You might actually like Taler, it’s fundamentally different from blockchain based systems, to the point of being a cryptocurrency only in the technical sense, but not having any of the properties people associate with that word culturally.
Taler doesn’t use any kind of proof of work, and so doesn’t consume excess power or other resources, at least not more than, like, visiting any normal webpage. It’s also not decentralized, and only partially anonymous, so I can acquire money anonymously and no one can trace the money I got to a particular spend, but the only place I can reasonably spend it has to be registered to the centralized issuer and is firmly not anonymous. And the only things they can do with the tokens they receive is redeem them, which means there’s no place for tax evasion because the issuing authority can track every dollar the registered vendors redeem with them. And you can’t really transfer money from random person to person, so there’s no black market opportunity, etc.
So basically the only thing Taler “protects” is that the buyer’s identity can be anonymous, but any vendor accepting Taler must not be and are highly trackable.
These are things I actually don’t like about Taler, but we may be on opposite sides of a few issues, which is fair.
There’s an app I’ve never used but heard of: https://adresilo.com/
I think the way it works is that it queries Google’s API for locations, proxies through them, but it can’t show them on a map due to Terms of Service, but it can provide links that will then open in any map app of your choice.
The app is open source, but the DB is obviously Google. So it’s trying to blur that line of providing Open Source functionality, and using Open Source maps, with the practicality of “Google has all the stuff” UX problem.
At least I think…