Add `fs/path-exists?` function.
Tweak Path coercion.
Stop deleting job output paths when they already exist.
Docstring typo.
Swap mapper log message order.
Add explicit `dux/{map,combine}-output` sink functions.
Support special `::mr/map-output` named output.
Properly close `dux` record writers when leaving task scope.
Manage Hadoop filesystem shutdown in Parkour.
Add some missing type hints.
Fix typo.
Update examples to match evolving usage.
Release version 0.5.3.
Begin work on next iteration.