I only have maybe half a dozen posts and most of them are ancient, but I was able to bring those over by hand. However if you have large number of posts that you would like to bring over, they have importers for all of the major blogging platforms. If you’re a programmer looking for a blog, I would recommend you at least consider Github pages before rolling your own. Jekyll handles code formatting and Gists very nicely and screenshots and such are trivial to manage. You can see how I made this site here: https://github.com/socketwiz/socketwiz.github.io.