feat: add separate neovim config for manpager use

users/modules/config/manpager/default.nix

@@ -0,0 +1,14 @@
+{pkgs, ...}: let
+  nvimPager = pkgs.wrapNeovimUnstable pkgs.neovim-unwrapped nvimConfig;
+  nvimConfig =
+    pkgs.neovimUtils.makeNeovimConfig {
+      wrapRc = false;
+      withPython3 = false;
+      withRuby = false;
+    }
+    // {
+      wrapperArgs = ["--add-flags" "--clean -u ${./init.lua}"];
+    };
+in {
+  home.sessionVariables.MANPAGER = "${nvimPager}/bin/nvim '+Man!'";
+}

users/modules/config/manpager/init.lua

@@ -0,0 +1,11 @@
+vim.opt.buftype = "nowrite"
+vim.opt.backup = false
+vim.opt.modeline = false
+vim.opt.shelltemp = false
+vim.opt.swapfile = false
+vim.opt.undofile = false
+vim.opt.writebackup = false
+vim.opt.shadafile = vim.fn.stdpath "state" .. "/shada/man.shada"
+
+-- Make sure to use ANSI colors
+vim.opt.termguicolors = false

users/modules/default.nix

@@ -5,6 +5,7 @@
 
     ./config/htop.nix
     ./config/impermanence.nix
+    ./config/manpager
     ./config/neovim.nix
     ./config/shell
     ./config/utils.nix