Arcanist is an open-source tool used for building and testing PHP applications. It is an essential tool for PHP developers, and its usage is increasing day by day. With its growing popularity, it is important for students to learn about Arcanist and its benefits.

Teaching students about Arcanist has several advantages. Firstly, it familiarizes them with a popular tool used in the industry, making them more employable in the future. Additionally, it teaches them essential skills such as test-driven development and code review, which are vital in software development.

The first step to teaching Arcanist to students is to cover its basic concepts. Arcanist is a command-line tool used to perform various tasks such as linting, unit testing, and code review. It uses a configuration file, `.arcconfig`, to define the project settings, such as project root directory and the location of test files.

Once the students have a basic understanding of Arcanist, it is important to move on to its practical uses. A common use case is performing code review with Differential, a web-based code review tool developed by Facebook. This involves creating a Differential revision, which creates a code review request that can be reviewed by other team members. The reviewer can add comments and suggest changes to improve the code quality.

Another important use case is running unit tests with Arcanist. This involves creating test cases and running them with the `arc unit` command. This practice promotes test-driven development, which is an essential skill for developers to ensure code quality and catch bugs early on in the development process.

Lastly, it is crucial to teach students about the various plugins available for Arcanist. These plugins add additional functionalities to the tool, such as automated deployment and linting. By learning about these plugins, students can customize their workflow and improve their productivity.

In conclusion, teaching students about Arcanist is essential in today’s software development industry. It equips them with essential skills and knowledge that are vital for their future careers. By covering its basics, practical uses, and plugins, students can gain a comprehensive understanding of Arcanist and its benefits.