mrichards Hi Marc, thanks for bringing this to my attention again. The drawback of PWA is that it needs some additional files on disk. Honestly I haven't looked at whether we can make it available, as it also takes down the whole forum when it hits any issues -- not just the users on the PWA, but the whole forum will be unavailable.
We will look at this extension, but I cannot promise this to happen soon as stabilising our platform for public access has priority.