A developer by the name of aa has been working on a Chiaki PS remote play client to the Vita, under the name of Vitaki. It is still under development, however it now works with partial controls and streaming. Audio and R2/R3 L2/L3 do not work as of now, but I believe that it is a major step for the Homebrew community. You can try it out here:
https://git.catvibers.me/aa/chiaki/releases
https://git.catvibers.me/aa/chiaki/releases