home configuration submodules and configure alacritty in nix file

modules/alacritty.nix

@@ -0,0 +1,12 @@
+{ config, lib, pkgs, username,homeDir, ... }:
+
+{
+  programs.alacritty = {
+    enable = true;
+	settings = {
+      window.opacity = 0.9;
+	  env.XTERM = "xterm-256color";
+	  font.size = lib.mkDefault 12;
+	};
+  };
+}

modules/git.nix

@@ -0,0 +1,14 @@
+{ config, lib, pkgs, username,homeDir, ... }:
+
+{
+  programs.git = {
+    enable = true;
+    userEmail = "tomoron@student.42angouleme.fr";
+    userName = "tomoron";
+	extraConfig.init.defaultBranch="master";
+    aliases = {
+	  fuck = "!f() { git reset --hard \"@{upstream}\" && git restore . && git clean -f .; };f";
+	  back = "reset HEAD~";
+    };
+  };
+}

modules/picom.nix

@@ -0,0 +1,25 @@
+{ config, lib, pkgs, username,homeDir, ... }:
+
+{
+  services.picom = {
+    enable = true;
+	package = pkgs.picom-pijulius;
+    backend = lib.mkDefault "glx";
+    vSync = true;
+    settings = {
+      blur = {
+        method = lib.mkDefault "gaussian";
+		size = lib.mkDefault 20;
+		deviation = lib.mkDefault 5.0;
+      };
+	  corner-radius=20;
+      rounded-corners-exclude = [
+        "window_type = 'dock'"
+	"class_g = 'Dunst'"
+      ];
+      blur-background-exclude = [
+        "class_g = 'activate-linux'"
+      ];
+    };
+  };
+}