I have found a lot of recently made Playstation games translation or hacks coverted to Eboots. However in text heavy games it tends to be a pain on a regular Vita.
Sit is is to run DS and DSi games, not to run 3DS games. And if you want to unlock stuff in GBA games without the card reader just play a hacked rom with that stuff unlocked.
Use Apollo Save Tool to enable games because Sony said goodbye to the Vita and PS3. You can still get trophies if yoy wish thanks to the fan community dedication, they just won't show in your PSN account anymore.