just checked , in fact configuration is correctly saved in the file "~/.indi/ScopeDome Dome_config.xml"
(i did the test with "close on park" and "open on unpark"
but when i restart i need to manually load it, it is not automatically done, looks like the default config is loaded instead.

for the slaving i have an issue the dome is trying to find the position but turn in an endless loop, the same with absolute position
(this is working with network and scopdome windows drivers) .