SCION is slowly growing to become more integrated leveraged by Anapaya (https://www.anapaya.net/scion-internet). Access to services using SCION like electronic banking solutions is usually limited to companies as they can afford entering SCION networks directly. Inidividuals seem to be limited to "wormhole" themselves into SCION.
What if Proton VPN offered direct access into SCION?
If I understood correctly the architecture would be as follows: on my personal device I use Proton VPN connecting to an SCION-enabled (they call ist SCIONabled) VPN server. Whenever I require resources from SCION the Proton VPN server running Anapaya EDGE (https://docs.anapaya.net/en/latest/edge/deployment/#appliance-edge) puts my request directly into SCION. All other stuff keeps running as before.
Even if some time in the future many ISP's offer direct access, Proton would still close any gaps - like from a smartphone somewhere in the world. Plus, I don't have to care about the setup of Anapaya EDGE as this will be just another Proton Service on my Proton VPN. Nice.
As I didn't find anything on SCION working with Proton or vice versa, I'm curious to see the outcome of this idea.