finally caved and removed my redundant color scheme definition in the flake.nix file to use stylix's built-in color scheme definition

flake.nix

@@ -41,31 +41,6 @@
   } @ inputs: let
     system = "x86_64-linux";
     username = "pagedmov";
-    wallpaper = "${self}/assets/wallpapers/sleeping-blackmetal.png";
-    base16scheme = "black-metal-immortal"; # can be easily changed with the chscheme script
-
-    # Map colors from yaml to attribute set
-    # Extracting colors into a set here allows them to be propagated across the entire config, with or without stylix
-    lib = nixpkgs.lib;
-    pkgs = import nixpkgs {system = "x86_64-linux";};
-    scheme_path = "${pkgs.base16-schemes}/share/themes/${base16scheme}.yaml";
-    scheme_string = builtins.readFile scheme_path;
-    scheme_list = lib.splitString "\n" "${scheme_string}";
-    colors = lib.filter (line: builtins.match "^ *base[0-9A-F]{2}: .*" line != null) scheme_list;
-    scheme =
-      lib.lists.foldl' (
-        acc: line: let
-          splitLine = lib.splitString ": " line;
-          key = builtins.elemAt splitLine 0;
-          value = builtins.elemAt splitLine 1;
-          trimmedKey = lib.trim key;
-          cleanValue_step1 = lib.splitString " " value;
-          cleanValue_step2 = builtins.elemAt cleanValue_step1 0;
-          cleanValue_final = builtins.substring 1 (builtins.stringLength cleanValue_step2 - 2) cleanValue_step2;
-        in
-          acc // {"${trimmedKey}" = cleanValue_final;}
-      ) {}
-      colors;
   in {
     homeManagerModules.default = ./modules/home;
 
@@ -73,7 +48,7 @@
       oganesson = nixpkgs.lib.nixosSystem {
         specialArgs = {
           host = "oganesson";
-          inherit self inputs scheme wallpaper username;
+          inherit self inputs username;
         };
         inherit system;
         modules = [
@@ -88,7 +63,7 @@
       mercury = nixpkgs.lib.nixosSystem {
         specialArgs = {
           host = "mercury";
-          inherit self inputs scheme wallpaper username;
+          inherit self inputs username;
         };
         modules = [
           ./hosts/laptop/config.nix
@@ -102,7 +77,7 @@
       xenon = nixpkgs.lib.nixosSystem {
         specialArgs = {
           host = "xenon";
-          inherit self inputs scheme username;
+          inherit self inputs username;
         };
         modules = [
           ./hosts/server/config.nix

hosts/desktop/home.nix

@@ -4,9 +4,7 @@
   self,
   inputs,
   username,
-  wallpaper,
   lib,
-  scheme ? {},
   config,
   ...
 }: let
@@ -17,7 +15,7 @@ in {
     useUserPackages = true;
     useGlobalPkgs = true;
     backupFileExtension = "backup";
-    extraSpecialArgs = {inherit self inputs host wallpaper scheme username nur;};
+    extraSpecialArgs = {inherit self inputs host username nur;};
     users = {
       ${username} = {
         programs.home-manager.enable = true;

hosts/laptop/home.nix

@@ -4,9 +4,7 @@
   self,
   inputs,
   username,
-  wallpaper,
   lib,
-  scheme ? {},
   config,
   ...
 }: let
@@ -17,7 +15,7 @@ in {
     useUserPackages = true;
     useGlobalPkgs = true;
     backupFileExtension = "backup";
-    extraSpecialArgs = {inherit self inputs host wallpaper scheme username nur;};
+    extraSpecialArgs = {inherit self inputs host username nur;};
     users = {
       ${username} = {
         programs.home-manager.enable = true;

hosts/server/home.nix

@@ -4,7 +4,6 @@
   self,
   inputs,
   lib,
-  scheme,
   username,
   config,
   ...
@@ -17,7 +16,7 @@ in {
     useUserPackages = true;
     useGlobalPkgs = true;
     backupFileExtension = "backup";
-    extraSpecialArgs = { inherit self inputs scheme host username nur; };
+    extraSpecialArgs = { inherit self inputs host username nur; };
     users = {
       ${username} = {
         programs.home-manager.enable = true;

modules/home/environment/spicetify.nix

@@ -1,5 +1,6 @@
-{lib, config, pkgs, inputs, scheme ? {}, ... }: let
+{lib, config, pkgs, inputs, ... }: let
   spicePkgs = inputs.spicetify-nix.legacyPackages.${pkgs.system};
+  scheme = config.lib.stylix.colors;
 in {
   imports = [inputs.spicetify-nix.homeManagerModules.default];
   options = {

modules/home/environment/stylix.nix

@@ -1,4 +1,4 @@
-{lib, config, pkgs, scheme ? {}, wallpaper, ... }: {
+{lib, config, pkgs, ... }: {
   options = {
     stylixHomeConfig.enable = lib.mkEnableOption "enables my stylix Home-Manager options";
   };

modules/home/environment/waybar.nix

@@ -1,4 +1,4 @@
-{pkgs, scheme ? {}, host, lib, config, ...}:
+{pkgs, host, lib, config, ...}:
 
 let
   desktop = host == "oganesson";
@@ -22,6 +22,8 @@ let
         "eDP-1" = [1 2 3 4];
       };
   };
+
+  scheme = config.lib.stylix.colors;
   bg = {
     darkester = scheme.base00;
     darkest = scheme.base01;
@@ -435,7 +437,7 @@ in {
           }
 
           #custom-power {
-            color: #${colors.color0};
+            color: #${colors.color2};
             font-size: 18px;
           }
 
@@ -445,7 +447,7 @@ in {
           }
 
           #custom-reboot {
-            color: #${colors.color2};
+            color: #${colors.color0};
             font-size: 18px;
           }
 

modules/home/files.nix

@@ -1,10 +1,11 @@
-{pkgs, scheme, lib, self, config, ... }:
+{pkgs, lib, self, config, ... }:
 
 # This folder is for programs that do not have existing configuration modules in NixOS.
 # Basically a to-do list for stuff I need to write my own modules for.
 let
   # Custom theme that activates in ssh
   ssh_base16 = "atelier-cave";
+  def_scheme = config.lib.stylix.colors;
 
   scheme_path = "${pkgs.base16-schemes}/share/themes/${ssh_base16}.yaml";
   scheme_string = builtins.readFile scheme_path;
@@ -140,39 +141,39 @@ in
       '';
 
       ".config/kitty/default-theme.conf".text = ''
-        background #${scheme.base00}
-        foreground #${scheme.base05}
-        selection_background #${scheme.base05}
-        selection_foreground #${scheme.base00}
-        url_color #${scheme.base04}
-        cursor #${scheme.base05}
-        active_border_color #${scheme.base03}
-        inactive_border_color #${scheme.base01}
-        active_tab_background #${scheme.base00}
-        active_tab_foreground #${scheme.base05}
-        inactive_tab_background #${scheme.base01}
-        inactive_tab_foreground #${scheme.base04}
-        tab_bar_background #${scheme.base01}
+        background #${def_scheme.base00}
+        foreground #${def_scheme.base05}
+        selection_background #${def_scheme.base05}
+        selection_foreground #${def_scheme.base00}
+        url_color #${def_scheme.base04}
+        cursor #${def_scheme.base05}
+        active_border_color #${def_scheme.base03}
+        inactive_border_color #${def_scheme.base01}
+        active_tab_background #${def_scheme.base00}
+        active_tab_foreground #${def_scheme.base05}
+        inactive_tab_background #${def_scheme.base01}
+        inactive_tab_foreground #${def_scheme.base04}
+        tab_bar_background #${def_scheme.base01}
 
         # normal
-        color0 #${scheme.base01}
-        color1 #${scheme.base08}
-        color2 #${scheme.base0B}
-        color3 #${scheme.base0A}
-        color4 #${scheme.base0D}
-        color5 #${scheme.base0E}
-        color6 #${scheme.base0C}
-        color7 #${scheme.base05}
+        color0 #${def_scheme.base01}
+        color1 #${def_scheme.base08}
+        color2 #${def_scheme.base0B}
+        color3 #${def_scheme.base0A}
+        color4 #${def_scheme.base0D}
+        color5 #${def_scheme.base0E}
+        color6 #${def_scheme.base0C}
+        color7 #${def_scheme.base05}
 
         # bright
-        color8 #${scheme.base03}
-        color9 #${scheme.base09}
-        color10 #${scheme.base01}
-        color11 #${scheme.base02}
-        color12 #${scheme.base04}
-        color13 #${scheme.base06}
-        color14 #${scheme.base0F}
-        color15 #${scheme.base07}
+        color8 #${def_scheme.base03}
+        color9 #${def_scheme.base09}
+        color10 #${def_scheme.base01}
+        color11 #${def_scheme.base02}
+        color12 #${def_scheme.base04}
+        color13 #${def_scheme.base06}
+        color14 #${def_scheme.base0F}
+        color15 #${def_scheme.base07}
       '';
       ".config/kitty/ssh-theme.conf".text = ''
         background #${ssh_scheme.base00}

modules/home/programs/kitty.nix

@@ -1,4 +1,4 @@
-{lib, config, pkgs, scheme ? {}, ... }: {
+{lib, config, pkgs, ... }: {
   options = {
     kittyConfig.enable = lib.mkEnableOption "enables my kitty configuration";
   };

modules/sys/environment/stylix.nix

@@ -1,19 +1,27 @@
 {
   pkgs,
-  scheme ? {},
-  wallpaper,
+  self,
   lib,
   config,
   ...
-}: {
+}:
+
+let
+  scheme = "black-metal-venom";
+in
+{
   options = {
     stylixConfig.enable = lib.mkEnableOption "enables custom stylix options";
   };
   config = lib.mkIf config.stylixConfig.enable {
     stylix = {
       enable = true;
-      base16Scheme = scheme;
-      image = wallpaper;
+      base16Scheme = "${pkgs.base16-schemes}/share/themes/${scheme}.yaml";
+      image =  "${self}/assets/wallpapers/sleeping-blackmetal.png";
+      homeManagerIntegration = {
+        autoImport = true;
+        followSystem = true;
+      };
       polarity = "dark";
       autoEnable = true;
       opacity.terminal = 0.5;

modules/sys/software/nixvim/options.nix

@@ -1,8 +1,12 @@
 {
-  scheme ? {},
   config,
   ...
-}: {
+}:
+
+let
+  scheme = config.lib.stylix.colors;
+in
+{
   programs.nixvim = {
     colorschemes.base16 = {
       enable = true;