How to change URL prefix "/mixpost"?

In Laravel application:

Add in the .env file this:

MIXPOST_CORE_PATH=my-prefix

In Docker:

Add to the environment list in the docker-compose.yml file:

environment:
            LICENSE_KEY: 'example_license_key'
            APP_URL: https://your-domain.com
            ...
			MIXPOST_CORE_PATH=my-prefix

Conclusion

After changing this prefix, you can navigate to the Mixpost dashboard with the new prefix: https://your-app-url.com/my-prefix/

IMPORTANT!
If you changed this prefix, be sure to change the callback URLs from all third-party services (Social Platforms and Payment Platforms).
Facebook callback URL example: 
 - Old: https://your-app-url.com/mixpost/callback/facebook_page
 - New: https://your-app-url.com/my-prefix/callback/facebook_page