nixos/tinc: allow configuration of RSA private key file #93538
Motivation for this change
This is necessary for VPNs where some of the nodes run pre-1.1 versions, as those nodes can't use Ed25519 keys.
Most of Linux distros and even the
Created a new option to use RAS key files. I ran this for three months now without an issue.
This is necessary for VPNs where some of the nodes run pre-1.1 versions. Most of Linux distros  and even the nixpkgs.tinc attribute run on that version, so it might be useful to have that option.  https://repology.org/project/tinc/versions