diff --git a/example/.tflint.hcl b/example/.tflint.hcl
new file mode 100644
index 0000000..e927895
--- /dev/null
+++ b/example/.tflint.hcl
@@ -0,0 +1,16 @@
+plugin "terraform" {
+  enabled = true
+  preset  = "recommended"
+}
+
+rule "terraform_unused_declarations" {
+  enabled = true
+}
+
+# rule "terraform_documented_outputs" {
+#  enabled = true
+# }
+
+rule "terraform_documented_variables" {
+  enabled = true
+}
diff --git a/example/main.tf b/example/main.tf
new file mode 100644
index 0000000..1f66eb9
--- /dev/null
+++ b/example/main.tf
@@ -0,0 +1,130 @@
+resource "stackit_network_area" "project_sna" {
+  organization_id  = var.organization_id
+  name             = var.SNA_name
+  network_ranges   = var.SNA_network_ranges
+  transfer_network = var.SNA_transfer_network
+}
+
+module "projects" {
+  source = "../project"
+
+  projects        = var.Projects_map
+  organization_id = var.organization_id
+  sna_id          = stackit_network_area.project_sna.network_area_id
+  labels          = var.labels != null ? var.labels : {}
+}
+
+locals {
+  project_ids = { for k, v in module.projects.created_projects : k => v.project_id }
+}
+
+module "stackit_ske_cluster" {
+  source = "../ske"
+  for_each = var.ske_clusters
+
+  project_id = local.project_ids[each.value.project_key]
+  name       = each.value.name
+  node_pools = each.value.node_pools
+  kubernetes_version_min = lookup(each.value, "kubernetes_version_min", null)
+  hibernations           = lookup(each.value, "hibernations", null)
+  maintenance            = lookup(each.value, "maintenance", null)
+  extensions             = lookup(each.value, "extensions", null)
+  default_region         = var.default_region
+}
+
+module "security_groups" {
+  source = "../security-group"
+
+  for_each = var.security_groups
+
+  project_id  = local.project_ids[each.value.project_key]
+  name        = each.value.name
+  description = each.value.description != null ? each.value.description : ""
+  rules       = each.value.rules
+}
+
+locals {
+  security_group_ids_by_name = {
+    for key, m in module.security_groups :
+    m.name => m.security_group_id
+  }
+}
+
+module "net" {
+  depends_on = [module.security_groups]
+  source     = "../network"
+
+  for_each = var.networks
+
+  project_id = local.project_ids[each.value.project_key]
+  name       = each.value.name
+
+  ipv4_gateway       = each.value.ipv4_gateway
+  ipv4_nameservers   = each.value.ipv4_nameservers
+  ipv4_prefix        = each.value.ipv4_prefix
+  ipv4_prefix_length = each.value.ipv4_prefix_length
+
+  ipv6_gateway       = each.value.ipv6_gateway
+  ipv6_nameservers   = each.value.ipv6_nameservers
+  ipv6_prefix        = each.value.ipv6_prefix
+  ipv6_prefix_length = each.value.ipv6_prefix_length
+
+  no_ipv4_gateway = each.value.no_ipv4_gateway
+  no_ipv6_gateway = each.value.no_ipv6_gateway
+  routed          = each.value.routed
+  labels          = each.value.labels
+
+  nics                       = each.value.nics
+  security_group_ids_by_name = local.security_group_ids_by_name
+}
+
+module "postgres" {
+  source = "../postgres"
+
+  for_each = var.postgres_instances
+
+  project_id      = local.project_ids[each.value.project_key]
+  name            = each.value.name
+  ver             = each.value.version
+  flavor          = each.value.flavor
+  storage         = each.value.storage
+  replicas        = each.value.replicas
+  acl             = each.value.acl
+  backup_schedule = each.value.backup_schedule
+  users           = each.value.users
+  databases       = each.value.databases
+}
+
+module "observability" {
+  source   = "../observability"
+  for_each = var.observability_instances
+
+  project_id = local.project_ids[each.value.project_key]
+
+  name      = each.value.name
+  plan_name = each.value.plan_name
+
+  acl                                    = each.value.acl
+  metrics_retention_days                 = each.value.metrics_retention_days
+  metrics_retention_days_5m_downsampling = each.value.metrics_retention_days_5m_downsampling
+  metrics_retention_days_1h_downsampling = each.value.metrics_retention_days_1h_downsampling
+  alert_config                           = each.value.alert_config
+  parameters                             = each.value.parameters
+
+  # Credentials
+  create_credentials = each.value.create_credentials
+  credentials_count  = each.value.credentials_count
+
+  alertgroups = each.value.alertgroups
+
+  logalertgroups = each.value.logalertgroups
+
+  scrapeconfigs = each.value.scrapeconfigs
+}
+
+output "obs_url" {
+  value = {
+    for key, instance in module.observability :
+    key => instance.observability_urls
+  }
+}
diff --git a/example/providers.tf b/example/providers.tf
new file mode 100644
index 0000000..5873620
--- /dev/null
+++ b/example/providers.tf
@@ -0,0 +1,16 @@
+terraform {
+  required_version = ">= 1.9.0"
+  required_providers {
+    stackit = {
+      source  = "stackitcloud/stackit"
+      version = "0.56.0"
+    }
+  }
+}
+
+provider "stackit" {
+  default_region           = var.region
+  service_account_token    = var.service_account_token != null ? var.service_account_token : null
+  service_account_key_path = var.service_account_key_path != null ? var.service_account_key_path : null
+  enable_beta_resources    = true
+}
diff --git a/example/terraform.tfvars b/example/terraform.tfvars
new file mode 100644
index 0000000..9b09f84
--- /dev/null
+++ b/example/terraform.tfvars
@@ -0,0 +1,295 @@
+organization_id = "03a34540-3c1a-4794-b2c6-7111ecf824ef"
+
+Projects_map = {
+  "projekt-alpha" = {
+    name        = "tf_modules_test_6_jh"
+    owner_email = "maximilian.schlenz@stackit.cloud"
+  },
+  "projekt-beta" = {
+    name        = "tf_modules_test_7_jh"
+    owner_email = "maximilian.schlenz@stackit.cloud"
+  }
+}
+
+SNA_name = "sna-jh"
+
+SNA_network_ranges = [
+  { prefix = "192.168.10.0/24" }
+]
+
+SNA_transfer_network = "172.16.0.0/24"
+
+security_groups = {
+  ssh_ingress_group = {
+    name        = "ssh-ingress-group"
+    project_key = "projekt-alpha"
+    description = "ALLOW SSH ingress"
+    rules = [
+      { description = "SSH RULE 1"
+        direction   = "ingress"
+        ether_type  = "IPv4"
+        ip_range    = "0.0.0.0/0"
+        protocol = {
+          name = "tcp"
+        }
+        port_range = {
+          min = 22
+          max = 22
+        }
+      },
+    ]
+  },
+
+  web_traffic_group = {
+    name        = "web-traffic-group"
+    project_key = "projekt-alpha"
+    description = "ALLOW WEB TRAFFIC ingress"
+    rules = [
+      { description = "ALLOW ALL 80"
+        direction   = "ingress"
+        ether_type  = "IPv4"
+        ip_range    = "0.0.0.0/0"
+        protocol = {
+          name = "tcp"
+        }
+        port_range = {
+          min = 80
+          max = 80
+        }
+      },
+      { description = "ALLOW ALL 443"
+        direction   = "ingress"
+        ether_type  = "IPv4"
+        ip_range    = "0.0.0.0/0"
+        protocol = {
+          name = "tcp"
+        }
+        port_range = {
+          min = 443
+          max = 443
+        }
+      },
+    ]
+  },
+}
+
+postgres_instances = {
+  dev = {
+    name    = "pg-test-instance"
+    project_key = "projekt-alpha"
+    version = 17
+    flavor = {
+      cpu = 2,
+      ram = 4
+    }
+    storage = {
+      class = "premium-perf6-stackit",
+      size  = 20
+    }
+    replicas        = 1
+    acl             = ["0.0.0.0/0"]
+    backup_schedule = "00 00 * * *"
+
+    users = [
+      { username = "adminusr",
+        roles    = ["login", "createdb"]
+      },
+      { username = "testusr",
+        roles    = ["login"]
+      }
+    ]
+
+    databases = [
+      {
+        name  = "testdb",
+        owner = "admin"
+      }
+    ]
+  }
+}
+
+networks = {
+  wan_network = {
+    name               = "wan_network"
+    project_key        = "projekt-beta"
+    ipv4_nameservers   = ["1.1.1.1", "8.8.8.8"]
+    ipv4_prefix_length = 29
+    ipv4_prefix        = "192.168.10.248/29"
+    routed             = true
+  }
+}
+
+observability_instances = {
+  test = {
+    # Required
+    name      = "test-observability"
+    project_key = "projekt-alpha"
+    plan_name = "Observability-Large-EU01"
+
+    # Optional instance settings
+    acl                                    = ["192.168.100.10/32", "203.0.113.5/32"]
+    metrics_retention_days                 = 30
+    metrics_retention_days_5m_downsampling = 10
+    metrics_retention_days_1h_downsampling = 5
+    # parameters = {
+    #   "custom_param" = "value"
+    # }
+
+    # Credentials
+    create_credentials = true
+    credentials_count  = 2
+
+    # alert‑groups
+    alertgroups = {
+      test_group = {
+        name     = "example-alert-group"
+        interval = "60s"
+        rules = [
+          {
+            alert      = "example-alert-name"
+            expression = "kube_node_status_condition{condition=\"Ready\", status=\"false\"} > 0"
+            for        = "60s"
+            labels = {
+              severity = "critical"
+            }
+            annotations = {
+              summary     = "example summary"
+              description = "example description"
+            }
+          },
+          {
+            alert      = "example-alert-name-2"
+            expression = "kube_node_status_condition{condition=\"Ready\", status=\"false\"} > 0"
+            for        = "1m"
+            labels = {
+              severity = "critical"
+            }
+            annotations = {
+              summary     = "example summary"
+              description = "example description"
+            }
+          },
+        ]
+      }
+    }
+
+    # log‑alert‑groups
+    logalertgroups = {
+      example_log = {
+        name     = "example-log-alert-group"
+        interval = "60m"
+        rules = [
+          {
+            alert      = "example-log-alert-name"
+            expression = "sum(rate({namespace=\"example\", pod=\"logger\"} |= \"Simulated error message\" [1m])) > 0"
+            for        = "60s"
+            labels = {
+              severity = "critical"
+            }
+            annotations = {
+              summary     = "example summary"
+              description = "example description"
+            }
+          },
+          {
+            alert      = "example-log-alert-name-2"
+            expression = "sum(rate({namespace=\"example\", pod=\"logger\"} |= \"Another error message\" [1m])) > 0"
+            for        = "60s"
+            labels = {
+              severity = "critical"
+            }
+            annotations = {
+              summary     = "example summary"
+              description = "example description"
+            }
+          },
+        ]
+      }
+    }
+
+    # scrapeconfigs
+    scrapeconfigs = {
+      example_job = {
+        name         = "example-job"
+        metrics_path = "/my-metrics"
+        saml2 = {
+          enable_url_parameters = true
+        }
+        targets = [
+          {
+            urls = ["url1", "urls2"]
+            labels = {
+              "url1" = "dev"
+            }
+          }
+        ]
+      }
+    }
+  }
+}
+
+ske_clusters = {
+  /*
+  "prod-cluster" = {
+    name                   = "clusterprod" 
+    project_key            = "projekt-alpha"
+    kubernetes_version_min = "1.32.5"
+
+    node_pools = [
+      {
+        name               = "np"
+        machine_type       = "c1.2"
+        availability_zones = ["eu01-3", "eu01-1"]
+        minimum            = 2
+        maximum            = 3
+        volume_type        = "storage_premium_perf1"
+        volume_size        = 64
+        taints = [{
+          effect = "NoSchedule"
+          key    = "app"
+          value  = "database"
+        }]
+      }
+    ]
+
+    hibernations = [
+      {
+        start    = "00 18 * * 1-5" # Mo-Fr um 18:00 Uhr
+        end      = "00 08 * * 1-5" # Mo-Fr um 08:00 Uhr
+        timezone = "Europe/Berlin"
+      }
+    ]
+
+    maintenance = {
+      enable_kubernetes_version_updates  = true
+      enable_machine_image_version_updates = true
+      start                              = "01:00:00Z"
+      end                                = "03:00:00Z"
+    }
+
+    extensions = {
+      acl = {
+        enabled       = true
+        allowed_cidrs = ["0.0.0.0/0"]
+      }
+    }
+  },
+  */
+  "dev-cluster" = {
+    name        = "cluster"
+    kubernetes_version_min = "1.32.5"
+    project_key = "projekt-alpha"
+
+    node_pools = [
+      {
+        name               = "np"
+        machine_type       = "g1.4"
+        availability_zones = ["eu01-2"]
+        minimum            = 1
+        maximum            = 2
+        volume_size        = 21 
+      }
+    ]
+  }
+  
+}
diff --git a/example/variables.tf b/example/variables.tf
new file mode 100644
index 0000000..dff5a62
--- /dev/null
+++ b/example/variables.tf
@@ -0,0 +1,313 @@
+variable "region" {
+  description = "Provider region for STACKIT Cloud"
+  type        = string
+  default     = "eu01"
+}
+
+variable "service_account_token" {
+  description = "Service account token for authentication"
+  sensitive   = true
+  type        = string
+  default     = null
+}
+
+# -----------------------------------------------------------------------------#
+# SNA & Projects
+# -----------------------------------------------------------------------------#
+
+variable "organization_id" {
+  description = "STACKIT organization container ID"
+  type        = string
+}
+
+variable "service_account_key_path" {
+  description = "Path to service account JSON key"
+  type        = string
+  default     = "/Users/schlenz/.stackit/sa.json"
+}
+
+variable "default_region" {
+  description = "Default region fallback for created resources"
+  type        = string
+  default     = "eu01"
+}
+
+variable "SNA_name" {
+  description = "Name of the Service Network Area to create"
+  type        = string
+}
+
+variable "SNA_network_ranges" {
+  description = "CIDR list for the Service Network Area"
+  type        = list(object({ prefix = string }))
+}
+
+variable "SNA_transfer_network" {
+  description = "Transfer network CIDR for the SNA"
+  type        = string
+}
+
+variable "Projects_map" {
+  description = "Map of STACKIT projects to create"
+  type = map(object({
+    name        = string
+    owner_email = string
+  }))
+}
+
+variable "labels" {
+  description = "Default labels to apply where supported"
+  type        = map(string)
+  default     = {}
+}
+
+variable "security_groups" {
+  description = "Map of security group definitions"
+  type = map(object({
+    name        = optional(string)
+    project_key = string
+    description = optional(string)
+    rules = list(object({
+      direction   = string
+      description = optional(string)
+      ether_type  = optional(string)
+      icmp_parameters = optional(object({
+        type = optional(number)
+        code = optional(number)
+      }))
+      ip_range = optional(string)
+      port_range = optional(object({
+        min = number
+        max = number
+      }))
+      protocol = optional(object({
+        name   = optional(string)
+        number = optional(number)
+      }))
+      remote_security_group_id = optional(string)
+    }))
+  }))
+}
+
+variable "postgres_instances" {
+  description = "Map of PostgreSQL instances to create"
+  type = map(object({
+    name        = string
+    project_key = string
+    version     = number
+    flavor      = object({ cpu = number, ram = number })
+    storage     = object({ class = string, size = number })
+    replicas    = number
+    acl         = list(string)
+    backup_schedule = string
+    users = list(object({
+      username = string
+      roles    = set(string)
+    }))
+    databases = list(object({
+      name  = string
+      owner = string
+    }))
+  }))
+}
+
+variable "networks" {
+  description = "Map of network definitions per project"
+  type = map(object({
+    name        = string
+    project_key = string
+
+    # IPv4
+    ipv4_gateway       = optional(string)
+    ipv4_nameservers   = optional(list(string))
+    ipv4_prefix        = optional(string)
+    ipv4_prefix_length = optional(number)
+
+    # IPv6
+    ipv6_gateway       = optional(string)
+    ipv6_nameservers   = optional(list(string))
+    ipv6_prefix        = optional(string)
+    ipv6_prefix_length = optional(number)
+
+    # Flags & labels
+    labels          = optional(map(string))
+    no_ipv4_gateway = optional(bool)
+    no_ipv6_gateway = optional(bool)
+    routed          = optional(bool)
+
+    # NICs
+    nics = optional(map(object({
+      nic_ipv4                 = optional(string)
+      nic_name                 = string
+      nic_allowed_addresses    = optional(list(string))
+      nic_labels               = optional(map(string))
+      nic_security             = optional(bool)
+      nic_security_group_ids   = optional(list(string))
+      nic_security_group_names = optional(list(string))
+    })))
+  }))
+  default = {}
+}
+
+# -----------------------------------------------------------------------------#
+# SKE Clusters
+# -----------------------------------------------------------------------------#
+
+variable "ske_clusters" {
+  description = "Map of SKE cluster definitions"
+  type = map(object({
+    name                   = string
+    project_key            = string
+    kubernetes_version_min = optional(string)
+    hibernations = optional(list(object({
+      start    = string
+      end      = string
+      timezone = optional(string)
+    })))
+    maintenance = optional(object({
+      enable_kubernetes_version_updates    = bool
+      enable_machine_image_version_updates = bool
+      start                                = string
+      end                                  = string
+    }))
+    extensions = optional(object({
+      acl = optional(object({
+        enabled       = bool
+        allowed_cidrs = list(string)
+      }))
+      argus = optional(object({
+        enabled           = bool
+        argus_instance_id = string
+      }))
+    }))
+
+    node_pools = list(object({
+      name               = string
+      machine_type       = string
+      availability_zones = list(string)
+      minimum            = number
+      maximum            = number
+
+      allow_system_components = optional(bool)
+      cri                     = optional(string)
+      labels                  = optional(map(string))
+      max_surge               = optional(number)
+      max_unavailable         = optional(number)
+      os_name                 = optional(string)
+      os_version_min          = optional(string)
+      volume_size             = optional(number)
+      volume_type             = optional(string)
+      taints = optional(list(object({
+        effect = string
+        key    = string
+        value  = optional(string)
+      })))
+    }))
+  }))
+  default = {}
+}
+
+variable "observability_instances" {
+  description = "Map of Observability instances to create"
+  type = map(object({
+    name        = string
+    project_key = string
+    plan_name   = string
+
+    # Instance settings
+    acl                                    = optional(list(string))
+    metrics_retention_days                 = optional(number)
+    metrics_retention_days_5m_downsampling = optional(number)
+    metrics_retention_days_1h_downsampling = optional(number)
+    alert_config                           = optional(any)
+    parameters                             = optional(map(string))
+
+    # Credentials
+    create_credentials = optional(bool, true)
+    credentials_count  = optional(number, 1)
+
+    # Alert-groups
+    alertgroups = optional(map(object({
+      name     = string
+      interval = optional(string)
+      rules = list(object({
+        alert       = string
+        expression  = string
+        for         = optional(string)
+        labels      = optional(map(string))
+        annotations = optional(map(string))
+      }))
+    })), {})
+
+    # Log-alert-groups
+    logalertgroups = optional(map(object({
+      name     = string
+      interval = optional(string)
+      rules = list(object({
+        alert       = string
+        expression  = string
+        for         = optional(string)
+        labels      = optional(map(string))
+        annotations = optional(map(string))
+      }))
+    })), {})
+
+    # Scrape-configs
+    scrapeconfigs = optional(map(object({
+      name         = string
+      metrics_path = string
+      targets = list(object({
+        urls   = list(string)
+        labels = optional(map(string))
+      }))
+      basic_auth = optional(object({
+        username = string
+        password = string
+      }))
+      saml2 = optional(object({
+        enable_url_parameters = optional(bool)
+      }))
+      sample_limit    = optional(number)
+      scheme          = optional(string)
+      scrape_interval = optional(string)
+      scrape_timeout  = optional(string)
+    })), {})
+  }))
+  default = {}
+
+  validation {
+    condition = alltrue([
+      for k, v in var.observability_instances :
+      contains([
+        "Observability-Medium-EU01",
+        "Observability-Monitoring-XL-EU01",
+        "Observability-Large-EU01",
+        "Observability-Monitoring-Basic-EU01",
+        "Observability-Monitoring-Large-EU01",
+        "Observability-Basic-EU01",
+        "Observability-Monitoring-Medium-EU01",
+        "Observability-Monitoring-XXL-EU01",
+        "Observability-Metrics-Endpoint-100k-EU01",
+        "Observability-Frontend-Starter-EU01",
+        "Observability-Monitoring-Starter-EU01",
+        "Observability-Starter-EU01",
+      ], v.plan_name)
+    ])
+    error_message = <<-EOM
+  One or more observability_instances specify an invalid plan_name.
+  See the provider error output for supported plans. Allowed:
+      Observability-Medium-EU01
+      Observability-Monitoring-XL-EU01
+      Observability-Large-EU01
+      Observability-Monitoring-Basic-EU01
+      Observability-Monitoring-Large-EU01
+      Observability-Basic-EU01
+      Observability-Monitoring-Medium-EU01
+      Observability-Monitoring-XXL-EU01
+      Observability-Metrics-Endpoint-100k-EU01
+      Observability-Frontend-Starter-EU01
+      Observability-Monitoring-Starter-EU01
+      Observability-Starter-EU01
+  EOM
+  }
+}
diff --git a/project_old/main.tf b/project_old/main.tf
new file mode 100644
index 0000000..58176f0
--- /dev/null
+++ b/project_old/main.tf
@@ -0,0 +1,34 @@
+variable "projects" {
+  type = map(object({
+    name        = string
+    owner_email = string
+  }))
+  default = {
+    project1 = {
+      name        = "project-alpha"
+      owner_email = "michael.sodan@stackit.cloud"
+    }
+    project2 = {
+      name        = "project-beta"
+      owner_email = "michael.sodan@stackit.cloud"
+    }
+  }
+}
+
+resource "stackit_resourcemanager_project" "projects" {
+  for_each            = var.projects
+  parent_container_id = var.organization_id # Nutzt jetzt die übergebene Variable
+  name                = each.value.name
+  owner_email         = each.value.owner_email
+  # labels = { ... } # Vorerst entfernt, da stackit_network_area nicht definiert war
+}
+
+output "project_info" {
+  value = {
+    for k, project in stackit_resourcemanager_project.projects : k => {
+      project_id   = project.project_id
+      container_id = project.container_id
+    }
+  }
+}
+
diff --git a/project_old/provider.tf b/project_old/provider.tf
new file mode 100644
index 0000000..a89dd02
--- /dev/null
+++ b/project_old/provider.tf
@@ -0,0 +1,10 @@
+
+terraform {
+  required_providers {
+    stackit = {
+      source  = "stackitcloud/stackit"
+      version = ">= 0.54.0" # Diese Version passt zu Ihrer Anforderung
+    }
+  }
+}
+
diff --git a/project_old/sna.tf b/project_old/sna.tf
new file mode 100644
index 0000000..711c80d
--- /dev/null
+++ b/project_old/sna.tf
@@ -0,0 +1,27 @@
+/* resource "time_sleep" "wait_before_destroy" {
+  destroy_duration = "60s"
+}
+*/
+
+resource "stackit_network_area" "sna" {
+  organization_id = var.organization_id
+  name            = "bego_sna"
+  network_ranges = [
+    {
+      prefix = "10.220.0.0/16"
+    }
+  ]
+  transfer_network = "var.sna_net"
+  //depends_on = [time_sleep.wait_before_destroy]
+}
+
+/* resource "stackit_network_area_route" "sna_route1" {
+  organization_id = var.organization_id
+  network_area_id = stackit_network_area.sna.network_area_id
+  prefix          = "10.220.99.0/24"
+  next_hop        = "10.220.0.0"
+  labels = {
+    "key" = "value"
+  }
+}
+*/
diff --git a/project_old/variables.tf b/project_old/variables.tf
new file mode 100644
index 0000000..6a8400f
--- /dev/null
+++ b/project_old/variables.tf
@@ -0,0 +1,10 @@
+variable "organization_id" {
+  description = "Empfängt die Container-ID der Organisation vom Root-Modul."
+  type        = string
+}
+
+variable "sna_net" {
+  description = "SNA Transfer Network"
+  type        = string
+}
+