+TrashWorkers:
+
+ Maximum number of concurrent trash operations. Default is 1, i.e.,
+ trash lists are processed serially.
+
+EmptyTrashWorkers:
+
+ Maximum number of concurrent block deletion operations (per
+ volume) when emptying trash. Default is 1.
+
+PullWorkers:
+
+ Maximum number of concurrent pull operations. Default is 1, i.e.,
+ pull lists are processed serially.
+
+TLSCertificateFile:
+
+ Path to server certificate file in X509 format. Enables TLS mode.
+
+ Example: /var/lib/acme/live/keep0.example.com/fullchain
+
+TLSKeyFile:
+
+ Path to server key file in X509 format. Enables TLS mode.
+
+ The key pair is read from disk during startup, and whenever SIGHUP
+ is received.
+
+ Example: /var/lib/acme/live/keep0.example.com/privkey
+