# Core Concepts 

This documentation cover more over-arching concepts of Evennia, often involving many [Core Components](../Components/Components-Overview) acting together.

## General concepts

- [Asynchronous processing](./Async-Process)
- [On Soft-Code](./Soft-Code)
- [Using MUX as standard for default commands](./Using-MUX-as-a-Standard)

## Access 

- [Multisession modes](./Multisession-modes)
- [Permissions](./Building-Permissions)
- [Banning](./Banning)

## Extending the Server 
- [Custom Protocols](./Custom-Protocols)
- [Bootstrap](./Bootstrap-&-Evennia)
- [Creating new models](./New-Models)

## Text processing

- [Change the language of the server](./Internationalization)
- [Server text-encoding](./Text-Encodings)
- [Text tags](./TextTags)

## Web features

- [Web features](./Web-Features)