I watched it and although it was interesting, it needed a software for Java runtime which seems to be specific for SailfishOS and doesn't exists for UT. Newpipe also separates backend and frontend codes so it was easier to do. Not many apps does it the same way, sadly.

Late to the discussion, but on desktop the Yubikey requires some packages installed. So integration would not be straightforward, but I guess something can be hacked if need be. To have the OS support it natively is another story as I doubt an app can bring Yubikey's features to other apps, the browser and wherever it is needed...

Hello. I'm replying to myself: it seems that the ticket is still open and ultimately still being processed. Let's wait and see... https://gitlab.com/ubports/development/ubuntu-touch/-/issues/2238

@Keneda This was to inform about this porting. Thanks for the move.

Thanks! I dived into the issue a bit more, and it seems like the problem lies in the default mapping in /etc/subuid file. The first OS regular user created usually has the assignment 100000:65536 in /etc/subuid. I decided to assign the values (231072:65536) from the user that succeed with the podman pull command to the user with previous 100000:65536. With the new values, podman (and therefore, clickman) runs without issues. I don't see any conflict on the default range assigned, but definitely that new assignment seems to fix it. Hope it helps for those that run into it

Thank you all! Here are a few path to explore. And some interesting topics to explore.

@Vlad-Nirky good news !