There will be individual manifests for each device with there according rom.
Naming Scheme examples for the manifests:
n1awifi_BrokenOS_manifest.xml
klimtlte_LineageOS_manifest.xml
v1awifi_LineageOS_manifest.xml
To use these manifests, place these manifests as shown below:
"/lineageos-13.0/.repo/local_manifests/roomservice.xml"
and do a "repo sync"
If you would like to contribute to any of Exynos5420 devices please submit a change to our gerrit http://review.exyns5420.com or get in contact with one of us.