docs: add README.md

README.md

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+# Nix wrapper for Lazy.nvim
+## Installation
+### For flakes (recommended)
+```
+{
+  # Add flake to your flakes inputs:
+  inputs.nix-lazy-nvim.url = "git+https://git.moritzboeh.me/moritz/NixLazy.nvim";
+
+  outputs = { self, nixpkgs, nix-lazy-nvim, ... }:
+    {
+      # ...
+      nixosConfiguration."<your-hostname>" = nixpkgs.lib.nixosSystem {
+        # ...
+
+        modules = [
+          {
+            home-manager.sharedModules = [ inputs.nix-lazy-nvim.homeManagerModules.default ];
+          }
+        ];
+        # ...
+      };
+      # ...
+    };
+}
+```
+
+## Usage
+See also [lazy.nvim](https://github.com/folke/lazy.nvim/#-plugin-spec) plugin spec.
+
+| Property | Type | Description |
+|----------|------|-------------|
+| plugin   | derivation | The plugins vimPlugin derivation. |
+| lazy     | bool       | Like [lazy.nvim](https://github.com/folke/lazy.nvim/#-plugin-spec). |
+| enabled  | bool | Like [lazy.nvim](https://github.com/folke/lazy.nvim/#-plugin-spec) |
+| dependecies | list attrset | List of plugin definitions. |
+| init | str | Lua code to run on startup. |
+| opts | attrset | Attrset of primitive types (str, bool, int, float, list, attrset) which gets transformed into lua |
+| conf | str | Lua code. Like config function body in [lazy.nvim](https://github.com/folke/lazy.nvim/#-plugin-spec) |
+| event | list str | List of event names to lazy load on. |
+| cmd | list str | List of commands to lazy load on. |
+| ft | list str | List of filetypes to lazy load on. |
+| keys | attrset | See [Example](#example) |
+| priority | int | Like [lazy.nvim](https://github.com/folke/lazy.nvim/#-plugin-spec) |
+
+
+## Example
+
+```nix
+{ pkgs, ... }:
+
+{
+  programs.neovim.lazy.plugins = with pkgs.vimPlugins; [
+    # Simple lazy loaded plugin based on events
+    {
+      plugin = nvim-surround;
+      event = [ "BufReadPost" "BufNewFile" ];
+      opts = { };
+    }
+
+    # Or based on keys
+    {
+      plugin = refactoring-nvim;
+      keys = [
+        { key = "<leader>re"; cmd = ": Refactor eextract "; desc = "Extract"; mode = [ "x" ]; }
+        { key = "<leader>rf"; cmd = ": Refactor extract_to_file "; desc = "Extract to file"; mode = [ "x" ]; }
+        { key = "<leader>rv"; cmd = ": Refactor extract_var "; desc = "Extract variable"; mode = [ "x" ]; }
+        { key = "<leader>ri"; cmd = ": Refactor inline_var"; desc = "Inline variable"; mode = [ "n" "x" ]; }
+        { key = "<leader>rI"; cmd = ": Refactor inline_func"; desc = "Inline function"; mode = [ "n" "x" ]; }
+        { key = "<leader>rb"; cmd = ": Refactor extract_block"; desc = "Extract block"; mode = [ "n" ]; }
+        { key = "<leader>rbf"; cmd = ": Refactor extract_block_to_file"; desc = "Extract block to file"; mode = [ "n" ]; }
+      ];
+      dependencies = [
+        { plugin = plenary-nvim; }
+        { plugin = nvim-lspconfig; }
+      ];
+      opts = { };
+    }
+
+    # Example usage for color themes. Should have a high priority and should not be lazy loaded.
+    # Also shows usage of conf.
+    {
+      plugin = catppuccin-nvim;
+      conf = ''
+        require("catppuccin").setup({
+          compile_path = vim.fn.stdpath("cache") .. "/catppuccin", -- fix issue of writing to nix store
+        })
+        vim.cmd.colorscheme("catppuccin-macchiato")
+      '';
+      lazy = false;
+      priority = 99;
+    }
+  ];
+}
+```