| new-db-initialized | none | New DB initialized (first run of the app) |
| tag-created | db/Tag | new tag is registered in DB |
| tag-assigned | [db/Note,db/Tag] | tag assigned to the note in DB |
| tag-removed | [db/Note,db/Tag] | tag removed from the note in DB |
| tag-updated | db/Tag | tag.name has changed |
| note-created | db/Note | new note created in DB |
| note-updated | db/Note | exiting note has been updated in DB |
| note-lock-changed | db/Note | note.lock value has changed |
| note-history-changed | db/Note | note.history has changed |
| book-created | db/Book | book |
| book-removed | db/Book | book |
| book-updated | db/Book | book |
| book-selected | db/Book | book |
| book-assigned | [db/Book, db/Note] | book assigned to item |