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!
when you say reliable what do you mean? hapi never once failed for me, it’s self hosted + tailscale so pretty robust
reliability is not big selling point given the high cost on unlimited sessions which I use quite a bunch