Ok, had a look.
The current templates for Logarion are far fewer and simpler than Jekyll. For example there are no conditions in the templates just now, since Logarion uses mustache- Logic-less templates.. There are only 5 template files, which you can see here.
As for the stylesheets, both systems used Sass. Again Logarion has far fewer files, only two found here.
So I’d say that it’s easy to get up to speed with how Logarion templates work and turning them into something you else, but porting the Octopress theme might be challenging. I’m here to help
What do you mean by generated pages per tag? Directories for each tag with copies of the posts in them?