you first need to install the tailwindcss-dotnet NuGet package globally:
dotnet tool install --global tailwindcss-dotnet --version 1.0.0-beta5
Run your tailwind build process with:
tailwind watch
And start the app hot-reload dev server:
dotnet run watch
tailwindcss-dotnet, tailwindcss-dotnet NuGet package, Tailwind CSS, Tailwind CSS CLI