it works :D

modules/programs/browser.nix

@@ -0,0 +1,13 @@
+{ inputs, ... }: {
+	flake-file.inputs = {
+		helium-browser = {
+			url = "github:schembriaiden/helium-browser-nix-flake";
+			inputs.nixpkgs.follows = "nixpkgs";
+		};
+	};
+	flake.modules.nixos.browser = { pkgs, ... }: {
+		environment.systemPackages = [
+			inputs.helium-browser.packages.${pkgs.stdenv.hostPlatform.system}.default
+		];
+	};
+}

modules/programs/git.nix

@@ -0,0 +1,5 @@
+{
+	flake.modules.nixos.git = { pkgs, ... }: {
+		environment.systemPackages = [ pkgs.git ];
+	};
+}

modules/programs/nixvim/nixvim.nix

@@ -0,0 +1,18 @@
+{ inputs, ... }: {
+  flake-file.inputs = {
+    nixvim.url = "github:nix-community/nixvim/nixos-26.05";
+    nixvim.inputs.nixpkgs.follows = "nixpkgs";
+  };
+
+  flake.modules.homeManager.nixvim = {
+    imports = [
+      inputs.nixvim.homeModules.nixvim
+    ];
+
+    programs.nixvim = {
+      enable = true;
+    };
+
+    home.sessionVariables.EDITOR = "nvim";
+  };
+}

modules/programs/zsh/zsh.nix

@@ -0,0 +1,29 @@
+{ inputs, ... }:
+{
+	flake.modules.nixos.zsh = {
+		programs.zsh.enable = true;
+
+		environment.pathsToLink = [ "/share/zsh" ];
+	};
+
+	flake.modules.homeManager.zsh = { pkgs, ... }: {
+		imports = with inputs.self.modules.homeManager; [
+		];
+
+		programs.zsh = {
+			enable = true;
+
+			autocd = true;
+			enableCompletion = true;
+			autosuggestion.enable = true;
+			syntaxHighlighting.enable = true;
+
+			oh-my-zsh = {
+				enable = true;
+				plugins = [
+					"git"
+				];
+			};
+		};
+	};
+}