If you need to build modern website and mobile app , so use piconic website themes template is the best solutions.
Develope with markdown and work on PHP lang, make easy for you to upload on PHP hosting, like cpanel, plesk, and others. Pico Piconic flatfile cms with markdown and YAML files for work, so you can easy to update and manage your site.
Not just built a website , but you can develope android app to with use this project, download this free source code project and built your webiste and mobile app UI with piconic now !!