Unable to Create Collections

[ManApart]

I'm trying to set up this plugin and given a clean slate (no existing calendars), any event type I try to create gives me this error. Creating a collection seems to work fine if I don't have they storage type set to decSync. I'm guessing I'm doing something wrong in my setup, but I'm not sure what it is.

 [2021-12-25 15:02:06 +0000] [247412/Thread-3] [DEBUG] Request content:
 <?xml version="1.0"?>
 <mkcol xmlns="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav" xmlns:ICAL="http://apple.com/ns/ical/">
   <set>
     <prop>
       <resourcetype>
         <collection />
         <C:calendar />
       </resourcetype>
       <C:supported-calendar-component-set>
         <C:comp name="VEVENT" />
         <C:comp name="VTODO" />
       </C:supported-calendar-component-set>
       <displayname>Test</displayname>
       <ICAL:calendar-color>#8fadb9ff</ICAL:calendar-color>
     </prop>
   </set>
 </mkcol>
 Uncaught Kotlin exception: org.decsync.library.InvalidInfoException
     at  (0x7f8729da96af)
     at  (0x7f8729da97b3)
     at  (0x7f8729d93c15)
     at  (0x7f8729daa02e)
     at  (0x7f8729dab9fd)
     at decsync_so_set_entry (0x7f8729e3f70a)

$ cat /etc/radicale/config
[auth]
....

[server]
...

[storage]
type = radicale_storage_decsync
decsync_dir = ~/.local/share/decsync

I don't believe that the service, running as user radicale, will have access to that directory. I'll try to set the directory up for one that exists / has permissions and see if that's actually the cause of the error.