.NET Installation Guide - Auto-Open with Thank You Modal

The recommended approach uses Ubuntu's own repositories (Canonical packages), since Microsoft no longer publishes separate packages for Ubuntu 24.04+.

Update package list
```
sudo apt update
```
Install the latest supported .NET version
- For .NET 8 (very stable, widely used):
```
sudo apt install -y dotnet-sdk-8.0
```
- For .NET 9 (if available in late 2025 / 2026):
```
sudo apt install -y dotnet-sdk-9.0
```
- For the newest .NET 10 (if released and packaged):
```
sudo apt install -y dotnet-sdk-10.0
```
Most people start with .NET 8 or .NET 9 — pick the one that matches your project.
Verify installation
```
dotnet --version
dotnet --info
```
You should see version information (e.g. 8.0.4xx or 9.0.xxx).

If you want the very newest .NET (preview or just-released versions) without waiting for Canonical:

sudo snap install dotnet --classic

Then check version:

dotnet --version

(The snap is maintained by Microsoft and usually contains the latest stable release.)

Use Microsoft's install script (one-line, no repo configuration needed):

wget https://dot.net/v1/dotnet-install.sh -O dotnet-install.sh
chmod +x ./dotnet-install.sh
./dotnet-install.sh --channel 9.0    # or 10.0, 8.0, etc.

After running, add it to PATH (if not done automatically):

export DOTNET_ROOT=$HOME/.dotnet
export PATH=$PATH:$HOME/.dotnet

Add those two lines to ~/.bashrc or ~/.zshrc for permanence.