# Custom gradle parameters You can use these parameters by specifying them inside the `gradle.properties` file as `systemProp.=` or passing them through the CLI with `-D=`. ## packageSuffix This allows you to specify a suffix, which will be added on release builds to the application id, the `app_name` string and the apk file. No validation is made, so make sure to pass in a valid value. ## skipFormatKtlint This allows you to skip the `formatKtLint` task. No value is needed. It is used for CI in order to check for badly formatted files.