indiebookclub is an app for keeping track of the books you are reading or want to read. It is primarily intended to help you own your data by posting directly to your own site with Micropub.
I’ve already enabled the following post kinds: acquisition, drink, eat, exercise, sleep and trip. Multi-kind posts is something I really want to do though it is not supported. Though I cheated a bit by enabling the Quick Edit option in the plugin and then using the The Quick Edit option in WordPress to add the additional post kind.