diff --git a/wiki/changelog.html b/wiki/changelog.html
index d701cbc..749145a 100644
--- a/wiki/changelog.html
+++ b/wiki/changelog.html
@@ -2,6 +2,7 @@
Oct 11, 2020:
- 'ytalk' is reinstalled and the talk daemon is working again.
+ - 'unison' is installed
Sep 28, 2020:
- mosh compiled from source to support true color displays. you may need
diff --git a/wiki/index.html b/wiki/index.html
index 4e5dcf3..f82555f 100644
--- a/wiki/index.html
+++ b/wiki/index.html
@@ -11,7 +11,7 @@ SYSTEM WIKI
- Available Text Editors
- Dotfiles and customization
- "You have mail." - login message won't go away
-- The unison program - synchronizing files
+- The unison program - synchronizing files
- Copyright and Licensing
- System Changelog
diff --git a/wiki/unison.html b/wiki/unison.html
index 7f782dd..f21ffe6 100644
--- a/wiki/unison.html
+++ b/wiki/unison.html
@@ -1,4 +1,22 @@
+Unison is a tool that allows for the synchronization of files across servers
+that also have it installed. It is like rsync but works both ways.
+All options for this tool are included in a file stored in the .unison
+folder in your home directory, called a profile. For connecting to a different
+server, (tilde.club is an example of an exception to this.) a private key for
+that server is required in order to connect. To set that up,
+sshpref is the option to set to the value: '-i .ssh/ '.
-
\ No newline at end of file
+To set an option the syntax is: option_name = value
+
+Even if you don't have a server to connect to, unison is great for merging
+directories. Even on/to a Windows box.
+Instead of following the common practice of using double hyphens for long
+flags on the comand line, a single is used for all.
+
+For your personal machine, there is a graphical interface availiable as
+'unison-gtk' in APT, and very well could be in other packaging systems.
+However, it is best if the profiles are edited manually as the user interface
+does not do the best job of doing it for you.
+