indi_nexstarevo in included with indi-full by default. It is a separate driver and can be installed from the indi-nexstarevo package. You can install release version of the driver from the main INDI PPA, and the development version of the driver from the alternative PPA.
Warning: This is a beta-quality driver and should be treated as such. There are no known functional issues with it and only one long-stability issue. The driver should not be left operational unattended.
The Celestron Nextstar supports all GOTO and sky alignment functions of NexStar Evolution telescopes. In principle it should support any Celestron scope using AUX command set (most of them) with SkyFi wireless module. It was never tested with equatorial mount but should in principle work with it using sky alignment framework.
The driver auto-detects the scope on the network so the operation should be similar to other telescope drivers. You do not need to set anything in communication setup. Let me know if you have any problems with connections. Serial communication is not implemented yet. It is on the list, but quite low on it.
There are no known functional bugs for this driver, but still it is not as stable as it should be and it is not fully polished yet. If you found a bug, please report it in (preferably) github issue tracker for the driver or a main INDI project issue tracker. (You can log in with a variety of existing accounts, including Google, Yahoo and OpenID.)