Aluminum is a base module supporting an entire ecosystem of other Aluminum modules.

You don't need to install `aluminum` by itself. All it does is provide shared functionality for other `aluminum`-based themes or modules.

Typeit is javascript utility.

Typeit does work which you have to do with typeit javascript.

The advantage of using this module is you don't have to code js and you can simply enable the module and config it.

After enabling the module , Configure it from
/admin/config/user-interface/typeit

How to config it?

Provides integration with Cash, an absurdly small jQuery alternative for modern browsers (IE9+).

Cash is a small library for modern browsers (Chrome, Firefox, Safari and Internet Explorer 9+) that provides jQuery style syntax for manipulating the DOM. Utilizing modern browser features to minimize the codebase, developers can use the familiar chainable methods at a fraction of the file size.
100% feature parity with jQuery isn't a goal, but cash comes helpfully close, covering most day to day use cases.

Assistant to administer SSL certificates.

Multiple configuration destinations are often used to store configuration specific to environment or even to separate on a site-by-site basis.

A common workflow is to leverage "sync" (the default and out-of-the-box configuration destination) as the destination for storing shared/global configuration. Overridden and additional configuration is stored in subsequent configuration destinations. A config import with the "partial" option allows for the secondary destination to bring in only that which is overridden or added.

A deeper dive into this workflow: