I haven't tried out https://hapi.run/, but I've tried similar things and in my experience Omnara is much more reliable than the other solutions, as well as I enjoy the UX of Omnara much more. Give it a try, it's one command to set up and the free tier gives you everything that the paid tier does, so you can decide if you like it before paying!
I mean messages drop or stall, or syncing doesn't work, or I can't get through setup at all. But I'm sure all these solutions have improved greatly since I've tried them, I tried these things much earlier on.
If hapi works perfectly for you, then maybe Omnara wouldn't be much of a value add. Are there any pain points you face with hapi?