diff --git a/stages/org.osbuild.debian.source b/stages/org.osbuild.debian.source
new file mode 100644
index 00000000..8033b407
--- /dev/null
+++ b/stages/org.osbuild.debian.source
@@ -0,0 +1,132 @@
+#!/usr/bin/python3
+import os
+import sys
+import subprocess
+import json
+import tempfile
+import shutil
+
+import osbuild.api
+
+
+def download_source_package(package_name, suite, mirror, output_dir):
+    """Download Debian source package"""
+    
+    # Create temporary directory for download
+    with tempfile.TemporaryDirectory() as temp_dir:
+        os.chdir(temp_dir)
+        
+        # Use apt-get source to download package
+        cmd = ["apt-get", "source", package_name]
+        
+        print(f"Downloading source package: {' '.join(cmd)}")
+        
+        result = subprocess.run(cmd, capture_output=True, text=True)
+        if result.returncode != 0:
+            print(f"Error downloading source package:")
+            print(f"stdout: {result.stdout}")
+            print(f"stderr: {result.stderr}")
+            return False
+        
+        # Copy downloaded files to output directory
+        for file in os.listdir("."):
+            src = os.path.join(temp_dir, file)
+            dst = os.path.join(output_dir, file)
+            
+            if os.path.isdir(file):
+                shutil.copytree(src, dst)
+            else:
+                shutil.copy2(src, dst)
+            
+            print(f"Copied: {file}")
+    
+    return True
+
+
+def setup_apt_sources(tree, suite, mirror, components=None):
+    """Set up apt sources for the specified suite"""
+    
+    if components is None:
+        components = ["main", "contrib", "non-free"]
+    
+    sources_content = f"""deb {mirror} {suite} {' '.join(components)}
+deb {mirror} {suite}-updates {' '.join(components)}
+deb {mirror} {suite}-security {' '.join(components)}
+"""
+    
+    sources_path = os.path.join(tree, "etc/apt/sources.list")
+    os.makedirs(os.path.dirname(sources_path), exist_ok=True)
+    
+    with open(sources_path, "w") as f:
+        f.write(sources_content)
+    
+    print(f"Created sources.list for {suite}")
+
+
+def update_package_lists(tree):
+    """Update package lists"""
+    
+    cmd = ["chroot", tree, "apt-get", "update"]
+    
+    print("Updating package lists...")
+    
+    result = subprocess.run(cmd, capture_output=True, text=True)
+    if result.returncode != 0:
+        print(f"Error updating package lists:")
+        print(f"stdout: {result.stdout}")
+        print(f"stderr: {result.stderr}")
+        return False
+    
+    print("Package lists updated successfully")
+    return True
+
+
+def main(tree, options):
+    """Main function for debian source stage"""
+    
+    # Get options
+    package_name = options.get("package")
+    suite = options.get("suite", "bookworm")
+    mirror = options.get("mirror", "http://deb.debian.org/debian")
+    components = options.get("components", ["main", "contrib", "non-free"])
+    output_dir = options.get("output_dir", ".")
+    
+    if not package_name:
+        print("No package name specified")
+        return 1
+    
+    # Create output directory
+    os.makedirs(output_dir, exist_ok=True)
+    
+    # Set up apt sources
+    setup_apt_sources(tree, suite, mirror, components)
+    
+    # Update package lists
+    if not update_package_lists(tree):
+        return 1
+    
+    # Download source package
+    if not download_source_package(package_name, suite, mirror, output_dir):
+        return 1
+    
+    # Write source info
+    source_info = {
+        "package": package_name,
+        "suite": suite,
+        "mirror": mirror,
+        "components": components,
+        "output_dir": output_dir
+    }
+    
+    info_file = os.path.join(output_dir, "debian-source.json")
+    with open(info_file, "w") as f:
+        json.dump(source_info, f, indent=2)
+    
+    print(f"Source package {package_name} downloaded successfully")
+    return 0
+
+
+if __name__ == '__main__':
+    args = osbuild.api.arguments()
+    r = main(args["tree"], args["options"])
+    sys.exit(r)
diff --git a/stages/org.osbuild.debian.source.meta.json b/stages/org.osbuild.debian.source.meta.json
new file mode 100644
index 00000000..a01e3334
--- /dev/null
+++ b/stages/org.osbuild.debian.source.meta.json
@@ -0,0 +1,57 @@
+{
+  "name": "org.osbuild.debian.source",
+  "version": "1",
+  "description": "Download and manage Debian source packages",
+  "options": {
+    "type": "object",
+    "properties": {
+      "package": {
+        "type": "string",
+        "description": "Name of the Debian source package to download"
+      },
+      "suite": {
+        "type": "string",
+        "default": "bookworm",
+        "description": "Debian suite for the package"
+      },
+      "mirror": {
+        "type": "string",
+        "default": "http://deb.debian.org/debian",
+        "description": "Debian mirror for package sources"
+      },
+      "components": {
+        "type": "array",
+        "items": {
+          "type": "string"
+        },
+        "default": ["main", "contrib", "non-free"],
+        "description": "Debian repository components to use"
+      },
+      "output_dir": {
+        "type": "string",
+        "default": ".",
+        "description": "Directory for downloaded source packages"
+      }
+    },
+    "required": ["package"]
+  },
+  "inputs": {
+    "type": "object",
+    "additionalProperties": false
+  },
+  "devices": {
+    "type": "object",
+    "additionalProperties": false
+  },
+  "mounts": {
+    "type": "object",
+    "additionalProperties": false
+  },
+  "capabilities": {
+    "type": "array",
+    "items": {
+      "type": "string"
+    },
+    "default": ["CAP_CHOWN", "CAP_DAC_OVERRIDE", "CAP_FOWNER", "CAP_FSETID", "CAP_MKNOD", "CAP_SETGID", "CAP_SETUID"]
+  }
+}
diff --git a/stages/org.osbuild.sbuild b/stages/org.osbuild.sbuild
new file mode 100644
index 00000000..502d1102
--- /dev/null
+++ b/stages/org.osbuild.sbuild
@@ -0,0 +1,144 @@
+#!/usr/bin/python3
+import os
+import sys
+import subprocess
+import tempfile
+import shutil
+import json
+
+import osbuild.api
+
+
+def run_sbuild_command(cmd, cwd=None, env=None):
+    """Run sbuild command and return result"""
+    if env is None:
+        env = {}
+    
+    result = subprocess.run(cmd, cwd=cwd, env=env, capture_output=True, text=True)
+    
+    if result.returncode != 0:
+        print(f"Error running sbuild command: {' '.join(cmd)}")
+        print(f"stdout: {result.stdout}")
+        print(f"stderr: {result.stderr}")
+        return False, result.stderr
+    
+    return True, result.stdout
+
+
+def create_sbuild_chroot(tree, suite, arch, mirror):
+    """Create sbuild chroot for building packages"""
+    
+    chroot_name = f"{suite}-{arch}-sbuild"
+    
+    # Create sbuild chroot
+    cmd = ["sbuild-createchroot", "--arch", arch, suite, chroot_name, mirror]
+    
+    print(f"Creating sbuild chroot: {' '.join(cmd)}")
+    
+    success, output = run_sbuild_command(cmd)
+    if not success:
+        return False, None
+    
+    print(f"Created sbuild chroot: {chroot_name}")
+    return True, chroot_name
+
+
+def build_package_with_sbuild(chroot_name, source_dir, output_dir):
+    """Build package using sbuild"""
+    
+    # Change to source directory
+    os.chdir(source_dir)
+    
+    # Run sbuild
+    cmd = ["sbuild", "--arch", "amd64", "--dist", chroot_name.split("-")[0], "."]
+    
+    print(f"Building package with sbuild: {' '.join(cmd)}")
+    
+    success, output = run_sbuild_command(cmd)
+    if not success:
+        return False
+    
+    # Copy built packages to output directory
+    for file in os.listdir("."):
+        if file.endswith(".deb") or file.endswith(".dsc") or file.endswith(".tar.gz"):
+            src = os.path.join(source_dir, file)
+            dst = os.path.join(output_dir, file)
+            shutil.copy2(src, dst)
+            print(f"Copied: {file}")
+    
+    return True
+
+
+def setup_sbuild_config(tree, chroot_name):
+    """Set up sbuild configuration for the chroot"""
+    
+    sbuild_conf_dir = f"{tree}/etc/sbuild"
+    os.makedirs(sbuild_conf_dir, exist_ok=True)
+    
+    # Create sbuild configuration
+    sbuild_conf = f"""# sbuild configuration for {chroot_name}
+$build_environment = 'chroot';
+$build_arch_all = 1;
+$build_source = 1;
+$build_binary = 1;
+$build_arch_any = 1;
+$build_indep = 1;
+$build_dep = 1;
+$build_conf = 1;
+$build_progress = 1;
+$build_verbose = 1;
+"""
+    
+    conf_file = os.path.join(sbuild_conf_dir, "sbuild.conf")
+    with open(conf_file, "w") as f:
+        f.write(sbuild_conf)
+    
+    print(f"Created sbuild configuration: {conf_file}")
+
+
+def main(tree, options):
+    """Main function for sbuild stage"""
+    
+    # Get options
+    suite = options.get("suite", "bookworm")
+    arch = options.get("arch", "amd64")
+    mirror = options.get("mirror", "http://deb.debian.org/debian")
+    source_dir = options.get("source_dir", ".")
+    output_dir = options.get("output_dir", ".")
+    
+    # Create output directory
+    os.makedirs(output_dir, exist_ok=True)
+    
+    # Create sbuild chroot
+    success, chroot_name = create_sbuild_chroot(tree, suite, arch, mirror)
+    if not success:
+        return 1
+    
+    # Set up sbuild configuration
+    setup_sbuild_config(tree, chroot_name)
+    
+    # Build package
+    if not build_package_with_sbuild(chroot_name, source_dir, output_dir):
+        return 1
+    
+    # Write build info
+    build_info = {
+        "chroot": chroot_name,
+        "suite": suite,
+        "arch": arch,
+        "mirror": mirror,
+        "output_dir": output_dir
+    }
+    
+    info_file = os.path.join(output_dir, "sbuild-build.json")
+    with open(info_file, "w") as f:
+        json.dump(build_info, f, indent=2)
+    
+    print("sbuild package building completed successfully")
+    return 0
+
+
+if __name__ == '__main__':
+    args = osbuild.api.arguments()
+    r = main(args["tree"], args["options"])
+    sys.exit(r)
diff --git a/stages/org.osbuild.sbuild.meta.json b/stages/org.osbuild.sbuild.meta.json
new file mode 100644
index 00000000..ec59d0d9
--- /dev/null
+++ b/stages/org.osbuild.sbuild.meta.json
@@ -0,0 +1,54 @@
+{
+  "name": "org.osbuild.sbuild",
+  "version": "1",
+  "description": "Build Debian packages using sbuild chroot environments",
+  "options": {
+    "type": "object",
+    "properties": {
+      "suite": {
+        "type": "string",
+        "default": "bookworm",
+        "description": "Debian suite for the build environment"
+      },
+      "arch": {
+        "type": "string",
+        "default": "amd64",
+        "description": "Target architecture for building"
+      },
+      "mirror": {
+        "type": "string",
+        "default": "http://deb.debian.org/debian",
+        "description": "Debian mirror for chroot creation"
+      },
+      "source_dir": {
+        "type": "string",
+        "default": ".",
+        "description": "Directory containing package source"
+      },
+      "output_dir": {
+        "type": "string",
+        "default": ".",
+        "description": "Directory for built packages"
+      }
+    }
+  },
+  "inputs": {
+    "type": "object",
+    "additionalProperties": false
+  },
+  "devices": {
+    "type": "object",
+    "additionalProperties": false
+  },
+  "mounts": {
+    "type": "object",
+    "additionalProperties": false
+  },
+  "capabilities": {
+    "type": "array",
+    "items": {
+      "type": "string"
+    },
+    "default": ["CAP_CHOWN", "CAP_DAC_OVERRIDE", "CAP_FOWNER", "CAP_FSETID", "CAP_MKNOD", "CAP_SETGID", "CAP_SETUID", "CAP_SYS_CHROOT"]
+  }
+}