New Winamp interface made 100% with AI and Uno Platform tools

Sébastien Lachance — Fri, 05 Dec 2025 05:42:02 +0000

This is a submission for the AI Challenge for Cross-Platform Apps - AI Acceleration

What I Built

My app is a revamp of the classic Winamp media player that was released in 1997. The technology of Uno Platform makes possible the creation of a cross-platform app with a single codebase. I challenged myself to create the complete interface with AI tools only.

My setup:
• Visual Studio
• Uno Platform MCP servers
• Uno Platform Hot Design
• GitHub Copilot GPT-5

Demo

GitHub Repository

AI Tooling in Action

Without the following video, it would be hard to believe how simple it is to start the creation of a new interface. I simply pasted an image of the classic Winamp into Visual Studio.

🔥 Video of the App MCP / Uno Platform MCP / GPT-5 in action 🔥

The initial interface is obviously not 100% exact, but it’s very impressive. It saves hours of work.

I focused next to add the amplifier. I pasted the image and prompted “create a control based on SkiaSharp and animate it”.

Following the success of the previous control, I pasted another image and asked “create a control based on SkiaSharp of the wave chart and animate it”.

I was wowed by the output. I didn’t prompt anything else of it. I just asked to insert it above the band sliders. Also, it found the perfect class name WaveOscilloscopeControl.

The agent produces the 3 SkiaSharp based control:

I asked the agent to animate them. The prompt is simple as: "create this control based on the screenshot and animate it". It's mind-blowing!

Note: the Uno Platform Visual Studio plugin installs the App MCP and the Uno Platform MCP.

I did the UI adjustments with the help of Uno Platform Hot Design. When you exactly know which set of controls to adjust, Hot Design is much more convenient and faster than prompting for questions.

Using App MCP and Uno Platform MCP

It’s no secret that there’s less documentation on the Uno Platform compared to web stacks, simply because there are far more web developers in the world. However, MCPs are extremely handy for producing great code that compiles across Uno Platform solutions.

App MCP
The App MCP knows the best practice to separate the data from the UI. After the UI was built, I requested to move the hard-coded values to the ViewModel and to implement most of the player commands.

MainViewModel.cs File

Uno Platform MCP
My best example that showcases the power of the Uno Platform MCP server is I was able to request a brand new feature by Uno to replace the classic Windows title bar with an embedded title with the app.

var app = (App)Application.Current;
var window = app.MainWindow;
if (window is null)
{
    return;
}

window.ExtendsContentIntoTitleBar = true;
window.SetTitleBar(TitleBar);

var appWindow = window.AppWindow;
if (appWindow is not null)
{
    var tb = appWindow.TitleBar;
    tb.IconShowOptions = IconShowOptions.HideIconAndSystemMenu;
    tb.ButtonBackgroundColor = Windows.UI.Color.FromArgb(0x00, 0x00, 0x00, 0x00);
    tb.ButtonInactiveBackgroundColor = Windows.UI.Color.FromArgb(0x00, 0x00, 0x00, 0x00);
    tb.ButtonForegroundColor = Windows.UI.Color.FromArgb(0xFF, 0xCF, 0xCF, 0xCF);
}

Cross-Platform Reach

My application runs on Windows, macOS, the Web, Android, iOS, and Linux. In fact, if Uno Platform supports the target, my app will run on it. Skia rendering support is what makes this possible.

Development Experience

I used AI in the past for very specific sub-tasks. In this challenge, I asked myself can I create a complete interface with no coding. It turned out that I was able to accomplish this with Visual Studio Copilot / Uno Platform Studio and Uno Platform Hot Design.

I am not a self-made designer, but with the help of AI, I find the app UI appealing.

Personally, the impressive part is I completed the challenge in two evenings of about three hours each 🤯. Without AI / Uno tools, this would have taken me more than a week.

Revisiting the old classic Winamp and made it as a cross-platform app using Uno Platform

Sébastien Lachance — Fri, 05 Dec 2025 04:12:28 +0000

This is a submission for the AI Challenge for Cross-Platform Apps - WOW Factor

What I Built

If you grew up during the Windows 95 era, there's a good chance you used the iconic media player Winamp.

I decided to modernize the classic Winamp interface using Fluent Design and make the app cross-platform with the Uno Platform.

Demo

GitHub Repository

Desktop

Mobile

Web

Cross-Platform Magic

The cross-platform capability is basically an effort-less feature for a Uno Platform project. You only need to adapt the design to different screen sizes. You don't have to worry about the physical device.

It's a pure joy to see the app running on Android, Windows, iOS, Web and macOS without any code change.

Interactive Features

In the player section, the play, pause, stop, next and previous buttons are working. The band sliders are clickable.

The amp visualizer and wave oscillator are animated with real-time rendering by SkiaSharp.

The Wow Factor

The amp visualizer and wave oscillator are cool to watch.

PS: some people might not believe me if I say I spent two evenings of about three hours each!

DEV Community: Sébastien Lachance

New Winamp interface made 100% with AI and Uno Platform tools

What I Built

Demo

AI Tooling in Action

Using App MCP and Uno Platform MCP

Cross-Platform Reach

Development Experience

Revisiting the old classic Winamp and made it as a cross-platform app using Uno Platform

What I Built

Demo

Cross-Platform Magic

Interactive Features

The Wow Factor