diff --git a/aws/ec2-redash/variables.tf b/aws/ec2-redash/variables.tf
index b0f76d3f0..fd81a17ef 100644
--- a/aws/ec2-redash/variables.tf
+++ b/aws/ec2-redash/variables.tf
@@ -1,2 +1,2 @@
 variable "aws_default_region" { default = "us-east-1"}
-variable "instance_type" { default = "t2.small"}
+variable "instance_type" { default = "t2.micro"}
diff --git a/misc/cost-estimation/env0.yml b/misc/cost-estimation/env0.yml
deleted file mode 100644
index 3cf8bbf2b..000000000
--- a/misc/cost-estimation/env0.yml
+++ /dev/null
@@ -1,13 +0,0 @@
-version: 1
-
-deploy:
-  steps:
-    setupVariables:
-      after:
-        - curl -s -L https://github.com/infracost/infracost/releases/latest/download/infracost-linux-amd64.tar.gz | tar xz
-        - mv infracost-linux-amd64 /opt/infracost
-    terraformPlan:
-      after:
-        - terraform show -json .tf-plan > plan.json
-        - infracost breakdown --path plan.json
-        - infracost diff --path plan.json
diff --git a/misc/depends_on/main.tf b/misc/depends_on/main.tf
new file mode 100644
index 000000000..2b69eb8c1
--- /dev/null
+++ b/misc/depends_on/main.tf
@@ -0,0 +1,6 @@
+resource "null_resource" "null1" {
+  depends_on = [null_resource.null2]
+}
+
+resource "null_resource" "null2" {
+}
diff --git a/misc/for_each/main.tf b/misc/for_each/main.tf
new file mode 100644
index 000000000..97f401189
--- /dev/null
+++ b/misc/for_each/main.tf
@@ -0,0 +1,7 @@
+resource "null_resource" "null" {
+  for_each = toSet(["null1", "null2"])
+  
+  triggers = {
+    name = each.key
+  }
+}
diff --git a/misc/null-resource/main.tf b/misc/null-resource/main.tf
index 61aef5546..60eec0196 100644
--- a/misc/null-resource/main.tf
+++ b/misc/null-resource/main.tf
@@ -1,2 +1,11 @@
+variable "instance_type" { default = "t2.small"}
+
 resource "null_resource" "null" {
+      triggers = {
+    null_instance_ids = var.instance_type
+  }
+}
+resource "null_resource" "null4" {
+}
+resource "null_resource" "null2" {
 }
diff --git a/misc/null-resource/variables.tfvars b/misc/null-resource/variables.tfvars
new file mode 100644
index 000000000..80a533bef
--- /dev/null
+++ b/misc/null-resource/variables.tfvars
@@ -0,0 +1 @@
+instance_type = "foo_type"
diff --git a/qa/components/a.tf b/qa/components/a.tf
new file mode 100644
index 000000000..61aef5546
--- /dev/null
+++ b/qa/components/a.tf
@@ -0,0 +1,2 @@
+resource "null_resource" "null" {
+}
diff --git a/qa/components/a/main.tf b/qa/components/a/main.tf
new file mode 100644
index 000000000..14025ba49
--- /dev/null
+++ b/qa/components/a/main.tf
@@ -0,0 +1,6 @@
+resource "null_resource" "null" {
+}
+resource "null_resource" "null2" {
+}
+resource "null_resource" "null3" {
+}
diff --git a/qa/components/b/b.tf b/qa/components/b/b.tf
new file mode 100644
index 000000000..61aef5546
--- /dev/null
+++ b/qa/components/b/b.tf
@@ -0,0 +1,2 @@
+resource "null_resource" "null" {
+}
diff --git a/qa/components/common/common.tf b/qa/components/common/common.tf
new file mode 100644
index 000000000..baa3e6f6b
--- /dev/null
+++ b/qa/components/common/common.tf
@@ -0,0 +1,12 @@
+resource "null_resource" "null" {
+}
+
+resource "null_resource" "null2" {
+}
+
+
+
+
+
+
+