I believe it’s a way away from consumerism if you don’t own everything yourself and share things with people nearby.
I’m looking for a selfhostable (docker-compose) project where everybody can easily add items (maybe with a link to a manual) and the borrowing stuff is manged.
OIDC is a plus because it’s to great with pocket-id.
You could probably use Homebox for this use case. It allows for locations to be configured, attach receipts/maintenance reminders/manuals, etc. Also has OIDC, invite links, and more. I use it to maintain my home inventory of stuff. I think you can also have separate inventories per person/group as well as shared ones within the same instance.