Much better than lists (a slow, obsolete and inflexible method to classify items in a database) and still better / more flexible than a simple star column would be implementing a user-defined tag system, which is a modern and ultra flexible system to organize databases and would work, IMO, perfectly for BIAB.

If anyone's is not familiar on how tags work, please, take a look at, for example, how Obsidian (a modern and ultra fast note taking app and knowledge manager system) uses them:


Latest BIAB version, latest build.