sources:
  nginx-1.19.4.tar.gz: 4b0bac592eb52d829329104030f428d8fc4e94eb
  nginx-logo.png: a609ff4e27b6236233ea576739a6fb040da4d550
  nginx-rtmp-module-1.2.1.tar.gz: 7c6ae1afc117e3bf946b0d81f99d41fe538a7245