Very niche, applied for the TPL card at the main branch in Daan, there is the option to add the library card (which now is mobile only via their app or linked to an Easycard) to Taipei Pass, which then allows you to add to Apple wallet.
I tried to follow the procedure to link it, but each time it fails
Nope, I think I know what the problem is: my name on Taipei pass is my Italian name, library card Chinese. Asked to update my Taipei pass to Chinese, will check once updated.