I couldn't get into work today due to traffic jams caused by a sudden snowfall overnight, so I've spent the day putting together a Rails 5.2 app and getting it up-and-running here on kiniro.uk.
Rails 5.2 isn't officially released yet (I'm using the release candidate), but one of its new Killer Features™ is ActiveStorage, which makes file uploads a breeze out-of-the-box. I've previously been using the Paperclip gem for work-related projects, which works Just Fine, though it does require new database columns to be added in order to attach stuff to specific tables, whilst ActiveStorage does not.
Anyway, that's all for now - things are still very incomplete, and I have to get everything ship-shape before I tell nginx to make this available on port 80.
PS: I'll also need to set up SSL via LetsEncrypt at some point - one thing at a time...