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The config sub-command makes it possible to get and set various configuration values, used by other Scala CLI sub-commands.

The full list of the available configuration keys is available in the reference docs.

Examples of use:

scala-cli config power true
scala-cli config power

Even though the config command is not restricted, some available configuration keys may be, and thus may require setting the --power option to be used. You can pass it explicitly or set it globally by running:

scala-cli config power true
scala-cli --power config "Alex Me"
scala-cli --power config
Alex Me

The --dump option allows to print all config entries in JSON format:

scala-cli config --dump | jq .
"github": {
"token": "value:qWeRtYuIoP"
"pgp": {
"public-key": "value:-----BEGIN PGP PUBLIC KEY BLOCK-----\nVersion: BCPG v1.68\n\n…\n-----END PGP PUBLIC KEY BLOCK-----\n",
"secret-key": "value:…",
"secret-key-password": "value:1234"
"user": {
"email": "[email protected]",
"name": "Alex Me",
"url": ""

Use --password-value to get the value of a password entry:

export MY_GITHUB_TOKEN=1234
scala-cli --power config github.token "env:MY_GITHUB_TOKEN"
scala-cli --power config github.token
export MY_GITHUB_TOKEN=1234
scala-cli --power config --password-value github.token

Use --create-pgp-key to create a PGP key pair, protected by a randomly-generated password, to be used by the publish setup sub-command:

scala-cli --power config --create-pgp-key --pgp-password MY_CHOSEN_PASSWORD --email "some_email"

It's not mandatory, although recomended, to use a password to encrypt your keychains. To store the private keychain in an unencrypted form use --pgp-password none. To randomly generate a pasword, use --pgp-password random instead. Also, the --email option or has to be specified for this subcommand to work properly.

Configuration values are stored in a directory under your home directory, with restricted permissions:

  • on macOS: ~/Library/Application Support/ScalaCli/secrets/config.json
  • on Linux: ~/.config/scala-cli/secrets/config.json
  • on Windows: %LOCALAPPDATA%\ScalaCli\secrets\config.json ( typically C:\Users\username\AppData\Local\ScalaCli\secrets\config.json)