diff --git a/config/_ha_secrets.nix b/config/_ha_secrets.nix
new file mode 120000
index 0000000..52185c3
--- /dev/null
+++ b/config/_ha_secrets.nix
@@ -0,0 +1 @@
+/home/xmorel/homelab-private/_ha_secrets.nix
\ No newline at end of file
diff --git a/modules/containers-terraform-authentik.nix b/modules/containers-terraform-authentik.nix
index 7326193..3e3359b 100644
--- a/modules/containers-terraform-authentik.nix
+++ b/modules/containers-terraform-authentik.nix
@@ -6,7 +6,8 @@
 }:
 let
   cfg = config.my-lxc;
-  sec = import ../config/_matrix_secrets.nix;
+  matrix = import ../config/_matrix_secrets.nix;
+  hass = import ../config/_ha_secrets.nix;
 in
 {
   authentik_provider_proxy = lib.filterAttrs (_: v: v != { }) (
@@ -33,11 +34,15 @@ in
       ) cfg
     )
     // {
+      home_assistant = {
+        name = "home_assistant";
+        slug = "home_assistant";
+        protocol_provider = "\${resource.authentik_provider_oauth2.home_assistant.id}";
+      };
       matrix = {
         name = "matrix";
         slug = "matrix";
         protocol_provider = "\${resource.authentik_provider_oauth2.matrix.id}";
-
       };
     };
   authentik_outpost_provider_attachment =
@@ -51,17 +56,56 @@ in
       ) cfg
     )
     // {
+      home_assistant = {
+        outpost = "\${data.authentik_outpost.embedded.id}";
+        protocol_provider = "\${authentik_provider_oauth2.home_assistant.id}";
+      };
       matrix = {
         outpost = "\${data.authentik_outpost.embedded.id}";
         protocol_provider = "\${authentik_provider_oauth2.matrix.id}";
       };
     };
 
-  authentik_provider_oauth2.matrix = {
-    name = "matrix";
-    authorization_flow = "\${data.authentik_flow.default-authorization-flow.id}";
-    invalidation_flow = "\${data.authentik_flow.default-invalidation-flow.id}";
-    client_id = sec.oidc_client_id;
-    client_secret = sec.oidc_client_secret;
+  authentik_provider_oauth2 = {
+    home_assistant = {
+      name = "home_assistant";
+      authorization_flow = "\${data.authentik_flow.default-authorization-flow.id}";
+      invalidation_flow = "\${data.authentik_flow.default-invalidation-flow.id}";
+      client_id = hass.oidc_client_id;
+      client_secret = hass.oidc_client_secret;
+
+      property_mappings = [
+        "\${data.authentik_property_mapping_provider_scope.proxy_outpost.id}"
+        "\${data.authentik_property_mapping_provider_scope.openid_openid.id}"
+        "\${data.authentik_property_mapping_provider_scope.openid_email.id}"
+        "\${data.authentik_property_mapping_provider_scope.openid_profile.id}"
+        "\${data.authentik_property_mapping_provider_scope.app_entitlement.id}"
+        "\${data.authentik_property_mapping_provider_scope.openid_offline_access.id}"
+        "\${data.authentik_property_mapping_provider_scope.authentik_api.id}"
+      ];
+
+      signing_key = "\${data.authentik_certificate_key_pair.generated.id}";
+
+      allowed_redirect_uris = [
+        {
+          matching_mode = "strict";
+          url = "https://homeassistant.plg.m0rel.eu/auth/oidc/callback";
+        }
+      ];
+    };
+    matrix = {
+      name = "matrix";
+      authorization_flow = "\${data.authentik_flow.default-authorization-flow.id}";
+      invalidation_flow = "\${data.authentik_flow.default-invalidation-flow.id}";
+      client_id = matrix.oidc_client_id;
+      client_secret = matrix.oidc_client_secret;
+
+      allowed_redirect_uris = [
+        {
+          matching_mode = "strict";
+          url = "https://matrix.plg.m0rel.eu/_synapse/client/oidc/callback";
+        }
+      ];
+    };
   };
 }
diff --git a/modules/terraform-base.nix b/modules/terraform-base.nix
index 097b647..598453e 100644
--- a/modules/terraform-base.nix
+++ b/modules/terraform-base.nix
@@ -25,6 +25,31 @@
   variable.ak_url.type = "string";
   variable.ak_token.type = "string";
 
+  data.authentik_certificate_key_pair.generated = {
+    name = "authentik Self-signed Certificate";
+  };
+  data.authentik_property_mapping_provider_scope.openid_email = {
+    name = "authentik default OAuth Mapping: OpenID 'email'";
+  };
+  data.authentik_property_mapping_provider_scope.openid_offline_access = {
+    name = "authentik default OAuth Mapping: OpenID 'offline_access'";
+  };
+  data.authentik_property_mapping_provider_scope.openid_openid = {
+    name = "authentik default OAuth Mapping: OpenID 'openid'";
+  };
+  data.authentik_property_mapping_provider_scope.openid_profile = {
+    name = "authentik default OAuth Mapping: OpenID 'profile'";
+  };
+  data.authentik_property_mapping_provider_scope.app_entitlement = {
+    name = "authentik default OAuth Mapping: Application Entitlements";
+  };
+  data.authentik_property_mapping_provider_scope.authentik_api = {
+    name = "authentik default OAuth Mapping: authentik API access";
+  };
+  data.authentik_property_mapping_provider_scope.proxy_outpost = {
+    name = "authentik default OAuth Mapping: Proxy outpost";
+  };
+
   provider.proxmox = {
     pm_api_url = "\${var.pm_api_url}";
     pm_api_token_id = "\${var.pm_api_token_id}";