nixpkgs contains a [list of 838 plugins][vim-plugin-names] as of this date. Regardless of this modest number, when trying out work-in-progress modules (or as it happened test modules for neovim X when X was not released yet).
I would like to mention that it is possible to maintain an out-of-nixpkgs list of neovim plugins via [nixos-doc].
You can use the updater script to generate basic packages out of a custom vim plugin list: pkgs/misc/vim-plugins/update.py -i vim-plugin-names -o generated.nix --no-commit
with the content of vim-plugin-names be like:
pwntester/octo.nvim
tjdevries/astronauta.nvim@main
You can then reference the generated vim overlay by:
let
myVimPlugins = pkgs.vimPlugins.extend (
(pkgs.callPackage ./generated.nix {})
);in
pkgs.neovim.override {
configure = {
packages.myPlugins = with pkgs.vimPlugins; {
start = [
myVimPlugins.octo-nvim
];};
}; }
vim-plugin-names: vim-plugin-names