I've taken the creator of TravellerMap.com out to lunch several times when at TravellerCon.
Due to the conditions of his job, he can't accept any monetary donations or payment for his work on TravellerMap.com.
Obsidian now has a native query ability via the Bases core plugin. I've barely played with it though.
If you are not wed to git, and are willing to try something else, why not give Fossil SCM a try. It's created and maintained by the creator of SQLite. It's a single executable that provides everything for modern source code management, including a website, and even has an official docker file that just works.
Issue tracking, forum support, email, it's all there, in a single executable that can serve as both the front and back end depending on how you launch it. And it's a smaller install than git by itself.
I've been an on and off member of the ARRL every since I was first licensed in the 90s. At one point, I was even a VE. I don't remember exactly what made me decide to drop membership many years ago, but in the following years the actions of the ARRL have not inspired confidence.
I have received zero emails about my VE status, and I haven't participated in any licensing sessions in years.
I'm a registered user of LotW, but not an ARRL member. Pretty sure they sent it to all registered users.
Yes, the story engine is the core system. It's primarily what I used for my solo game, as Traveller has enough other systems to fill in the world running. But I think the character engine might be simpler than using something like the Traveller 5 personals system if you truly need some randomness to how NPCs will react.
I'm going to suggest the Motif system, as it has Story, Character, and World emulators that might make it easier to run.
https://www.drivethrurpg.com/en/publisher/7970/thought-punks/category/38729/motif-framework
I have used this system for a solo game of Traveller and it worked quite well.
One per universe. Of course I play ttrpgs.
Biggest issue I see with gramps-web is that it is only available as a docker image. While awesome from a distribution standpoint, many don't have a docker based web hosting account.
Already own those. They are quite good and if you like random tables of fun stuff with an excellent Traveller theme, I recommend them.
Blue Planet is getting an update - Blue Planet: Recontact
The Kickstarter closed some time ago, and several beta PDFs have been provided.
Start with plain old Gramps. It can export to static sites with several different templates. Gramps Web is not easy to host or run. It was designed for some specialized things.
https://gramps-project.org/blog/