Yeah, I think the existing code can be made simpler and optionally support EA releases. But we're running out of time for 25-EA releases because G.A. is happening on Tuesday 9/16.

nix-jabba looks like it covers the use-cases that I currently use SDKMAN! for -- that's cool!

But, I still think having EA releases in Nixpkgs will be helpful for working on flakes (inside and outside of Nixpkgs) that have dependencies on EA JDKs and possibly other packages (such as Gradle) That's why I made the nixpkgs-jdk-ea repo (which might be better implemented as an overlay)

The Zulu PR is failing nixpkgs-vet with the following message:

Attribute `pkgs.zulu25` is a new top-level package using `pkgs.callPackage ./pkgs/development/compilers/zulu/25.nix { /* ... */ }`.
  Please define it in pkgs/by-name/zu/zulu25/package.nix instead.
  See `pkgs/by-name/README.md` for more details.
  Since the second `callPackage` argument is `{ }`, no manual `callPackage` in pkgs/top-level/all-packages.nix is needed anymore.

This PR introduces additional instances of discouraged patterns as listed above. Merging is discouraged but would not break the base branch.