I welcome the participation in the cool solutions through voluntary help, and refer to our blog article on this topic: Univention: GitHub und die Cool Solutions
The above instructions by @lleo are very risky. Mixing packages from UCS 5.0 and 5.2 will lead to unforeseen consequences. Please be warned do not do this in a productive environment!
On the question why Univention does not fix it, as it probably would not take much effort, have some thoughts but does not belong here
That is not correct! Its still on going, as you can see in our public github repo GitHub - univention/cool-solutions: Cool Solutions
Current Status: We don’t want to release just one cool solution, nor all of them, but a whole bunch. We’re currently in the phase of adjusting and QA for the individual packages and still plan it for the next weeks to ship:
univention-homedir-autocreate
univention-nextcloud-samba-share-config
univention-nextcloud-schema
univention-printer-assignment
univention-sudo-ldap-host
univention-sudo-ldap-server
univention-user-group-sync-dest
univention-user-group-sync-source
univention-usercert
I’m sorry that it keeps getting delayed or taking so long. Unfortunately, it’s taking some time because the sponsorship is very low. For example, give an order for an update would speed things up considerably. Especially if “your” cool solution is not in the list above.