diff --git a/dangerzone/container.py b/dangerzone/container.py
index 20717bf..487578e 100644
--- a/dangerzone/container.py
+++ b/dangerzone/container.py
@@ -11,7 +11,7 @@ if platform.system() == "Darwin":
 elif platform.system() == "Windows":
     container_runtime = shutil.which("docker.exe")
 else:
-    container_runtime = shutil.which("docker")
+    container_runtime = shutil.which("podman")
 
 # Define startupinfo for subprocesses
 if platform.system() == "Windows":
@@ -51,7 +51,7 @@ def container_main():
 
 
 @container_main.command()
-@click.option("--container-name", default="flmcode/dangerzone")
+@click.option("--container-name", default="docker.io/flmcode/dangerzone")
 def ls(container_name):
     """docker image ls [container_name]"""
     sys.exit(exec_container(["image", "ls", container_name]))
@@ -60,37 +60,36 @@ def ls(container_name):
 @container_main.command()
 def pull():
     """docker pull flmcode/dangerzone"""
-    sys.exit(exec_container(["pull", "flmcode/dangerzone"]))
+    sys.exit(exec_container(["pull", "docker.io/flmcode/dangerzone"]))
 
 
 @container_main.command()
 @click.option("--document-filename", required=True)
 @click.option("--pixel-dir", required=True)
-@click.option("--container-name", default="flmcode/dangerzone")
+@click.option("--container-name", default="docker.io/flmcode/dangerzone")
 def documenttopixels(document_filename, pixel_dir, container_name):
     """docker run --network none -v [document_filename]:/tmp/input_file -v [pixel_dir]:/dangerzone [container_name] document-to-pixels"""
-    sys.exit(
-        exec_container(
-            [
-                "run",
-                "--network",
-                "none",
-                "--security-opt=no-new-privileges:true",
-                "-v",
-                f"{document_filename}:/tmp/input_file",
-                "-v",
-                f"{pixel_dir}:/dangerzone",
-                container_name,
-                "document-to-pixels",
-            ]
-        )
-    )
+    args = ["run", "--network", "none"]
+
+    # Linux uses podman instead of docker, and only docker uses --security-opt
+    if platform.system() != "Linux":
+        args += ["--security-opt=no-new-privileges:true"]
+
+    args += [
+        "-v",
+        f"{document_filename}:/tmp/input_file",
+        "-v",
+        f"{pixel_dir}:/dangerzone",
+        container_name,
+        "document-to-pixels",
+    ]
+    sys.exit(exec_container(args))
 
 
 @container_main.command()
 @click.option("--pixel-dir", required=True)
 @click.option("--safe-dir", required=True)
-@click.option("--container-name", default="flmcode/dangerzone")
+@click.option("--container-name", default="docker.io/flmcode/dangerzone")
 @click.option("--ocr", required=True)
 @click.option("--ocr-lang", required=True)
 def pixelstopdf(pixel_dir, safe_dir, container_name, ocr, ocr_lang):
diff --git a/dangerzone/global_common.py b/dangerzone/global_common.py
index ba473bc..842957e 100644
--- a/dangerzone/global_common.py
+++ b/dangerzone/global_common.py
@@ -384,7 +384,7 @@ class GlobalCommon(object):
         if self.custom_container:
             return self.custom_container
         else:
-            return "flmcode/dangerzone"
+            return "docker.io/flmcode/dangerzone"
 
     def get_resource_path(self, filename):
         if getattr(sys, "dangerzone_dev", False):
@@ -439,18 +439,11 @@ class GlobalCommon(object):
                 return "/usr/bin/dangerzone-container"
 
     def exec_dangerzone_container(self, args):
-        # Prefix the args with the retainer runtime, and in the case linux when the user isn't in the docker group, pkexec
-        if platform.system() == "Linux":
-            if self.settings.get("linux_prefers_typing_password"):
-                args = ["/usr/bin/pkexec", self.dz_container_path] + args
-            else:
-                args = [self.dz_container_path] + args
-        else:
-            args = [self.dz_container_path] + args
-
-        # Execute dangerzone-container
+        args = [self.dz_container_path] + args
         args_str = " ".join(pipes.quote(s) for s in args)
         print(Fore.YELLOW + "> " + Fore.CYAN + args_str)
+
+        # Execute dangerzone-container
         return subprocess.Popen(
             args,
             startupinfo=self.get_subprocess_startupinfo(),