diff --git a/configuration.nix b/configuration.nix
index ff02b18..f289537 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -37,7 +37,7 @@
     flatpak.enable = true;
   };
 
-  security = {rtkit.enable = true;};
+  security.rtkit.enable = true;
 
   nix = {
     settings = {
@@ -46,22 +46,13 @@
     };
   };
 
-  nixpkgs.config = {
-    allowUnfree = true;
-    permittedInsecurePackages = [
-      "librewolf-151.0.1-2"
-      "librewolf-unwrapped-151.0.1-2"
-      "librewolf-bin-151.0.1-2"
-      "librewolf-bin-unwrapped-151.0.1-2"
-    ];
-  };
+  nixpkgs.config.allowUnfree = true;
 
   environment = {
     systemPackages = with pkgs; [
       # Nix
       nh
       alejandra
-      nil
       # system utils
       firmware-updater
       mtr
@@ -151,7 +142,7 @@
       unifont
       unifont_upper
       unifont-csur
-      # monospace fonts
+      # terminal fonts
       nerd-fonts.bigblue-terminal
     ];
     fontconfig = {
@@ -163,6 +154,8 @@
   xdg.portal = {
     enable = true;
     config.common.default = ["gtk"];
-    extraPortals = with pkgs; [xdg-desktop-portal-wlr];
+    extraPortals = with pkgs; [
+      xdg-desktop-portal-wlr
+    ];
   };
 }
diff --git a/users/coyote/default.nix b/users/coyote/default.nix
index a454a97..0e4eeaa 100644
--- a/users/coyote/default.nix
+++ b/users/coyote/default.nix
@@ -16,16 +16,17 @@ in {
     defaultUserShell = pkgs.fish;
   };
 
-  # packages direcly within system environment
   environment = {
     systemPackages = with pkgs; [
       # programming
       biwascheme
       guile
-      marksman
-      lua-language-server
+      racket
+      sbcl
+      # LSPs
       ty
-      jdt-language-server
+      nil
+      marksman
       systemd-lsp
       bash-language-server
     ];
diff --git a/users/coyote/home.nix b/users/coyote/home.nix
index 3dd0ede..4367e02 100644
--- a/users/coyote/home.nix
+++ b/users/coyote/home.nix
@@ -34,7 +34,6 @@
       "org.audacityteam.Audacity"
       "com.usebottles.bottles"
       "org.nickvision.tubeconverter"
-      "org.racket_lang.Racket"
     ];
   };
 
@@ -61,10 +60,18 @@
         };
         theme = "gruvbox";
       };
+      languages = {
+        language = [
+          {
+            name = "scheme";
+            indent.tab-width = 4;
+            indent.unit = "    ";
+          }
+        ];    
+      };
     };
     fastfetch = {
       enable = true;
-      # config taken from examples/13.jsonc
       settings = {
         "$schema" = "https://github.com/fastfetch-cli/fastfetch/raw/dev/doc/json_schema.json";
         logo = {