diff --git a/rust2rpm/__main__.py b/rust2rpm/__main__.py
index b22de61..cbb3a22 100644
--- a/rust2rpm/__main__.py
+++ b/rust2rpm/__main__.py
@@ -72,10 +72,21 @@ def detect_editor():
     return editor
 
 def detect_packager():
+    # If we're forcing the fallback...
+    if os.getenv("RUST2RPM_NO_DETECT_PACKAGER") is not None:
+        return None
+
+    # If we're supplying packager identity through an environment variable...
+    packager_identity = os.getenv("RUST2RPM_PACKAGER")
+    if packager_identity is not None:
+        return packager_identity
+
+    # If we're detecting packager identity through rpmdev-packager...
     rpmdev_packager = shutil.which("rpmdev-packager")
     if rpmdev_packager is not None:
         return subprocess.check_output(rpmdev_packager, universal_newlines=True).strip()
 
+    # If we're detecting packager identity through git configuration...
     git = shutil.which("git")
     if git is not None:
         name = subprocess.check_output([git, "config", "user.name"], universal_newlines=True).strip()