diff --git a/openpype/hosts/nuke/__init__.py b/openpype/hosts/nuke/__init__.py
index e69de29bb2..901ee7c54c 100644
--- a/openpype/hosts/nuke/__init__.py
+++ b/openpype/hosts/nuke/__init__.py
@@ -0,0 +1,42 @@
+import os
+import platform
+
+
+def add_implementation_envs(env):
+    # Add requirements to NUKE_PATH
+    pype_root = os.environ["OPENPYPE_REPOS_ROOT"]
+    new_nuke_paths = [
+        os.path.join(pype_root, "openpype", "hosts", "maya", "startup"),
+        os.path.join(pype_root, "repos", "avalon-core", "setup", "maya"),
+        os.path.join(pype_root, "tools", "mayalookassigner")
+    ]
+    old_nuke_path = env.get("NUKE_PATH") or ""
+    for path in old_nuke_path.split(os.pathsep):
+        if not path or not os.path.exists(path):
+            continue
+
+        norm_path = os.path.normpath(path)
+        if norm_path not in new_nuke_paths:
+            new_nuke_paths.append(norm_path)
+
+    env["NUKE_PATH"] = os.pathsep.join(new_nuke_paths)
+
+    # Try to add QuickTime to PATH
+    quick_time_path = "C:/Program Files (x86)/QuickTime/QTSystem"
+    if platform.system() == "windows" and os.path.exists(quick_time_path):
+        path_value = env.get("PATH") or ""
+        path_paths = [
+            path
+            for path in path_value.split(os.pathsep)
+            if path
+        ]
+        path_paths.append(quick_time_path)
+        env["PATH"] = os.pathsep.join(path_paths)
+
+    # Set default values if are not already set via settings
+    defaults = {
+        "LOGLEVEL": "DEBUG"
+    }
+    for key, value in defaults.items():
+        if not env.get(key):
+            env[key] = value
diff --git a/openpype/settings/defaults/system_settings/applications.json b/openpype/settings/defaults/system_settings/applications.json
index 2904530cad..30c697ddeb 100644
--- a/openpype/settings/defaults/system_settings/applications.json
+++ b/openpype/settings/defaults/system_settings/applications.json
@@ -97,15 +97,7 @@
         "icon": "{}/app_icons/nuke.png",
         "host_name": "nuke",
         "environment": {
-            "NUKE_PATH": [
-                "{OPENPYPE_REPOS_ROOT}/repos/avalon-core/setup/nuke/nuke_path",
-                "{OPENPYPE_REPOS_ROOT}/openpype/hosts/nuke/startup",
-                "{OPENPYPE_STUDIO_PLUGINS}/nuke"
-            ],
-            "PATH": {
-                "windows": "C:/Program Files (x86)/QuickTime/QTSystem/;{PATH}"
-            },
-            "LOGLEVEL": "DEBUG"
+            "NUKE_PATH": "{OPENPYPE_STUDIO_PLUGINS}/nuke"
         },
         "variants": {
             "13-0": {