From their site:
Taler does not introduce a new currency. Taler uses a digital wallet storing coins and payment service providers with settlement accounts in existing currencies. Thus, Taler’s cryptographic coins correspond to existing currencies, such as US Dollars, Euros or even Bitcoins.
Sorry for not answering to your question directly, but why not just use subuids for separation instead?
podman run -d --restart unless-stopped \ --uidmap "+0:@100001:1" \ --name nginx-1 \ --port 8081:80 \ docker.io/library/nginxpodman run -d --restart unless-stopped \ --uidmap "+0:@100002:1" \ --name nginx-2 \ --port 8082:80 \ docker.io/library/nginx