CAShe is a CAS (Content Addressable Storage) cache for your data/caches. Everything that is stored in the CAShe can be deleted at any time, although that will mainly happen when cleanup operations are called or if failures happened.

Much like squid is a HTTP cache for multiple computers/applications, CAShe can act as a CAS cache for multiple applications or even for just one application to maintain its own cache of data.

There is a "cashe" command line interface, so a user can easily see how much data is stored in CAShe and manually insert/remove data from it. It's expected that most users/applications would use the default system CAShe path, but there is nothing stopping an application having their own (although there is no direct support for multiple stores).

See DESIGN for an explanation of how it works, and why, so you can reimplement compatibly.