.

1. Some sort of motivational theme or (soon) a bible verse as my "theme of the week"
2. A task each day to exercise
3. 30 minutes of freeCodeCamp

Exercising is still something that I need to improve on the habit front. Last week was a bit of a downer, and I think partially it's because I didn't drink enough water, exercise, and eat healthy (hello popcorn for lunch twice).

But with freeCodeCamp, I've been able to establish a nice rhythm. Either in the mornings or during my lunch break, I'll set aside 30-45 minutes to work on the new full-stack developer content they recently released (linked in my previous blog post). I decided to just do everything in the cert, even though I've previously finished their HTML/CSS content and most of their vanilla JavaScript content. It's good review, and I'm a completionist I suppose.

And I'm glad I've taken time to review the HTML content. First off, it's been way more in depth than their previous courses. There is a much higher focus on accessibility and semantic HTML. A few things which have stood out:

• Presentational vs Semantic HTML: Presentational is older and includes elements that are no longer supported, and it's main focus is just on the look of the content on the screen. CSS has made most of these elements relatively pointless now. Semantic HTML involves using elements that are more descriptive in their purpose (as opposed to the older <div> element), and they are better for accessibility and website SEO.
  
  
• HTML Forms have four states:
• Default: which is editable
• Focused: when you're in one of the form inputs specifically (i.e. clicking into a text field and the box highlighting a blue border)
• Disabled
• Read-Only
• (The HTML Form states sort of mimic what I'm used to with Harness rules in Pega, so I found it interesting.)
  
  
• HTML Entities: these provide a way to write out certain symbols that are usually code in HTML. For example, if I want to write out <div> in HTML text, without HTML entities I cannot accomplish this because the browser will think I'm trying to start a new <div> container. With HTML Entities, I can use a combination of letters and/or numbers to have the browser render symbols like < and >. These combinations are called references:
• Named character references start with "&" and end with a ";"
• &lt; is the < symbol
• Decimal numeric references are similar but use numbers instead of letters
• Hexadecimal numeric references are similar but use hexadecimal instead

I'm currently going through the lecture video series for accessibility, which is a deeper dive into screen readers and tools that come native with operating systems to help with viewing or listening to content. Additionally freeCodeCamp is reviewing various peripherals like larger-text keyboards and different input devices like trackpads and mouse-balls and joysticks. All must be taken into consideration for modern development.

That's all I have for this week. I'm also glad I could sit down for 20 minutes or so and type this out this week. I want to blog (ideally) every week, so this week was a success!

Setting 2025 developer goals

2024 is behind us and 2025 is here. New year. Clean slate. Last year was my first full year as a developer and it was full of learning, moments of extreme doubt in my abilities, and some fantastic moments as well. To recap, I attempted the Pega SSA exam three times and fell one question short twice. At some point I plan to study and take the exam again, but I'll be taking some time off from that.

My overall personal goal in 2025 is using a planner for the full year and being more organized through consistent planner use. That sets up the foundation for smaller goals that I hope to achieve this year for myself, which are listed below.

So without much else to add, below are the developer goals I hope to achieve in 2025. Unlike last year, I'll try to keep the blog updated with my progress.

1. Blog more. This is sort of a gimme. I blogged just a handful of times in 2024, mostly because I was busy studying or working. Taking a break from studying will hopefully allow for more casual learning and time to write. My goal is one post a week, and I'll review at the end of January to see how that goes. I may adjust it in February if needed.
   
   
2. Work through freeCodeCamp's new curriculum. freeCodeCamp just released new updated content and have started focusing on free developer certifications. The content includes video lectures, workshops, labs, quizzes, reviews, and one large final exam. I'm very excited for this, and will probably write more about it in the future, but I think this is the type of setup I've been waiting for. Currently I'm in the HTML section doing review before moving on to CSS, but once we get to more advanced topics, I think this will be a massive help for my learning. Most blogs will probably be geared around new things I've learned while going through the certification program. While I won't be spending a lot of time each day on it (due to life and such), I'm going to be extending this into 2026 and hope to earn the certification during that year.
   
   
3. Pass the Pega SSA exam. This will be in the later part of 2025, but I want to attempt the SSA exam again and hopefully pass. It's not required for my job, but everyone else on the team has it at this point and I want to be able to say the same. Related, I'll need to renew my Security+ this year as well, as that's an exam I never ever want to take again!
   
   
4. Read more. I'm aiming to complete six books this year - an average of one book every two months. That's a good goal for me, but it's also something I can also surpass pretty easily. I'll be writing on some books I read this year here on the blog, so be on the lookout for some of those. I've started 'Chip Wars' by Chris Miller, which my manager read and said it was very good. President Obama as well mentioned this book as one of his favorites in 2023. But I won't be reading just tech-focused books. I hope to read a fiction book or two, or maybe some random non-fiction historical books. I'm taking it one book at a time.

So there we have it - these are the developer goals I'm shooting for in 2025. These are not resolutions, and they may not all happen. But it's something to work towards and share with others. 

What goals do you have for 2025?

Adding a modal to my portfolio page

As a note, at the time of this blog post, my portfolio site is at this URL: https://aaronmccollum.github.io/personal-site/. I plan to update it in the future with a custom domain, but I just need to buy it first. Also, in the future this site will probably change as I update it. So any pictures below may be outdated by the time you read this.

In the Codecademy career path for Full Stack Developer, one of the projects early on is to create a simple portfolio webpage that highlights your projects, and potentially includes a biography, picture, ways to connect on social media, and links to a blog (like this one). I've skipped some of the earlier Codecademy projects, since I've done similar things in the past, but this one was interesting and it was on my to-do list.

I mainly wrote it in HTML and CSS and did it in a night. I didn't wireframe it, but I did use Codecademy's sample site as a detailed wireframe of sorts. Here's how it looks:

 

It's pretty basic. I need to get rid of the underline for the Blog link, but other than that it's nice. When you hover over the links, there is a CSS animation rule that causes them to expand a bit - to add some fun little interactivity there.

One of the requirements though was to implement some JavaScript. For a site like this though, there isn't a lot of places to add it in a way that adds value to the page. Then it hit me - why not create a modal that appears when you click "Contact" that includes links to my social media page? That was a great idea! At my job, I've created a few modals already, but that uses low-code methods that are unique to Pega. How would I do it with HTML, CSS, and JavaScript?

Thank goodness for the internet. A quick search led me to this very useful guide from W3 Schools: https://www.w3schools.com/howto/howto_css_modals.asp

As you can probably tell, it's dated. The JavaScript uses var keywords and uses the .onclick method, both of which are older ways of declaring variables and adding event listeners. And the HTML isn't semantic - there is no <dialog> tag anywhere. As a note, I also didn't add a <dialog> tag in my HTML, but it's on my to-do list soon to get that updated.

The first thing I did was insert the HTML code. I updated some of the class and ID names to make it more related to my page. I added it around the top of the page, but due to the CSS rules hiding it, you won't see it by default.

I then went over to the CSS rules and added those in, making sure to update the rules to share the same names as my HTML classes and IDs. The CSS rules are great, but because the modal is hidden by default (and before the JavaScript is added, there is nothing to un-hide it), you won't be able to see it. Even if you click on the 'Contact' link at the top, no modal will appear. It's a ghost modal for now!

Lastly I added the JavaScript. Here is where I made the most changes:

• I updated all the variable declarations to use const
• I added my IDs and class names to the DOM calls
• I changed the .onclick methods to .addEventListener() methods instead, and used callback functions to cause the modal to appear and close
• I omitted the function to cause the modal to close if the user clicked anywhere outside the modal, as I didn't want that one (also, replacing it with the addEventListener() method doesn't work on it's own, which I'll need to figure out).

After testing it, I adjusted the size to make it smaller than 80% of the screen width, and I added some padding to make it longer after my social media icons were added. Below is how it looks:

The X will close out the modal, and the screen darkens a little to emphasize the modal. And each of these social media icons will link to my pages, so you can easily connect.

I'm pretty happy with this, and I will be using this project to build on future projects that require more complex modals. These are great for forms too - and next time, instead of an X, I can add a Cancel or Close button instead.