Brainstorming on basic reporitory API / architecture

Signed-off-by: Gunnar Wagenknecht <gunnar@wagenknecht.org>
Write done some of the internal architecture.

Signed-off-by: Gunnar Wagenknecht <gunnar@wagenknecht.org>
Updat preferences for MoreUnit.

Signed-off-by: Gunnar Wagenknecht <gunnar@wagenknecht.org>
Update to UI Flow

Signed-off-by: Gunnar Wagenknecht <gunnar@wagenknecht.org>