- gitoe.Historian
    - more patterns
    - display time of changes in natural language

- visualize change
    - ref -> commit
    - ref -> ref

- find a way, to play with huge repo
    - partial-fetching from latest commits
        - IN A MORE space/time efficent way
    - -> partial-rendering of DAG ?

- layout commits in better way
    - fake-node, to reduce overlap
    - less crossing