That would be cool to get login working via an OpenID provider (using SSO in short, with Keycloak for example).

I know that keycloak-js can do it (https://www.keycloak.org/securing-apps/vue is a complete walk-through), or even https://www.npmjs.com/package/vue-oidc-client as a more generic one. There's also https://github.com/openid/AppAuth-JS

I'm not fluent enough in Vue, but I can do the tests for you on a dedicated branch if you like 👍