update vim

default.nix

@@ -16,5 +16,6 @@
     ./modules/security-tools.nix
     ./modules/status-on-console.nix
     ./modules/sway.nix
+    ./modules/vim.nix
   ];
 }

modules/cli.nix

@@ -42,15 +42,6 @@ in
 
     (writeShellScriptBin "nix-roots" "nix-store --gc --print-roots | grep -v ^/proc/")
 
-    (vim_configurable.customize {
-      name = "vim";
-      vimrcConfig.customRC = ''
-        syntax enable
-        filetype plugin indent on
-        set nowrap ruler scrolloff=9 backspace=start,indent
-      '';
-    })
-
     (writeScriptBin "zfsram" ''
       #!${pkgs.python3}/bin/python
       for ln in open('/proc/spl/kstat/zfs/arcstats').readlines():

modules/vim.nix

@@ -0,0 +1,22 @@
+{ config, pkgs, ... }:
+let
+  legacy = (config.system.nixos.release == "20.09");
+in
+{
+
+  environment.systemPackages = if legacy then [ pkgs.vim ] else [ ];
+
+  programs = if legacy then { } else {
+    neovim = {
+      enable = true;
+      viAlias = true;
+      configure = {
+        packages.foo.start = [ pkgs.vimPlugins.vim-nix ];
+        customRC = ''
+          set nowrap scrolloff=9
+        '';
+      };
+    };
+  };
+
+}