Gemini is an application-level client-server internet protocol for the distribution of arbitrary files, with some special consideration for serving a lightweight hypertext format which facilitates linking between hosted files. Both the protocol and the format are deliberately limited in capabilities and scope, and the protocol is technically conservative, being built on mature, standardised, familiar, "off-the-shelf" technologies like URIs, MIME media types and TLS. Simplicity and finite scope are very intentional design decisions motivated by placing a high priority on user autonomy, user privacy, ease of implementation in diverse computing environments, and defensive non-extensibility. In short, it is something like a radically stripped down web stack. See section 4 of this FAQ document for questions relating to the design of Gemini.