A homebrew enabler / hack has been released for Vita (and TV) that enables installing any homebrew (without killing DRM). It stands out as being amazingly simple - just open a page in the browser (best to have a fresh restart of your device beforehand). And that's it. Shell installed with FTP access and pkg runner. Just tried it (on the Vita TV which wasn't using much anyway) and it is legit. I got it through Eurogamer by the way, so I assume for now it's ok to post here as well. If not, one of my fellow moderators will probably kill me ...
https://henkaku.xyz/usage/
https://henkaku.xyz/usage/