The one not being able to, is Spartacus not downloading, copying or writing the essential .htaccess file, which is in GitHub repo definitely and also in the manual downloaded plugin via Spartacus board.
Mirror is default: 'Netmirror.org', but even 's9y.org' does the same. This was with Spartacus version: 2.23 on 1.6.1 and I have the same with Spartacus 2.29 and github as mirror with 1.7.
Any ideas?
I think this is quite essential for some plugins!
Edit:
Also the manual downloaded plugin has a CVS/ dir, which is not in the spartacus online downloaded plugin. But there isn't any scripting removement of 'CVS' or '.htaccess' in serendipity_event_spartacus.php file...
