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@@ -1,9 +1,83 @@
 # Merged
 
-rails plugin new merged --mountable --css tailwind --skip-jbuilder -C -O --skip-hotwire --skip-active-storage
+A CMS that integrates into the rails workflow. Ie it is file based
+not db based.
+
+Changes propagate in the normal development cycle, with git, possible
+branches, possible staging, possible reviews and controlled deploys.
 
 ## Usage
-How to use my plugin.
+
+Merged is designed for developers to give limited editing facilities
+to users. As with rails, there is great flexibility how this can be
+achieved, a basic example below.
+
+## Concepts
+
+Merged has simple but powerful concepts and structures to define
+the interactions users may have.
+
+### Page
+
+The core entity that may be edited is a Page. Pages contain Sections
+(below) in a way defined by developers.
+
+A Page has a type, different types may define different layouts, or rather types of Sections they may include.
+
+A page has a name which is it's Url, Merged is not designed for nesting currently.
+
+All data that users change is stored in the Pages' Yaml, which get
+committed and __merged__ to propagate to the site.
+
+A Page also has data, attributes and options, see below.
+
+### Sections
+
+Merged itself defines many styles of sections, and off course
+developers may define more.
+For example a Header with text is a section, a hero section is a section, and a card section is a different style.
+
+The only defining characteristic of a section is really that it is full width, and it has a template that renders the content.
+
+A Page may contain as many sections as the Page definition allows.
+
+A Section in turn may contain cards.
+
+Like a Page, a Section may have options.
+
+### Cards
+
+Cards, as in general css lingo, are usually smaller html snippets,
+usually contained in a grid (defined by the Section).
+
+Cards have data and options like the other elements.
+
+### Image
+
+Merged also manages images, adding deleting, renaming, which are
+stored in the assets folder. With the Pages (and their data) they
+define the content that users can change.
+
+Images merge into the upstream in the same way as the pages, through
+git actions (partially done by Merged)
+
+## Change (-sets)
+
+As data is in files, all change happens by git.
+Merged partially manages this, by making changes visible to the
+users, ie what Pages and Images were added/removed or edited.
+Merged can commit and in the future maybe even push.
+
+### Basic setup
+
+A developer set up a machine on a intranet/lan. Ie access is
+restricted by physical access.
+
+The machine is set up as a developer machine, on a "feature" branch.
+A User may use the machine to edit and commit and push (the branch).
+
+The developer reviews, merges changes and deploys.
+
 
 ## Installation
 Add this line to your application's Gemfile:
@@ -17,13 +91,12 @@ And then execute:
 $ bundle
 ```
 
-Or install it yourself as:
-```bash
-$ gem install merged
-```
+Mount engine in routes for editing.
+
+Create route to serve content.
 
 ## Contributing
-Contribution directions go here.
+Ask first.
 
 ## License
 The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).