@ezze You can come a long way with QML and JavaScript. As an example, the navigation app uNav is written solely using those technologies.

@arubislander If you only work on QML, you can use directly QML Creator from the app store or even work with QML live app ( didn't had success with QtCreator because it can't save the save trought MTP or SSH AFAIK) If working on a standard project, you can try first locally and then setup the build for UT ( examples here : https://docs.ubports.com/en/latest/appdev/guides/cookbook.html

Yup, portable monitors are pretty common now. In fact I have one 15.6" Touchscreen and works with type-C. It's only 1080p though Sadly, there are no currently supported device that can use type-C to video out. But mostly has mini-HDMI so that could work with Nexus 4/5/7 2013 for now

The first step (which is more like a leap over the moon), would be to get the differences from the current ofono build (which is a fork that was maintained by Canonical at the time, and has quite a lot of changes from upstream) reconciled with upstream ofono, so we can upgrade to the latest version. There are about 45k lines of changes between our ofono, and upstream 1.17 (which our fork is based on). This will require a lot of patience, and will require some knowledge about MTK modems and such, as we'll need to keep most of the changes from the fork when updating.