"Smart contracts" are a defining feature of DAOs. "Smart contracts" are not something that are offered outside of cryptocurrency / blockchain platforms. No one has found a viable use for blockchains that cannot be better solved in other means
except as massive vehicles for scams.
Any organization that tries to implement a DAO / smart contract system for governance is asking for trouble, because they’re legally unsound and untested.
As far as organizational structures are concerned, there are plenty of viable structures and legal sorts of entities that can be used. (Gitea Ltd might be able to fix a lot of the goodwill issues by switching to a B corp structure or even to a legal cooperative structure.)