### Download YouTube Video with goutubedl

Source: https://github.com/wader/goutubedl/blob/master/README.md

This snippet demonstrates how to download a YouTube video using the goutubedl library. It shows how to initialize the library, specify download options, and save the downloaded content to a file. Ensure yt-dlp is installed and accessible in your PATH.

```go
package main

import (
	"context"
	"io"
	"log"
	"os"

	"github.com/wader/goutubedl"
)

func main() {
	result, err := goutubedl.New(context.Background(), "https://www.youtube.com/watch?v=jgVhBThJdXc", goutubedl.Options{})
	if err != nil {
		log.Fatal(err)
	}
	downloadResult, err := result.Download(context.Background(), "best")
	if err != nil {
		log.Fatal(err)
	}
	defer downloadResult.Close()
	f, err := os.Create("output")
	if err != nil {
		log.Fatal(err)
	}
	defer f.Close()
	io.Copy(f, downloadResult)
}
```

--------------------------------

### Build and Run Development Environment for goutubedl

Source: https://github.com/wader/goutubedl/blob/master/README.md

This snippet shows how to build a Docker image for development and run it. It mounts the current directory into the container and executes Go tests with race detection and coverage.

```sh
docker build --target dev -t goutubedl-dev .
docker run --rm -ti -v "$PWD:$PWD" -w "$PWD" goutubedl-dev
go test -v -race -cover
```

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