I'm trying to connect the front end on Mac OS (version 13.0) use a remote (also 13.0) kernel running on an Ubuntu machine. I've followed the basic steps here (https://reference.wolfram.com/language/howto/ConnectToARemoteKernel.html), but ended up with a similar issue as described in this post . The error is
The kernel voyager failed to connect to the front end. (Error = MLECONNECT). You should try running the kernel connection outside the front end.
In  they mention using this 3rd party wolfram library which seems like not a very elegant solution since Mathematica is apparently designed to be used out of the box for remote dev. Since  was written almost 9 years ago I'm wondering if there is a simpler/modern solution for remote dev in WL.
any ideas how to set up the remote kernel to use the default ssh key instead of asking for authentication every time?