- Use separate JSON files to track sources for Nixpkgs and Nix releases
This greatly simplifies the code, because we can directly encode
versions as keys without ambiguity
- Avoid an instance of IFD for the redirect generation
- Use pkgs.substitute instead of builtins.replaceStrings
- Turn off the single-page feature for now. It was added by Valentin in
a previous commit, but I think we should discuss this a bit more
- Simplify a lot of the code and add comments
- Fix the mutable redirects, they were broken by a parent commit
- Remove pieces of Nix code that weren't used, like the import of the
Nixpkgs manual. This can be added in the future when necessary
- Make sure that Nix versions are cached by building from the store path
