Well, for anyone who wants a quick fix that enables both 2.0 & IDE at the same time easily, here is an automated installer (that needs node in path). there are some other features/ideas too, but they might not all be working. The important part tho, the IDE install (which is silent) should work fine (as long as the download link stays unchanged).
Enjoy! (it works!! (kind of!!!))
Edit: I tried on my other PC, it did work, but it was a bit harder smhsmh. classic.
for the brave still: launch the .bat first, then look in Task Manager to see when Antigravity IDE Setup/Installer finishes (the completion bar goes from 0% to 100% directly in the UI (if it updates at all)). It might take quite some time, Defender myb slowing down the installation (not sure why, myb unsigned/unverified or smth? for the bravest, you can keep Defender off while it installs, but it’s gonna be fine either way unless you’re on a pepeCPU (like me)). Anyways, IF the UI bar doesn’t update to 100% by itself after the installer finishes/closes from the Task Manager, you can manually go to “Appdata/Local/Programs/Antigravity IDE” and you should see “Antigravity IDE.exe”. Open it, and the localhost UI should update/recognize the installation & enable access to other settings. gudjub warrior, the sjuggle ends here