Thanks to Xerpi‘s awesome work, you can stream your PSVita’s screen to a computer via USB giving you a similar experience to the Switch’s TV mode. However, Xerpi didn’t just stop supporting it when it worked well enough but kept on releasing updates to fix bits and pieces. Now, version 1.3 has been released with one major improvement!

Xerpi’s UDCD_UVC is a kernel plugin for hacked PlayStation Vita consoles that lets you stream your console’s screen to a computer over USB.

The latest update to the UDCD_UVC plugin brings the following to the table:
◾ A fix, by u3sh*t, relating to System App detection which means that you can now run applications like Settings and the Browser while you’re streaming your PSVita’s screen over USB!◾From some testing that I’ve done, I noticed that the Settings, Browser, Calendar and Photos apps have been fixed

For a tutorial on how to set up UDCD_UVC, follow this link to get streaming fairly quickly. On the other hand, if you want to tinker with your PSVita, you can check out SilicaAndPina’s recently released CEX2REX homebrew that lets you turn your PSVita to a Testkit at your own risk as I haven’t tried it myself.
UDCD_UVC 1.3 Download Link:
UDCD_UVC’s Readme: