@item check that generated target was not modified "externally" outside
the redo, preventing its overwriting, but continuing the build
@end itemize
+@item recursive, indented and serialized logs display ability, with
+ priority to the depth and bad return codes, like in @command{apenwarr/redo},
+ thanks to @url{https://apenwarr.ca/log/20181106, apenwarr's article}
+@item all environment variables, working directory, command line
+ arguments, start/finish times, duration, participated PIDs, return
+ codes can be saved for later investigation
@item targets, dependency information and their directories are explicitly
synced (can be disabled, should work faster)
@item file's change is detected by comparing its size, @code{ctime} (if