Using it with Vagrant.
CI and testing server of my open source projects.
Almost everywhere except Python documentation.
Personal home page and demo page of my projects.
CoffeeScript is good to write some utilities at front-end.
Using sentry to collect bugs of django and flask projects online.
Comment system of my blog.
Since being familiar to git CLI, I nearly never open it again except using it as a diff tool.
Using Selenium in Django tests to automate browser test.
Using Jade in Vue.js components and Jinja2 templates.