docs: def source(self):
          """Grab sources downloads links
          """
          source, source64, = "", ""
          for line in self.SLACKBUILDS_TXT.splitlines():
              if line.startswith(self.line_name):
                  sbo_name = line[17:].strip()
              if line.startswith(self.line_down):
                  if sbo_name == self.name and line[21:].strip():
                      source = line[21:]
              if line.startswith(self.line_down_64):
                  if sbo_name == self.name and line[28:].strip():
                      source64 = line[28:]
          return self._select_source_arch(source, source64)