# Custom Package Continued Let's use our new `mystrings` package in `hellogo` Modify hellogo's `main.go` file: ```go package main import ( "fmt" "{REMOTE}/{USERNAME}/mystrings" ) func main() { fmt.Println(mystrings.Reverse("hello world")) } ``` Don't forget to replace {REMOTE} and {USERNAME} with the values you used before. Then edit hellogo's `go.mod` file to contain the following: ```go module example.com/username/hellogo go 1.20 replace example.com/username/mystrings v0.0.0 => ../mystrings require ( example.com/username/mystrings v0.0.0 ) ``` Now build and run the new program: ```bash go build ./hellogo ```