bitwarden-browser/apps/web/config/usdev.json

{
  "urls": {
    "icons": "https://icons.usdev.bitwarden.pw",
    "notifications": "https://notifications.usdev.bitwarden.pw",
    "scim": "https://scim.usdev.bitwarden.pw"
  },
  "additionalRegions": [
    {
      "key": "USDEV",
      "domain": "usdev.bitwarden.pw",
      "urls": {
        "webVault": "https://vault.usdev.bitwarden.pw"
      }
    }
  ],
  "flags": {
    "showPasswordless": true
  }
}