with Gene apparently having some extra time to now work on this Now might be the time for end users to be posting issues. it would definitely show there is still lots of interest in his creation.
https://github.com/genielabs/HomeGenie/issues
Posting suggestions here also will get some interest and may even make it into a new release.
As a software developer myself I love to see posts expressing interest in my creations if nothing else it gets me motivated.
As I previously mentioned, HG wouldn't have a very big X10 user base. Even at its most popular phase X10 postings were fairly limited.
Just out of curiosity I tried X10 on as many Raspberry Pi based platforms as i could and had some very promising results. It didn't bother me too much that I had to install either Heyu or Mochad as a separate server on the same Pi to achieve this.
It was out of this experimentation I found Home Assistant to be the most versatile solution for me.
A lot of experienced Home Genie users are still lurking but in a lot of cases have since moved on to other platforms. Bounz who decided to fork the Home Genie project has now bowed out. This leaves the user base at the mercy of Gene, the original author.
By all means people can take the chance that the Home Genie project will come alive again, or they can start familiarising themselves with fully active alternatives.
I personally would not sell anyone on any particular solution owing to volatile nature of some of these platforms but I will suggest that you try a number of them and make your own choice of what suits best.