diff --git a/cdk/domino_cdk/config/base.py b/cdk/domino_cdk/config/base.py
index fb124b21..266cb4b2 100644
--- a/cdk/domino_cdk/config/base.py
+++ b/cdk/domino_cdk/config/base.py
@@ -55,7 +55,7 @@ def set_tags(self, tags: int):
     @staticmethod
     def from_0_0_0(c: dict):
         s3 = c.pop("s3", None)
-        if s3 is not None:
+        if s3:
             s3 = S3.from_0_0_0(s3)
 
         route53 = c.pop("route53", None)
@@ -63,11 +63,11 @@ def from_0_0_0(c: dict):
             route53 = Route53.from_0_0_0(route53)
 
         efs = c.pop("efs", None)
-        if efs is not None:
+        if efs:
             efs = EFS.from_0_0_0(efs)
 
         install = c.pop("install", None)
-        if install is not None:
+        if install:
             install = Install.from_0_0_0(install)
 
         return from_loader(
@@ -92,19 +92,19 @@ def from_0_0_0(c: dict):
     @staticmethod
     def from_0_0_1(c: dict):
         s3 = c.pop("s3", None)
-        if s3 is not None:
+        if s3:
             s3 = S3.from_0_0_0(s3)
 
         route53 = c.pop("route53", None)
-        if route53 is not None:
+        if route53:
             route53 = Route53.from_0_0_0(route53)
 
         efs = c.pop("efs", None)
-        if efs is not None:
+        if efs:
             efs = EFS.from_0_0_0(efs)
 
         install = c.pop("install", None)
-        if install is not None:
+        if install:
             install = Install.from_0_0_1(install)
 
         return from_loader(
diff --git a/cdk/domino_cdk/domino_stack.py b/cdk/domino_cdk/domino_stack.py
index 33f26bbb..40b60935 100644
--- a/cdk/domino_cdk/domino_stack.py
+++ b/cdk/domino_cdk/domino_stack.py
@@ -40,7 +40,7 @@ def __init__(
         for k, v in self.cfg.tags.items():
             cdk.Tags.of(self).add(str(k), str(v))
 
-        if self.cfg.s3 is not None:
+        if self.cfg.s3:
             self.s3_stack = DominoS3Provisioner(self, "S3Stack", self.name, self.cfg.s3, nest)
             self.monitoring_bucket = self.s3_stack.monitoring_bucket
 
@@ -56,18 +56,16 @@ def __init__(
             self.vpc_stack.vpc,
             self.vpc_stack.private_subnet_name,
             self.vpc_stack.bastion_sg,
-            self.cfg.route53.zone_ids if self.cfg.route53 is not None else [],
+            self.cfg.route53.zone_ids if self.cfg.route53 else [],
             nest,
             # Do not pass list of buckets to Eks provisioner if we are not using S3 access per node
-            self.s3_stack.buckets
-            if self.s3_stack is not None and cfg.create_iam_roles_for_service_accounts is False
-            else [],
+            self.s3_stack.buckets if self.s3_stack and cfg.create_iam_roles_for_service_accounts is False else [],
         )
 
         if cfg.create_iam_roles_for_service_accounts:
             DominoEksK8sIamRolesProvisioner(self).provision(self.name, self.eks_stack.cluster, self.s3_stack.buckets)
 
-        if self.cfg.efs is not None:
+        if self.cfg.efs:
             self.efs_stack = DominoEfsProvisioner(
                 self,
                 "EfsStack",
@@ -110,7 +108,7 @@ def __init__(
         self.generate_outputs()
 
     def generate_outputs(self):
-        if self.efs_stack is not None:
+        if self.efs_stack:
             efs_fs_ap_id = f"{self.efs_stack.efs.file_system_id}::{self.efs_stack.efs_access_point.access_point_id}"
             cdk.CfnOutput(
                 self,
@@ -118,7 +116,7 @@ def generate_outputs(self):
                 value=efs_fs_ap_id,
             )
 
-        if self.cfg.route53 is not None:
+        if self.cfg.route53:
             r53_zone_ids = self.cfg.route53.zone_ids
             r53_owner_id = f"{self.name}CDK"
             cdk.CfnOutput(
@@ -132,7 +130,7 @@ def generate_outputs(self):
                 value=r53_owner_id,
             )
 
-        if self.cfg.install is not None:
+        if self.cfg.install:
             agent_cfg = generate_install_config(
                 name=self.name,
                 install=self.cfg.install,