Oh, sorry, I overlooked the word “and” for the two conditions.
Your only option currently is using the CLI.
about the CLI Version by incompatible you mean they won’t be able to read each others vaults?
Only one way incompatible. The CLI cannot read vaults created with version 1.5.0 of Cryptomator. For the other direction, version 1.5.0 will upon request migrate vaults of old formats to the new format. For more info, again see Cryptomator + FolderSync on Linux - #4 by harry.