What is Self-Hosting?

What is Self-Hosting?


The term self-hosting may refer to any of the following:

  • In computer programming, a self-hosting program is one that can modify, and interpret or compile, its own source code. The purpose of a self-hosting program is to create new versions of itself. For example, operating system kernels qualify as self-hosting if they contain and can compile their own source code. The first self-hosting software was written in LISP by Timothy Hart and Michael Levin in 1964 at MIT. LISP is an example of a self-hosting program language, because its primary data structure is the list, and every valid LISP program is structured as a list.

  • In web applications and cloud services, self-hosting refers to software installed and maintained by the user on a generic web hosting service, such as a VPS. The benefit of self-hosting is that the user has complete control over their data, at a potentially lower monthly cost. The downside is that the user is responsible for maintaining the service. If the service encounters an error, the user is responsible for resolving the issue.


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