code: func AbsFromRelativeToBin(relPath ...string) (string, error) {
  	rootDirname := filepath.Dir(os.Args[0])
  	absRootDirname, err := filepath.Abs(rootDirname)
  	if err != nil {
  		return "", err
  	}
  	return filepath.Join(absRootDirname, filepath.Join(relPath...)), nil
  }
docs: // AbsFromRelativeToBin : function that returns the absolute path to a file/directory
  // computed with the directory of the binary as the root
  // Example : if bin is /opt/program this function will return an absolute path computed as relative to /opt/
  // @relPath : the parts of the path you want to Join in your final path
  // return (string, error) : the absolute path and an error if necessary