CodeIgniter + HTML5 Boilerplate + Twitter Bootstrap

i'm the author of that library you've looking into. https://github.com/vesparny/codeigniter-html5boilerplate-twitter-bootstrap

Tw bootstrap and H5BP can be simply mixed together as you can see in my code;Codeigniter is a great framework but lacks in view organization imho.With this library you can take advantage of the best client side tools, and the most famous and simple php framework with some enhancement that would speed up and better organize your code and approach to code with codeigniter.

Seems like not many people try this I guess, but it DOES work, and it works fine as far as I can tell.

CodeIgniter works well as the php framework, and you can integrate the HTML5 BP to render your pages in a HTML5-friendly way, with a few javascript libraries like Initialzr's modernizer to help with loading resources. CodeIgniter is pretty fast, and there is pretty much zero conflict when combining CI with HTML5 BP, making it a pretty quick and painless addition.

Twitter Bootstrap works fine as well, since it's mainly CSS and javascript plugins for components, which you can merge with HTML5's plugins.js file if you want / need it. I'd say that after playing with this, Twitter Bootstrap isn't really necessary, but it does help you put together a responsive front-end pretty quickly. Not sure if there are other packages out there that might be better.

How do you want to run an installation of css and javascript file?
Take HTML5 Boilerplate and Twitter bootstrap files and copy them into your website root directory (directory where is your Codeigniter application folder located).
Now you can use them as any other javascript/html/css libraries and frameworks.

And I still don't know why are you trying to use Twitter Bootstrap with HTML5 Boilerplate. I am not using any of these but they look similar. It looks like a little overhead for your website.