Releases are built by Adamantcheese whenever enough changes have been made and the application is fairly stable:
DEV releases are provided by Github Actions (they are built and uploaded after every new commit):
Kuroba is a fast Android app for browsing imageboards, such as 4chan and 8chan. It adds inline replying, thread watching, notifications, themes, pass support, filters and a whole lot more. It is based on Clover by Floens, but has additional features added in because Floens doesn't want to merge PRs. Credits to K1rakishou for a number of features.
Sites are supported on a PR basis. You want the site, you do the work.
If you want to add a theme, see here.
If you want to request a theme, see here.