When you are ready to deploy your blog, use build command:
You can find the generated blog in myblog/output directory.
Yozuch doesn't have built-in deployment tools yet, but there are a lot of good third-party tools.
You can use ghp-import to deploy to GitHub Pages.
If you are going to host your blog on your own server, the easiest deployment solution is rsync
rsync -azP output/* username@host:/home/www/site_root