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+title = "Internet"
+updated = 2024-05-02
+draft = false
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+
+## Gemini
+
+The [Gemini Protocol](https://geminiprotocol.net/) is a network of
+interconnected plaintext documents. If you've used
+[Gopher](https://en.wikipedia.org/wiki/Gopher_(protocol)) before, Gemini will
+feel very familiar.
+
+Instead of web sites, Gemini uses the term "capsules" that can be access via
+`gemini://` links.
+
+In order to browse Gemini capsules, you will need a client capable of supporting
+Gemini. The Gemini Protocol website has a [Gemini
+software](https://geminiprotocol.net/software/) page with a list of clients for
+each platform.
+
+
+### Gemtext
+
+[Gemtext](https://geminiprotocol.net/docs/cheatsheet.gmi) is a plaintext syntax,
+very similar to Markdown.
+
+To quote the Gemini Protocol's documentation:
+
+-   Long lines get wrapped by the client to fit the screen.
+-   Short lines _don't_ get joined together.
+-   Write paragraphs as single long lines.
+-   Blank lines are rendered verbatim.
+
+```md
+[//]: <> (Headings)
+
+# Heading
+
+## Sub-heading
+
+### Sub-subheading
+
+[//]: <> (Lists)
+
+-   Mercury
+-   Gemini
+-   Apollo
+
+[//]: <> (Quotes)
+
+> I contend that text-based websites should not exceed in size the major works of Russian literature.
+
+[//]: <> (Links)
+=> gemini://geminiprotocol.net/docs/cheatsheet.gmi
+=> gemini://geminiprotocol.net/docs/cheatsheet.gmi Gemtext cheatsheet
+
+[//]: <> (Preformatted text)
+Any line starting with three backticks (```) will tell the client to toggle to
+"preformatted mode", which disables the client's logical checks to render links,
+headings, etc. and will render the text as-is.
+```
+
+## Gopher
+
+The [Gopher Protocol](https://en.wikipedia.org/wiki/Gopher_(protocol)) is a
+communication protocol, similar to Gemini, that allows for browsing of any ones
+of [the 14 supported item
+types](https://datatracker.ietf.org/doc/html/rfc1436#section-3.8):
+
+```txt
+0   Item is a file
+1   Item is a directory
+2   Item is a CSO phone-book server
+3   Error
+4   Item is a BinHexed Macintosh file.
+5   Item is DOS binary archive of some sort.
+    Client must read until the TCP connection closes.  Beware.
+6   Item is a UNIX uuencoded file.
+7   Item is an Index-Search server.
+8   Item points to a text-based telnet session.
+9   Item is a binary file!
+        Client must read until the TCP connection closes.  Beware.
++   Item is a redundant server
+T   Item points to a text-based tn3270 session.
+g   Item is a GIF format graphics file.
+I   Item is some kind of image file.  Client decides how to display.
+```
+
+### Simplicity is Intentional
+
+Gopher is [meant to be
+simplistic](https://datatracker.ietf.org/doc/html/rfc1436#section-4).
+
+```txt
+As far as possible we desire any new features to be carried as new
+protocols that will be hidden behind new document-types.  The
+internet Gopher philosophy is:
+
+    (a) Intelligence is held by the server.  Clients have the option
+    of being able to access new document types (different, other types
+    of servers) by simply recognizing the document-type character.
+    Further intelligence to be borne by the protocol should be
+    minimized.
+
+    (b) The well-tempered server ought to send "text" (unless a file
+    must be transferred as raw binary).  Should this text include
+    tabs, formfeeds, frufru?  Probably not, but rude servers will
+    probably send them anyway.  Publishers of documents should be
+    given simple tools (filters) that will alert them if there are any
+    funny characters in the documents they wish to publish, and give
+    them the opportunity to strip the questionable characters out; the
+    publisher may well refuse.
+
+    (c) The well-tempered client should do something reasonable with
+    funny characters received in text; filter them out, leave them in,
+    whatever.
+```
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