For me (I use Kavita) it’s because I want to be able to just pick up whatever device is in front of me at the moment and pick up the book where I last left off even if it was on another device

One thing to look at if you’re going this route is whether your router supports NAT loopback (a.k.a. NAT reflection or NAT hairpinning). This feature means that you can access your server via the external IP (and therefore via the ddns domain name) even from within your network. It’s really useful for phones and laptops that might be on your home network at some times and off somewhere else at other times, so you don’t have to change configurations on e.g. the Nextcloud client, or remember to type in different addresses inside and outside the network. Some routers just do this, some don’t, some it’s a setting you have to turn on. The router built into my ISP-supplied cable modem didn’t support it so I got my own router and put the ISP one into bridge mode.

When I first learned that Reddit would be pricing out third-party apps I was angry and upset, but I still entertained the notion of maybe continuing to use old.reddit on the desktop (until they inevitably killed that). I like many of the communities there and didn’t want to give them up.

But then came the AMA and the leaked memo and the crushing of the protests with threats and strongarm tactics. Everything spez wrote dripped with contempt for the community and the moderators that had made the site what it was through their unpaid labor. The message became clear: “Let the little users cry it out. They’ll have their little tantrum and then they’ll settle down and accept that the reality is that we can do anything we want to them and they have to just accept it. Their communities, their conversations, their culture, it all belongs to us, not to them. We have everything and they have nothing”.

I’m not going back to that.