System: Generate manpage caches (so the neovim man picker finds them)

home/christoph/default.nix

@@ -262,6 +262,7 @@
     sessionVariables = lib.mkMerge [
       {
         LANG = "en_US.UTF-8";
+        MANPAGER = "nvim +Man!";
       }
       (lib.mkIf (!headless) {
         # TERMINAL = "alacritty -o font.size=12";

system/default.nix

@@ -176,7 +176,7 @@ with mylib.networking; {
   documentation = {
     enable = true;
     man.enable = true;
-    man.generateCaches = false; # very slow
+    man.generateCaches = true; # Slow but needed for neovim man picker
     info.enable = true;
     dev.enable = true;
     doc.enable = false;