# y_extra Extra features that some people do not want included by default for compatibility reasons such as the commands `/help` and `/commands`. ## YSI For general YSI information, see the following links: * [Installation](../installation.md) * [Troubleshooting](../troubleshooting.md) ## Documentation * [Quick Start](y_extra/quick-start.md) - One very simple example of getting started with this library. * [Features](y_extra/features.md) - More features and examples. * [FAQs](y_extra/faqs.md) - Frequently Asked Questions, including errors and solutions. * [API](y_extra/api.md) - Full list of all functions and their meaning. * [Internal](y_extra/internal.md) - Internal developer documentation for the system. ## External Links These are links to external documentation and tutorials; both first- and third-party. Note that these may be incomplete, obsolete, or otherwise inaccurate.