DM Mono / 400
{
  "copyright": {
    "en": "Copyright 2020 The DM Mono Project Authors (https://www.github.com/googlefonts/dm-mono)"
  },
  "license": {
    "en": "This Font Software is licensed under the SIL Open Font License, Version 1.1. This license is available with a FAQ at: http://scripts.sil.org/OFL"
  },
  "licenseURL": {
    "en": "http://scripts.sil.org/OFL"
  }
}

DM Mono / 500
{
  "copyright": {
    "en": "Copyright 2020 The DM Mono Project Authors (https://www.github.com/googlefonts/dm-mono)"
  },
  "license": {
    "en": "This Font Software is licensed under the SIL Open Font License, Version 1.1. This license is available with a FAQ at: http://scripts.sil.org/OFL"
  },
  "licenseURL": {
    "en": "http://scripts.sil.org/OFL"
  }
}