@Danger There have been several really informative info sessions by NQ-BearClaw on the official discord. Some of the questions you asked have already been answered.
1) Yes. This comes in the form of an installer package which you can run on Windows 11 with WSL, or a dedicated Linux server. Your choice. It likely won't be long before game hosting companies pick this up and offer a managed server like they do for other games.
2) No. Not in its current form. The tools were changed and will require a code change to revert them back - no code is being altered for this initial release. That said, if enough people ask nicely I bet there would be motivation to get it done.
3) Yes - All options and settings are managed through the "Back Office". Every tweak to existing systems you can imagine is in there from what I understand - and it it's not, there are JSON files that you can edit.
4) By custom if you mean something that is not currently in the game, then no, unfortunately not. But it it's in the game, you can tweak it.
5) Fast travel - probably not in the sense of a teleport type beacon to beacon - but using the existing tools in the game, yes. You can adjust the cost and recipe for the warp cells to make them cost less or even nothing. Again - nothing that requires a code change, but anything else that is a setting or a recipe - yes.
6) Sure - you can adjust thrusters and winds and things, even the gravity on a planet.
7) There was mention by NQ-BearClaw that "mydu is a separate thing, and we have a plan for regular du players that want to switch. More on this later..." which I personally interpret that they are looking at ways to offset the cost of myDU for founders - but this is still tbd.
Personally I am still holding out hope that this is a positive spin on DU and that it will bring players back to the MMO eventually.
Cremora