First of all - thank you for your great job bringing 7.1.4 to rpi! 
And congratulations - the seafile team managed to get seafile for rpi working with seadrive in combination with shared libraries! This is indeed good news! 
After reading all the useful comments I was able to get WebDAV working at least.
Unfortunately seaf-fuse does make problems - it seems to start but it doesn’t work. The mounted folder is empty and it shows the following errors when I do ‘systemctl start seafile-server.service’.
Mai 25 19:32:53 hermes seaf-fuse[9180]: g_key_file_has_key_full: assertion 'key_file != NULL' failed
Mai 25 19:32:53 hermes seaf-fuse[9180]: g_propagate_error: assertion 'src != NULL' failed
Mai 25 19:32:53 hermes seaf-fuse[9180]: g_key_file_has_key_full: assertion 'key_file != NULL' failed
Mai 25 19:32:53 hermes seaf-fuse[9180]: g_propagate_error: assertion 'src != NULL' failed
Mai 25 19:32:53 hermes seaf-fuse[9180]: g_key_file_get_integer: assertion 'key_file != NULL' failed
Mai 25 19:32:53 hermes seaf-fuse[9180]: g_key_file_has_key_full: assertion 'key_file != NULL' failed
Mai 25 19:32:53 hermes seaf-fuse[9180]: g_propagate_error: assertion 'src != NULL' failed
Mai 25 19:32:55 hermes seafile-server[9035]: seaf-fuse started
Mai 25 19:32:55 hermes seafile-server[9035]: Done.
Similar thing when I try to start via script.
seafile-user@hermes:~/seafile-server-7.1.4$ ./seaf-fuse.sh start /media/seafile-fuse
Starting seaf-fuse, please wait ...
(process:3763): GLib-CRITICAL **: 17:56:09.562: g_key_file_has_key_full: assertion 'key_file != NULL' failed
(process:3763): GLib-CRITICAL **: 17:56:09.563: g_propagate_error: assertion 'src != NULL' failed
(process:3763): GLib-CRITICAL **: 17:56:09.563: g_key_file_has_key_full: assertion 'key_file != NULL' failed
(process:3763): GLib-CRITICAL **: 17:56:09.563: g_propagate_error: assertion 'src != NULL' failed
(process:3763): GLib-CRITICAL **: 17:56:09.563: g_key_file_get_integer: assertion 'key_file != NULL' failed
(process:3763): GLib-CRITICAL **: 17:56:09.563: g_key_file_has_key_full: assertion 'key_file != NULL' failed
(process:3763): GLib-CRITICAL **: 17:56:09.563: g_propagate_error: assertion 'src != NULL' failed
seaf-fuse started
Done.
Any hints for me?