neovim: use bas16 manually

configs/neovim.nix

@@ -1,6 +1,7 @@
 {
   pkgs,
   niveumPackages,
+  config,
   ...
 }: {
   environment.variables.EDITOR = pkgs.lib.mkForce "nvim";
@@ -35,7 +36,10 @@
 
   environment.systemPackages = [
     (pkgs.writers.writeDashBin "vim" ''neovim "$@"'')
-    niveumPackages.vim
+    (niveumPackages.vim.override {
+      stylixColors = config.lib.stylix.colors;
+      colorscheme = if config.networking.hostName == "fatteh" then "base16-grayscale-light" else "base16-grayscale-dark";
+    })
 
     # language servers
     pkgs.pyright