boiltheoceanYou don't need your own repo to backup cydia apps, just use AptBackup.
boiltheoceanIf your colour keyboard is a cydia package then it should. All AptBackup does is sync a list of cydia apps to iTunes, then when you update your jailbreak you simply re-download AptBackup and it then re-downloads all the cydia apps from that list. It is worth noting that cydia packages may not work with the next iOS version anyway so it's kinda pointless, your best of just writing down all the apps you like then keep checking for updates to see if they are compatible.