No permission to change the custom core moves to the system directory

My mobile have no root, I have no permission to change the custom core moves to the data/user / 0 / com. Retroarch/core directory. I wonder if I can modify the core update address url and build an HTTP server locally to update the core of my changes?

Yes, you can do that, but you would also need to build an index file for the directory, as our http doesn’t currently have the ability to just parse a directory. That’s hopefully coming soon, but it’s not there currently.

Does not create index file, can you provide an index file?

Yes, you can make your own index file from scratch really easily. We just create them with scripts: https://buildbot.libretro.com/nightly/android/2017-12-07_cores/armeabi-v7a/.index

thank you very munch hunterk.

It sounds like you have this covered but just incase I put my experiences of this here http://emulationguide.com/retroarch-local-online-updater

And this thread may be of interest

thank you Thatman84.