Copyrights in the `base64-string-rs` project are retained by their contributors. No copyright assignment is required to contribute to the `ulid-generator-rs` project.

For full authorship information, see the version control history.

Except as otherwise noted (below and/or in individual files), `base64-string-rs` is licensed under the Apache License, Version 2.0 <LICENSE-APACHE> or <http://www.apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT> or <http://opensource.org/licenses/MIT>, at your option.

The `base64-string-rs` project includes code from the Rust project published under these same licenses.