So in this case, you have two machines, and you want each one to have a different configuration -- why not just have a different rc file on each machine and not bother syncing them. Is there a lot of custom dotfile config that you do want to share between them?
I have five machines (personal macOS laptop, work Ubuntu laptop, personal Debian server, work Ubuntu server, personal Raspberry Pi) and yes, there is a lot of custom config that I want to share between them, particularly my git, zsh, vim, and i3 configs.
