Why not? :) I (Thiago) for a long time had an idea of writing a blog engine that was heavily based on tags and which provided specific the option of having per-tag and per-post style. In addition, it would be used as a light CMS too, so that's why Eloquentia uses the word 'page', not 'post'.

Another reason was creating a pratical, useful project to learn some new interesting stuff like Apache Tapestry 5.4 (due to the project at work, I barely had used T5.2 and later), MongoDB (I've never used a NoSQL database before) and Twitter Bootstrap.

Each tag has:

• A name, which can only use lowercase letters, digits or dashes ('-')
• A boolean 'subdomain' field which defines affects the tag URL.
• A title
• An optional subtitle, which is used in the tag page and in pages which have this tag as their first one.
• CSS which will be added to its page and to all pages which have that tag.

The URL of a tag is based on its the name. For example, if a tag name is tapestry, the URL will be tapestry.domain.com if it's marked as a subdomain and domain.com/tag/tapestry otherwise.

Each page has:

• An URI, which is used to define the page's URL. It can use lowercase letters, digits, dashes ('-') and slashes ('-'), but cannot start or end with a slash.
• A title
• A teaser, which is a short text describing the page and used in the page listing and RSS feed.
• The content itself.
• The date (including time) in which it was posted. Dates in the future are used to schedule when a given page should appear.
• The date (including time) in which it was last edited
• An author

The URL of a given page depends on its first (as in order) of its tags, if any. Suppose a page with URI stuff/eloquentia and tags project and java. If project is a tag marked as a subdomain, the URL of the page will be http://project.domain.com/stuff/eloquentia. Otherwise, it'll be http://domain.com/stuff/eloquentia.

Eloquentia is configured to use a local MongoDB instance without authentication. Its page, tag and user collections are supposed to be in the eloquentia database. This isn't configurable yet.

• Java
• Apache Tapestry 5.4 - http://tapestry.apache.org - Web framework
• MongoDB - http://www.mongodb.org - NoSQL database (document-oriented)
• MongoJack - http://mongojack.org - POJO to MongoDB BSON object mapper based on Jackson JSON Processor.
• Twitter Bootstrap 3 - http://getbootstrap.com - CSS framework
• WYMeditor - http://www.wymeditor.org - rich text editor
• Prism.js - http://prismjs.com - code syntax highlighter