Following the recently released PS4 Web Trainer, today @TylerMods via PS4Trainer made available a homebrew app PKG at PS4Trainer.com that will enable and run WebRTE (Runtime Environment) for PlayStation 4 scene developers with several updates below. 
Download: WebRTE.pkg / WebRTE_455.bin / WebRTE_474.bin / WebRTE_505.bin / WebRTE_672.bin via S3phi40T / WebRTE_702.bin / PS4_Trainer_1.0.5.exe (Offline) / PS4 Trainer (Offline) for Android / Github
Spoiler: Legacy Versions
According to their Tweet installation is simple, to quote: "Just install the .PKG, run the app, and WebRTE will be enabled (Must enable every boot like normal)."
More details are available on both PS4Trainer.com and their Discord Channel for help and troubleshooting support.
WebRTE demo video via mohammadfadel
Cheers to @DEFAULTDNB for the news tip on Twitter earlier! 
Download: WebRTE.pkg / WebRTE_455.bin / WebRTE_474.bin / WebRTE_505.bin / WebRTE_672.bin via S3phi40T / WebRTE_702.bin / PS4_Trainer_1.0.5.exe (Offline) / PS4 Trainer (Offline) for Android / Github
Spoiler: Legacy Versions
According to their Tweet installation is simple, to quote: "Just install the .PKG, run the app, and WebRTE will be enabled (Must enable every boot like normal)."
More details are available on both PS4Trainer.com and their Discord Channel for help and troubleshooting support.
WebRTE demo video via mohammadfadel