The first thing I tried was Cryptomator-CLI. I had previously got that running on a different machine for Dropbox. But it looks like it hasn’t been updated since 2017.
I tried compiling the cryptomator-develop project using jdk 14 and I think JavaFX. It initially gave me errors but compiled to the end. But when I tried to run it with the linux launch bash script, I got the following error (JavaFX missing). I take it that’s what you were referring to.
Exception in thread “main” java.lang.NoClassDefFoundError: javafx/beans/binding/Binding
at org.cryptomator.common.CommonsModule_ProvideScheduledExecutorServiceFactory.provideScheduledExecutorService(CommonsModule_ProvideScheduledExecutorServiceFactory.java:37)