diff --git a/home-manager-module.nix b/home-manager-module.nix
index 1d4aa0a..6cbf368 100644
--- a/home-manager-module.nix
+++ b/home-manager-module.nix
@@ -22,21 +22,48 @@ let cfg = config.ptitfred.posix-toolbox;
       lib.strings.optionalString config.programs.git.enable
         "source ${posix-toolbox.git-ps1}/share/posix-toolbox/git-ps1";
 
-    initExtra =
+    bashInitExtra =
       ''
         ${gitBashInitExtra}
         source ${posix-toolbox.ls-colors}/share/ls-colors/bash.sh
       '';
+
+    gitExtraConfig = {
+      bubbles = lib.attrsets.filterAttrs (_: value: ! (isNull value)) cfg.git-bubbles;
+    };
+
+    mkOptionalString = description:
+      lib.mkOption {
+        inherit description;
+        type = lib.types.nullOr lib.types.str;
+        default = null;
+      };
 in
 {
   options = {
-    ptitfred.posix-toolbox.enable = lib.mkEnableOption "posix-toolbox";
+    ptitfred.posix-toolbox = {
+      enable = lib.mkEnableOption "posix-toolbox";
+
+      git-bubbles = lib.mkOption {
+        description = "options for git-bubbles";
+        default = {};
+        type = (lib.types.submodule {
+          options = {
+            remote-name = mkOptionalString "remote-name";
+            pattern = mkOptionalString "pattern";
+          };
+        });
+      };
+    };
   };
 
   config = {
     home.packages = lib.mkIf cfg.enable packages;
 
     programs.bash.initExtra =
-      lib.mkIf (cfg.enable && config.programs.bash.enable) initExtra;
+      lib.mkIf (cfg.enable && config.programs.bash.enable) bashInitExtra;
+
+    programs.git.extraConfig =
+      lib.mkIf (cfg.enable && config.programs.git.enable) gitExtraConfig;
   };
 }
diff --git a/tests/hm-module.nix b/tests/hm-module.nix
index 72703e7..f7fe1ad 100644
--- a/tests/hm-module.nix
+++ b/tests/hm-module.nix
@@ -14,4 +14,7 @@
 
   # This is how you enable posix-toolbox features (depends on bash and git being active):
   ptitfred.posix-toolbox.enable = true;
+
+  # Example configuration for git-bubbles:
+  ptitfred.posix-toolbox.git-bubbles.remote-name = "mine";
 }