As per the instructions found in https://github.com/NixOS/nixpkgs/blob/master/doc/languages-frameworks/vim.section.md
As per the instructions found in https://github.com/NixOS/nixpkgs/blob/master/doc/languages-frameworks/vim.section.md
* First run <code>./update.py</code>.
* Commit the changes with the commit message "vimPlugins: Update".
* Add your plugin to ./vim-plugin-names (please try to maintain the list alphabetically sorted). You can customize the branch by appending for example <code>@main</code> to an entry (search the file for examples)
* Run <code>./update.py</code> once again to generate the plugin's nix expression.
* Commit your changes one more time, this time with the message formated as such: "vimPlugins.[plugin-name]: init at [version]".
* If you need to add additional code/patches to the generated code, add those lines to <code>pkgs/misc/vim-plugins/vim2nix/additional-nix-code</code> and rerun <code>./update.py</code>. They will be included in the generated code.