Consistent names for related options
Newer versions of Knot have a journal, and there are some options to adjust journal parameters. Some of them start with "journal" (eg. journal-db and journal-db-mode), whereas others start with "max" (eg, max-journal-usage). IMHO, such options should all be prefixed with the same name, ie. "journal", so that you have "journal-db", "journal-db-mode", "journal-max-usage", "journal-max-depth". Similar treatment for "kasp-db" and "timer-db" and their related options would be nice.