Error when generating a release build:
:react-native-custom-tabs:verifyReleaseResources/Users/cameronbates/.gradle/caches/transforms-1/files-1.1/appcompat-v7-26.1.0.aar/d966a29d4964b9817b018d8a3a1d16a4/res/values-v26/values-v26.xml:13:5-16:13: AAPT: No resource found that matches the given name: attr 'android:keyboardNavigationCluster'
build.gradle needs to be updated so builds on RN56 work. It looks like PR #33 fixes this issue