BUGS

When the path does not exist:

    result = fun(CLI(context), **fun_kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/spierre/Workspace/sink/src/py/sink/commands.py", line 202, in diff
    snaps: list[Snapshot] = [
                            ^
  File "/home/spierre/Workspace/sink/src/py/sink/commands.py", line 203, in <listcomp>
    snapshot(
  File "/home/spierre/Workspace/sink/src/py/sink/snap.py", line 121, in snapshot
    return Snapshot(
           ^^^^^^^^^
  File "/home/spierre/Workspace/sink/src/py/sink/model.py", line 91, in __init__
    self.extend(nodes)
  File "/home/spierre/Workspace/sink/src/py/sink/model.py", line 94, in extend
    for node in nodes:
  File "/home/spierre/Workspace/sink/src/py/sink/snap.py", line 66, in nodes
    for path in cls.walk(
  File "/home/spierre/Workspace/sink/src/py/sink/snap.py", line 30, in walk
    for rel_path in os.listdir(base_path):
                    ^^^^^^^^^^^^^^^^^^^^^
FileNotFoundError: [Errno 2] No such file or directory: '../tickerapi--main/src/tickerapi'