I see it's just been announced that covid "passports" will be compulsory for entry into nightclubs and other "crowded venues" from September.
Your vaccination status is much harder to fake than your Covid Pass test status on the NHS App.
At the moment the NHS Covid Pass consists of either your vaccination status, proof of antibodies (i.e. recent infection) or proof of negative lateral flow test.
Except you don't have to actually take the lateral flow test. Just order the kits from NHS, and report the test as negative on the NHS Covid App (without actually taking it) and hey presto - you have a Covid Pass valid for 48 hours