how to add a directory to your PATH https://jvns.ca/blog/2025/02/13/how-to-add-a-directory-to-your-path/
> Go: go env | grep GOPATH (then append /bin/)
You can also use `go env GOPATH` to directly output the value of that environment variable — which is handy because the output of `go env | grep GOPATH` is in this form:
```
GOPATH='/home/username/go'
```
Instead, the `.bashrc` could just say:
```
export PATH="${PATH}:$(go env GOPATH)/bin"
```