# Index ## [API/](./API/index.md) This section describes the specifications of subroutines, types, constants, etc. provided by Erg's built-in or standard libraries. ## [compiler/](./compiler/index.md) Describes the design of the Erg compiler (Centimetre). ## [dev_guide/](./dev_guide/index.md) It explains the development policy of the project, how to make contributions, etc. ## [python/](./python/index.md) The knowledge of Python required to develop Erg is explained. ## [syntax/](./syntax/00_basic.md) The syntax of Erg is explained. ## [tools/](./tools/index.md) Explains how to use Erg's peripheral tools and command options.