¯\_(ツ)_/¯ - if the powers-that-be at Pocket wish to shoot themselves in the collective foot, that's their prerogative; I'm not about to grovel in their general direction. This has, historically, been the impulse to abandon ship and look for an alternative, signalling more walled garden and/or service shutdown ahead.
This looks workable, and explicitly open for self-hosting: https://wallabag.org/en