diff --git a/admin/.env.template b/admin/.env.template
index 636b15593..11e849271 100644
--- a/admin/.env.template
+++ b/admin/.env.template
@@ -1,6 +1,7 @@
 CONFIG_VERSION=$ADMIN_CONFIG_VERSION
 
 COMMUNITY_HOST=$COMMUNITY_HOST
+URL_PROTOCOL=$URL_PROTOCOL
 WALLET_AUTH_PATH=$WALLET_AUTH_PATH
 WALLET_LOGIN_PATH=$WALLET_LOGIN_PATH
 GRAPHQL_PATH=$GRAPHQL_PATH
diff --git a/admin/src/components/NavBar.vue b/admin/src/components/NavBar.vue
index 2efeda048..4191290f3 100644
--- a/admin/src/components/NavBar.vue
+++ b/admin/src/components/NavBar.vue
@@ -38,8 +38,8 @@ export default {
   name: 'navbar',
   methods: {
     async logout() {
-      window.location.assign(CONFIG.WALLET_URL)
-      // window.location = CONFIG.WALLET_URL
+      window.location.assign(CONFIG.WALLET_LOGIN_URL)
+      // window.location = CONFIG.WALLET_LOGIN_URL
       this.$store.dispatch('logout')
       await this.$apollo.mutate({
         mutation: logout,
diff --git a/admin/src/config/index.js b/admin/src/config/index.js
index 10c75579a..708815398 100644
--- a/admin/src/config/index.js
+++ b/admin/src/config/index.js
@@ -14,38 +14,38 @@ const constants = {
 
 const version = {
   APP_VERSION: pkg.version,
-  BUILD_COMMIT: process.env.BUILD_COMMIT || null,
+  BUILD_COMMIT: process.env.BUILD_COMMIT ?? null,
   // self reference of `version.BUILD_COMMIT` is not possible at this point, hence the duplicate code
-  BUILD_COMMIT_SHORT: (process.env.BUILD_COMMIT || '0000000').slice(0, 7),
-  PORT: process.env.PORT || 8080,
+  BUILD_COMMIT_SHORT: (process.env.BUILD_COMMIT ?? '0000000').slice(0, 7),
+  PORT: process.env.PORT ?? 8080,
 }
 
 const environment = {
   NODE_ENV: process.env.NODE_ENV,
-  DEBUG: process.env.NODE_ENV !== 'production' || false,
-  PRODUCTION: process.env.NODE_ENV === 'production' || false,
+  DEBUG: process.env.NODE_ENV !== 'production' ?? false,
+  PRODUCTION: process.env.NODE_ENV === 'production' ?? false,
 }
 
-const COMMUNITY_HOST = process.env.COMMUNITY_HOST || undefined
-const URL_PROTOCOL = process.env.URL_PROTOCOL || 'http'
+const COMMUNITY_HOST = process.env.COMMUNITY_HOST ?? undefined
+const URL_PROTOCOL = process.env.URL_PROTOCOL ?? 'http'
 const COMMUNITY_URL =
   COMMUNITY_HOST && URL_PROTOCOL ? URL_PROTOCOL + '://' + COMMUNITY_HOST : undefined
-const WALLET_URL = process.env.WALLET_URL || COMMUNITY_URL || 'http://localhost'
+const WALLET_URL = process.env.WALLET_URL ?? COMMUNITY_URL ?? 'http://localhost'
 
 const endpoints = {
   GRAPHQL_URL:
-    (process.env.GRAPHQL_URL || COMMUNITY_URL || 'http://localhost:4000') +
-      process.env.GRAPHQL_PATH || '/graphql',
-  WALLET_AUTH_URL: WALLET_URL + (process.env.WALLET_AUTH_PATH || '/authenticate?token={token}'),
-  WALLET_LOGIN_URL: WALLET_URL + (process.env.WALLET_LOGIN_PATH || '/login'),
+    (process.env.GRAPHQL_URL ?? COMMUNITY_URL ?? 'http://localhost:4000') +
+      process.env.GRAPHQL_PATH ?? '/graphql',
+  WALLET_AUTH_URL: WALLET_URL + (process.env.WALLET_AUTH_PATH ?? '/authenticate?token={token}'),
+  WALLET_LOGIN_URL: WALLET_URL + (process.env.WALLET_LOGIN_PATH ?? '/login'),
 }
 
 const debug = {
-  DEBUG_DISABLE_AUTH: process.env.DEBUG_DISABLE_AUTH === 'true' || false,
+  DEBUG_DISABLE_AUTH: process.env.DEBUG_DISABLE_AUTH === 'true' ?? false,
 }
 
 // Check config version
-constants.CONFIG_VERSION.CURRENT = process.env.CONFIG_VERSION || constants.CONFIG_VERSION.DEFAULT
+constants.CONFIG_VERSION.CURRENT = process.env.CONFIG_VERSION ?? constants.CONFIG_VERSION.DEFAULT
 if (
   ![constants.CONFIG_VERSION.EXPECTED, constants.CONFIG_VERSION.DEFAULT].includes(
     constants.CONFIG_VERSION.CURRENT,
diff --git a/backend/.env.dist b/backend/.env.dist
index 9844d8c4a..96afd1ab5 100644
--- a/backend/.env.dist
+++ b/backend/.env.dist
@@ -28,9 +28,9 @@ DLT_CONNECTOR_URL=http://localhost:6010
 # Community
 COMMUNITY_NAME=Gradido Entwicklung
 COMMUNITY_URL=http://localhost/
-COMMUNITY_REGISTER_URL=http://localhost/register
-COMMUNITY_REDEEM_URL=http://localhost/redeem/{code}
-COMMUNITY_REDEEM_CONTRIBUTION_URL=http://localhost/redeem/CL-{code}
+COMMUNITY_REGISTER_PATH=/register
+COMMUNITY_REDEEM_PATH=/redeem/{code}
+COMMUNITY_REDEEM_CONTRIBUTION_PATH=/redeem/CL-{code}
 COMMUNITY_DESCRIPTION=Die lokale Entwicklungsumgebung von Gradido.
 COMMUNITY_SUPPORT_MAIL=support@supportmail.com
 
@@ -47,10 +47,10 @@ EMAIL_SENDER=info@gradido.net
 EMAIL_PASSWORD=xxx
 EMAIL_SMTP_URL=gmail.com
 EMAIL_SMTP_PORT=587
-EMAIL_LINK_VERIFICATION=http://localhost/checkEmail/{optin}{code}
-EMAIL_LINK_SETPASSWORD=http://localhost/reset-password/{optin}
-EMAIL_LINK_FORGOTPASSWORD=http://localhost/forgot-password
-EMAIL_LINK_OVERVIEW=http://localhost/overview
+EMAIL_LINK_VERIFICATION_PATH=/checkEmail/{optin}{code}
+EMAIL_LINK_SETPASSWORD_PATH=/reset-password/{optin}
+EMAIL_LINK_FORGOTPASSWORD_PATH=/forgot-password
+EMAIL_LINK_OVERVIEW_PATH=/overview
 EMAIL_CODE_VALID_TIME=1440
 EMAIL_CODE_REQUEST_TIME=10
 
diff --git a/backend/.env.template b/backend/.env.template
index e79122368..9133428ab 100644
--- a/backend/.env.template
+++ b/backend/.env.template
@@ -25,14 +25,15 @@ KLICKTIPP_APIKEY_EN=$KLICKTIPP_APIKEY_EN
 
 # DltConnector
 DLT_CONNECTOR=$DLT_CONNECTOR
-DLT_CONNECTOR_URL=$DLT_CONNECTOR_URL
+DLT_CONNECTOR_PORT=$DLT_CONNECTOR_PORT
 
 # Community
+COMMUNITY_HOST=$COMMUNITY_HOST
+URL_PROTOCOL=$URL_PROTOCOL
 COMMUNITY_NAME=$COMMUNITY_NAME
-COMMUNITY_URL=$COMMUNITY_URL
-COMMUNITY_REGISTER_URL=$COMMUNITY_REGISTER_URL
-COMMUNITY_REDEEM_URL=$COMMUNITY_REDEEM_URL
-COMMUNITY_REDEEM_CONTRIBUTION_URL=$COMMUNITY_REDEEM_CONTRIBUTION_URL
+COMMUNITY_REGISTER_PATH=$COMMUNITY_REGISTER_PATH
+COMMUNITY_REDEEM_PATH=$COMMUNITY_REDEEM_PATH
+COMMUNITY_REDEEM_CONTRIBUTION_PATH=$COMMUNITY_REDEEM_CONTRIBUTION_PATH
 COMMUNITY_DESCRIPTION=$COMMUNITY_DESCRIPTION
 COMMUNITY_SUPPORT_MAIL=$COMMUNITY_SUPPORT_MAIL
 
diff --git a/backend/src/config/index.ts b/backend/src/config/index.ts
index 6f03d21b9..cbb9eabf9 100644
--- a/backend/src/config/index.ts
+++ b/backend/src/config/index.ts
@@ -19,7 +19,7 @@ const constants = {
   LOG_LEVEL: process.env.LOG_LEVEL ?? 'info',
   CONFIG_VERSION: {
     DEFAULT: 'DEFAULT',
-    EXPECTED: 'v20.2023-09-19',
+    EXPECTED: 'v21.2024-01-06',
     CURRENT: '',
   },
 }
@@ -51,18 +51,23 @@ const klicktipp = {
   KLICKTIPP_APIKEY_EN: process.env.KLICKTIPP_APIKEY_EN ?? 'SomeFakeKeyEN',
 }
 
+const COMMUNITY_HOST = process.env.COMMUNITY_HOST ?? 'localhost'
+const URL_PROTOCOL = process.env.URL_PROTOCOL ?? 'http'
+const COMMUNITY_URL = process.env.COMMUNITY_URL ?? `${URL_PROTOCOL}://${COMMUNITY_HOST}`
+const DLT_CONNECTOR_PORT = process.env.DLT_CONNECTOR_PORT ?? 6010
+
 const dltConnector = {
   DLT_CONNECTOR: process.env.DLT_CONNECTOR === 'true' || false,
-  DLT_CONNECTOR_URL: process.env.DLT_CONNECTOR_URL ?? 'http://localhost:6010',
+  DLT_CONNECTOR_URL: process.env.DLT_CONNECTOR_URL ?? `${COMMUNITY_URL}:${DLT_CONNECTOR_PORT}`,
 }
 
 const community = {
   COMMUNITY_NAME: process.env.COMMUNITY_NAME ?? 'Gradido Entwicklung',
-  COMMUNITY_URL: process.env.COMMUNITY_URL ?? 'http://localhost/',
-  COMMUNITY_REGISTER_URL: process.env.COMMUNITY_REGISTER_URL ?? 'http://localhost/register',
-  COMMUNITY_REDEEM_URL: process.env.COMMUNITY_REDEEM_URL ?? 'http://localhost/redeem/{code}',
+  COMMUNITY_URL,
+  COMMUNITY_REGISTER_URL: COMMUNITY_URL + (process.env.COMMUNITY_REGISTER_PATH ?? '/register'),
+  COMMUNITY_REDEEM_URL: COMMUNITY_URL + (process.env.COMMUNITY_REDEEM_PATH ?? '/redeem/{code}'),
   COMMUNITY_REDEEM_CONTRIBUTION_URL:
-    process.env.COMMUNITY_REDEEM_CONTRIBUTION_URL ?? 'http://localhost/redeem/CL-{code}',
+    COMMUNITY_URL + (process.env.COMMUNITY_REDEEM_CONTRIBUTION_PATH ?? '/redeem/CL-{code}'),
   COMMUNITY_DESCRIPTION:
     process.env.COMMUNITY_DESCRIPTION ?? 'Die lokale Entwicklungsumgebung von Gradido.',
   COMMUNITY_SUPPORT_MAIL: process.env.COMMUNITY_SUPPORT_MAIL ?? 'support@supportmail.com',
@@ -74,8 +79,8 @@ const loginServer = {
 }
 
 const email = {
-  EMAIL: process.env.EMAIL === 'true' || false,
-  EMAIL_TEST_MODUS: process.env.EMAIL_TEST_MODUS === 'true' || false,
+  EMAIL: process.env.EMAIL === 'true' ?? false,
+  EMAIL_TEST_MODUS: process.env.EMAIL_TEST_MODUS === 'true' ?? false,
   EMAIL_TEST_RECEIVER: process.env.EMAIL_TEST_RECEIVER ?? 'stage1@gradido.net',
   EMAIL_USERNAME: process.env.EMAIL_USERNAME ?? '',
   EMAIL_SENDER: process.env.EMAIL_SENDER ?? 'info@gradido.net',
@@ -85,19 +90,19 @@ const email = {
   // eslint-disable-next-line no-unneeded-ternary
   EMAIL_TLS: process.env.EMAIL_TLS === 'false' ? false : true,
   EMAIL_LINK_VERIFICATION:
-    process.env.EMAIL_LINK_VERIFICATION ?? 'http://localhost/checkEmail/{optin}{code}',
+    COMMUNITY_URL + (process.env.EMAIL_LINK_VERIFICATION_PATH ?? '/checkEmail/{optin}{code}'),
   EMAIL_LINK_SETPASSWORD:
-    process.env.EMAIL_LINK_SETPASSWORD ?? 'http://localhost/reset-password/{optin}',
+    COMMUNITY_URL + (process.env.EMAIL_LINK_SETPASSWORD_PATH ?? '/reset-password/{optin}'),
   EMAIL_LINK_FORGOTPASSWORD:
-    process.env.EMAIL_LINK_FORGOTPASSWORD ?? 'http://localhost/forgot-password',
-  EMAIL_LINK_OVERVIEW: process.env.EMAIL_LINK_OVERVIEW ?? 'http://localhost/overview',
+    COMMUNITY_URL + (process.env.EMAIL_LINK_FORGOTPASSWORD_PATH ?? '/forgot-password'),
+  EMAIL_LINK_OVERVIEW: COMMUNITY_URL + (process.env.EMAIL_LINK_OVERVIEW_PATH ?? '/overview'),
   // time in minutes a optin code is valid
   EMAIL_CODE_VALID_TIME: process.env.EMAIL_CODE_VALID_TIME
-    ? parseInt(process.env.EMAIL_CODE_VALID_TIME) || 1440
+    ? parseInt(process.env.EMAIL_CODE_VALID_TIME) ?? 1440
     : 1440,
   // time in minutes that must pass to request a new optin code
   EMAIL_CODE_REQUEST_TIME: process.env.EMAIL_CODE_REQUEST_TIME
-    ? parseInt(process.env.EMAIL_CODE_REQUEST_TIME) || 10
+    ? parseInt(process.env.EMAIL_CODE_REQUEST_TIME) ?? 10
     : 10,
 }
 
@@ -124,9 +129,9 @@ if (
 const federation = {
   FEDERATION_BACKEND_SEND_ON_API: process.env.FEDERATION_BACKEND_SEND_ON_API ?? '1_0',
   FEDERATION_VALIDATE_COMMUNITY_TIMER:
-    Number(process.env.FEDERATION_VALIDATE_COMMUNITY_TIMER) || 60000,
+    Number(process.env.FEDERATION_VALIDATE_COMMUNITY_TIMER) ?? 60000,
   FEDERATION_XCOM_SENDCOINS_ENABLED:
-    process.env.FEDERATION_XCOM_SENDCOINS_ENABLED === 'true' || false,
+    process.env.FEDERATION_XCOM_SENDCOINS_ENABLED === 'true' ?? false,
   // default value for community-uuid is equal uuid of stage-3
   FEDERATION_XCOM_RECEIVER_COMMUNITY_UUID:
     process.env.FEDERATION_XCOM_RECEIVER_COMMUNITY_UUID ?? '56a55482-909e-46a4-bfa2-cd025e894ebc',
diff --git a/deployment/bare_metal/.env.dist b/deployment/bare_metal/.env.dist
index 796bf4d46..973a9e8a6 100644
--- a/deployment/bare_metal/.env.dist
+++ b/deployment/bare_metal/.env.dist
@@ -7,8 +7,8 @@ COMMUNITY_SUPPORT_MAIL=support@supportmail.com
 # Need to adjust by updates
 # config versions
 DATABASE_CONFIG_VERSION=v1.2022-03-18
-BACKEND_CONFIG_VERSION=v17.2023-07-03
-FRONTEND_CONFIG_VERSION=v4.2022-12-20
+BACKEND_CONFIG_VERSION=v21.2024-01-06
+FRONTEND_CONFIG_VERSION=v5.2024-01-08
 ADMIN_CONFIG_VERSION=v2.2024-01-04
 FEDERATION_CONFIG_VERSION=v1.2023-01-09
 FEDERATION_DHT_CONFIG_VERSION=v3.2023-04-26
@@ -45,10 +45,10 @@ COMMUNITY_REDEEM_PATH=/redeem/{code}
 COMMUNITY_REDEEM_CONTRIBUTION_PATH=/redeem/CL-{code}
 WALLET_LOGIN_PATH=/login
 WALLET_AUTH_PATH=/authenticate?token={token}
-EMAIL_LINK_VERIFICATION=/checkEmail/{optin}{code}
-EMAIL_LINK_SETPASSWORD=/reset-password/{optin}
-EMAIL_LINK_FORGOTPASSWORD=/forgot-password
-EMAIL_LINK_OVERVIEW=/overview
+EMAIL_LINK_VERIFICATION_PATH=/checkEmail/{optin}{code}
+EMAIL_LINK_SETPASSWORD_PATH=/reset-password/{optin}
+EMAIL_LINK_FORGOTPASSWORD_PATH=/forgot-password
+EMAIL_LINK_OVERVIEW_PATH=/overview
 ADMIN_AUTH_PATH=/admin/authenticate?token={token}
 GRAPHQL_PATH=/graphql
 
diff --git a/dht-node/.env.template b/dht-node/.env.template
index 1278f61be..c342247e5 100644
--- a/dht-node/.env.template
+++ b/dht-node/.env.template
@@ -19,5 +19,6 @@ FEDERATION_DHT_CONFIG_VERSION=$FEDERATION_DHT_CONFIG_VERSION
 # on an hash created from this topic
 FEDERATION_DHT_TOPIC=$FEDERATION_DHT_TOPIC
 FEDERATION_DHT_SEED=$FEDERATION_DHT_SEED
-FEDERATION_COMMUNITY_URL=$FEDERATION_COMMUNITY_URL
+COMMUNITY_HOST=$COMMUNITY_HOST
+URL_PROTOCOL=$URL_PROTOCOL
 FEDERATION_COMMUNITY_API_PORT=$FEDERATION_COMMUNITY_API_PORT
diff --git a/dht-node/src/config/index.ts b/dht-node/src/config/index.ts
index 2548166f4..90f99fcf5 100644
--- a/dht-node/src/config/index.ts
+++ b/dht-node/src/config/index.ts
@@ -7,7 +7,7 @@ const constants = {
   DB_VERSION: '0078-move_resubmission_date',
   LOG4JS_CONFIG: 'log4js-config.json',
   // default log level on production should be info
-  LOG_LEVEL: process.env.LOG_LEVEL || 'info',
+  LOG_LEVEL: process.env.LOG_LEVEL ?? 'info',
   CONFIG_VERSION: {
     DEFAULT: 'DEFAULT',
     EXPECTED: 'v3.2023-04-26',
@@ -16,34 +16,38 @@ const constants = {
 }
 
 const server = {
-  PRODUCTION: process.env.NODE_ENV === 'production' || false,
+  PRODUCTION: process.env.NODE_ENV === 'production' ?? false,
 }
 
 const database = {
-  DB_HOST: process.env.DB_HOST || 'localhost',
+  DB_HOST: process.env.DB_HOST ?? 'localhost',
   DB_PORT: process.env.DB_PORT ? parseInt(process.env.DB_PORT) : 3306,
-  DB_USER: process.env.DB_USER || 'root',
-  DB_PASSWORD: process.env.DB_PASSWORD || '',
-  DB_DATABASE: process.env.DB_DATABASE || 'gradido_community',
+  DB_USER: process.env.DB_USER ?? 'root',
+  DB_PASSWORD: process.env.DB_PASSWORD ?? '',
+  DB_DATABASE: process.env.DB_DATABASE ?? 'gradido_community',
   TYPEORM_LOGGING_RELATIVE_PATH:
-    process.env.TYPEORM_LOGGING_RELATIVE_PATH || 'typeorm.dht-node.log',
+    process.env.TYPEORM_LOGGING_RELATIVE_PATH ?? 'typeorm.dht-node.log',
 }
 
 const community = {
-  COMMUNITY_NAME: process.env.COMMUNITY_NAME || 'Gradido Entwicklung',
+  COMMUNITY_NAME: process.env.COMMUNITY_NAME ?? 'Gradido Entwicklung',
   COMMUNITY_DESCRIPTION:
-    process.env.COMMUNITY_DESCRIPTION || 'Gradido-Community einer lokalen Entwicklungsumgebung.',
+    process.env.COMMUNITY_DESCRIPTION ?? 'Gradido-Community einer lokalen Entwicklungsumgebung.',
 }
 
+const COMMUNITY_HOST = process.env.COMMUNITY_HOST ?? 'localhost'
+const URL_PROTOCOL = process.env.URL_PROTOCOL ?? 'http'
+const COMMUNITY_URL = process.env.COMMUNITY_URL ?? `${URL_PROTOCOL}://${COMMUNITY_HOST}`
+
 const federation = {
-  FEDERATION_DHT_TOPIC: process.env.FEDERATION_DHT_TOPIC || 'GRADIDO_HUB',
-  FEDERATION_DHT_SEED: process.env.FEDERATION_DHT_SEED || null,
-  FEDERATION_COMMUNITY_URL: process.env.FEDERATION_COMMUNITY_URL || 'http://localhost',
-  FEDERATION_COMMUNITY_API_PORT: process.env.FEDERATION_COMMUNITY_API_PORT || '5000',
+  FEDERATION_DHT_TOPIC: process.env.FEDERATION_DHT_TOPIC ?? 'GRADIDO_HUB',
+  FEDERATION_DHT_SEED: process.env.FEDERATION_DHT_SEED ?? null,
+  FEDERATION_COMMUNITY_URL: process.env.FEDERATION_COMMUNITY_URL ?? COMMUNITY_URL,
+  FEDERATION_COMMUNITY_API_PORT: process.env.FEDERATION_COMMUNITY_API_PORT ?? '5000',
 }
 
 // Check config version
-constants.CONFIG_VERSION.CURRENT = process.env.CONFIG_VERSION || constants.CONFIG_VERSION.DEFAULT
+constants.CONFIG_VERSION.CURRENT = process.env.CONFIG_VERSION ?? constants.CONFIG_VERSION.DEFAULT
 if (
   ![constants.CONFIG_VERSION.EXPECTED, constants.CONFIG_VERSION.DEFAULT].includes(
     constants.CONFIG_VERSION.CURRENT,
diff --git a/dlt-connector/src/config/index.ts b/dlt-connector/src/config/index.ts
index fc8c780b8..37332a4b2 100644
--- a/dlt-connector/src/config/index.ts
+++ b/dlt-connector/src/config/index.ts
@@ -6,7 +6,7 @@ const constants = {
   LOG4JS_CONFIG: 'log4js-config.json',
   DB_VERSION: '0002-refactor_add_community',
   // default log level on production should be info
-  LOG_LEVEL: process.env.LOG_LEVEL || 'info',
+  LOG_LEVEL: process.env.LOG_LEVEL ?? 'info',
   CONFIG_VERSION: {
     DEFAULT: 'DEFAULT',
     EXPECTED: 'v4.2023-09-12',
@@ -15,7 +15,7 @@ const constants = {
 }
 
 const server = {
-  PRODUCTION: process.env.NODE_ENV === 'production' || false,
+  PRODUCTION: process.env.NODE_ENV === 'production' ?? false,
 }
 
 const database = {
@@ -35,11 +35,11 @@ const iota = {
 }
 
 const dltConnector = {
-  DLT_CONNECTOR_PORT: process.env.DLT_CONNECTOR_PORT || 6010,
+  DLT_CONNECTOR_PORT: process.env.DLT_CONNECTOR_PORT ?? 6010,
 }
 
 // Check config version
-constants.CONFIG_VERSION.CURRENT = process.env.CONFIG_VERSION || constants.CONFIG_VERSION.DEFAULT
+constants.CONFIG_VERSION.CURRENT = process.env.CONFIG_VERSION ?? constants.CONFIG_VERSION.DEFAULT
 if (
   ![constants.CONFIG_VERSION.EXPECTED, constants.CONFIG_VERSION.DEFAULT].includes(
     constants.CONFIG_VERSION.CURRENT,
diff --git a/dlt-database/src/config/index.ts b/dlt-database/src/config/index.ts
index 20208befc..46a1e580c 100644
--- a/dlt-database/src/config/index.ts
+++ b/dlt-database/src/config/index.ts
@@ -13,19 +13,19 @@ const constants = {
 }
 
 const database = {
-  DB_HOST: process.env.DB_HOST || 'localhost',
+  DB_HOST: process.env.DB_HOST ?? 'localhost',
   DB_PORT: process.env.DB_PORT ? parseInt(process.env.DB_PORT) : 3306,
-  DB_USER: process.env.DB_USER || 'root',
-  DB_PASSWORD: process.env.DB_PASSWORD || '',
-  DB_DATABASE: process.env.DB_DATABASE || 'gradido_dlt',
+  DB_USER: process.env.DB_USER ?? 'root',
+  DB_PASSWORD: process.env.DB_PASSWORD ?? '',
+  DB_DATABASE: process.env.DB_DATABASE ?? 'gradido_dlt',
 }
 
 const migrations = {
-  MIGRATIONS_TABLE: process.env.MIGRATIONS_TABLE || 'migrations',
+  MIGRATIONS_TABLE: process.env.MIGRATIONS_TABLE ?? 'migrations',
 }
 
 // Check config version
-constants.CONFIG_VERSION.CURRENT = process.env.CONFIG_VERSION || constants.CONFIG_VERSION.DEFAULT
+constants.CONFIG_VERSION.CURRENT = process.env.CONFIG_VERSION ?? constants.CONFIG_VERSION.DEFAULT
 if (
   ![constants.CONFIG_VERSION.EXPECTED, constants.CONFIG_VERSION.DEFAULT].includes(
     constants.CONFIG_VERSION.CURRENT,
diff --git a/federation/.env.template b/federation/.env.template
index e6ac8ad7d..91fb1c692 100644
--- a/federation/.env.template
+++ b/federation/.env.template
@@ -13,7 +13,8 @@ DB_PASSWORD=$DB_PASSWORD
 DB_DATABASE=gradido_community
 
 # Federation
-FEDERATION_COMMUNITY_URL=$FEDERATION_COMMUNITY_URL
+COMMUNITY_HOST=$COMMUNITY_HOST
+URL_PROTOCOL=$URL_PROTOCOL
 FEDERATION_CONFIG_VERSION=$FEDERATION_CONFIG_VERSION
 # comma separated list of api-versions, which cause starting several federation modules
 FEDERATION_COMMUNITY_APIS=$FEDERATION_COMMUNITY_APIS
\ No newline at end of file
diff --git a/federation/src/config/index.ts b/federation/src/config/index.ts
index 036ce67ee..a538080cb 100644
--- a/federation/src/config/index.ts
+++ b/federation/src/config/index.ts
@@ -14,7 +14,7 @@ const constants = {
   DECAY_START_TIME: new Date('2021-05-13 17:46:31-0000'), // GMT+0
   LOG4JS_CONFIG: 'log4js-config.json',
   // default log level on production should be info
-  LOG_LEVEL: process.env.LOG_LEVEL || 'info',
+  LOG_LEVEL: process.env.LOG_LEVEL ?? 'info',
   CONFIG_VERSION: {
     DEFAULT: 'DEFAULT',
     EXPECTED: 'v2.2023-08-24',
@@ -25,21 +25,21 @@ const constants = {
 const server = {
   // JWT_SECRET: process.env.JWT_SECRET || 'secret123',
   // JWT_EXPIRES_IN: process.env.JWT_EXPIRES_IN || '10m',
-  GRAPHIQL: process.env.GRAPHIQL === 'true' || false,
+  GRAPHIQL: process.env.GRAPHIQL === 'true' ?? false,
   // GDT_API_URL: process.env.GDT_API_URL || 'https://gdt.gradido.net',
-  PRODUCTION: process.env.NODE_ENV === 'production' || false,
+  PRODUCTION: process.env.NODE_ENV === 'production' ?? false,
 }
 const database = {
-  DB_HOST: process.env.DB_HOST || 'localhost',
+  DB_HOST: process.env.DB_HOST ?? 'localhost',
   DB_PORT: process.env.DB_PORT ? parseInt(process.env.DB_PORT) : 3306,
-  DB_USER: process.env.DB_USER || 'root',
-  DB_PASSWORD: process.env.DB_PASSWORD || '',
-  DB_DATABASE: process.env.DB_DATABASE || 'gradido_community',
-  TYPEORM_LOGGING_RELATIVE_PATH: process.env.TYPEORM_LOGGING_RELATIVE_PATH || 'typeorm.backend.log',
+  DB_USER: process.env.DB_USER ?? 'root',
+  DB_PASSWORD: process.env.DB_PASSWORD ?? '',
+  DB_DATABASE: process.env.DB_DATABASE ?? 'gradido_community',
+  TYPEORM_LOGGING_RELATIVE_PATH: process.env.TYPEORM_LOGGING_RELATIVE_PATH ?? 'typeorm.backend.log',
 }
 
 // Check config version
-constants.CONFIG_VERSION.CURRENT = process.env.CONFIG_VERSION || constants.CONFIG_VERSION.DEFAULT
+constants.CONFIG_VERSION.CURRENT = process.env.CONFIG_VERSION ?? constants.CONFIG_VERSION.DEFAULT
 if (
   ![constants.CONFIG_VERSION.EXPECTED, constants.CONFIG_VERSION.DEFAULT].includes(
     constants.CONFIG_VERSION.CURRENT,
@@ -50,10 +50,14 @@ if (
   )
 }
 
+const COMMUNITY_HOST = process.env.COMMUNITY_HOST ?? 'localhost'
+const URL_PROTOCOL = process.env.URL_PROTOCOL ?? 'http'
+const COMMUNITY_URL = process.env.COMMUNITY_URL ?? `${URL_PROTOCOL}://${COMMUNITY_HOST}`
+
 const federation = {
-  FEDERATION_API: process.env.FEDERATION_API || '1_0',
-  FEDERATION_PORT: process.env.FEDERATION_PORT || 5010,
-  FEDERATION_COMMUNITY_URL: process.env.FEDERATION_COMMUNITY_URL || null,
+  FEDERATION_API: process.env.FEDERATION_API ?? '1_0',
+  FEDERATION_PORT: process.env.FEDERATION_PORT ?? 5010,
+  FEDERATION_COMMUNITY_URL: process.env.FEDERATION_COMMUNITY_URL ?? COMMUNITY_URL,
   FEDERATION_TRADING_LEVEL: {
     RECEIVER_COMMUNITY_URL: 'https://stage3.gradido.net/api/',
     SEND_COINS: true,
diff --git a/frontend/.env.dist b/frontend/.env.dist
index 427d43359..f7e7edcd6 100644
--- a/frontend/.env.dist
+++ b/frontend/.env.dist
@@ -2,13 +2,13 @@
 DEFAULT_PUBLISHER_ID=2896
 
 # Endpoints
-GRAPHQL_URI=http://localhost/graphql
-ADMIN_AUTH_URL=http://localhost/admin/authenticate?token={token}
+GRAPHQL_PATH=/graphql
+ADMIN_AUTH_PATH=/admin/authenticate?token={token}
 
 # Community
 COMMUNITY_NAME=Gradido Entwicklung
 COMMUNITY_URL=http://localhost/
-COMMUNITY_REGISTER_URL=http://localhost/register
+COMMUNITY_REGISTER_PATH=/register
 COMMUNITY_DESCRIPTION=Die lokale Entwicklungsumgebung von Gradido.
 COMMUNITY_SUPPORT_MAIL=support@supportmail.com
 
diff --git a/frontend/.env.template b/frontend/.env.template
index 59e34eb80..e5662140c 100644
--- a/frontend/.env.template
+++ b/frontend/.env.template
@@ -4,13 +4,14 @@ CONFIG_VERSION=$FRONTEND_CONFIG_VERSION
 DEFAULT_PUBLISHER_ID=$DEFAULT_PUBLISHER_ID
 
 # Endpoints
-GRAPHQL_URI=$GRAPHQL_URI
-ADMIN_AUTH_URL=$ADMIN_AUTH_URL
+GRAPHQL_PATH=$GRAPHQL_PATH
+ADMIN_AUTH_PATH=$ADMIN_AUTH_PATH
 
 # Community
 COMMUNITY_NAME=$COMMUNITY_NAME
-COMMUNITY_URL=$COMMUNITY_URL
-COMMUNITY_REGISTER_URL=$COMMUNITY_REGISTER_URL
+COMMUNITY_HOST=$COMMUNITY_HOST
+URL_PROTOCOL=$URL_PROTOCOL
+COMMUNITY_REGISTER_PATH=$COMMUNITY_REGISTER_PATH
 COMMUNITY_DESCRIPTION=$COMMUNITY_DESCRIPTION
 COMMUNITY_SUPPORT_MAIL=$COMMUNITY_SUPPORT_MAIL
 
diff --git a/frontend/src/config/index.js b/frontend/src/config/index.js
index b90376672..dd2e85dac 100644
--- a/frontend/src/config/index.js
+++ b/frontend/src/config/index.js
@@ -8,61 +8,66 @@ const constants = {
   DECAY_START_TIME: new Date('2021-05-13 17:46:31-0000'), // GMT+0
   CONFIG_VERSION: {
     DEFAULT: 'DEFAULT',
-    EXPECTED: 'v4.2022-12-20',
+    EXPECTED: 'v5.2024-01-08',
     CURRENT: '',
   },
 }
 
 const version = {
   APP_VERSION: pkg.version,
-  BUILD_COMMIT: process.env.BUILD_COMMIT || null,
+  BUILD_COMMIT: process.env.BUILD_COMMIT ?? null,
   // self reference of `version.BUILD_COMMIT` is not possible at this point, hence the duplicate code
-  BUILD_COMMIT_SHORT: (process.env.BUILD_COMMIT || '0000000').slice(0, 7),
+  BUILD_COMMIT_SHORT: (process.env.BUILD_COMMIT ?? '0000000').slice(0, 7),
 }
 
 const environment = {
   NODE_ENV: process.env.NODE_ENV,
-  DEBUG: process.env.NODE_ENV !== 'production' || false,
-  PRODUCTION: process.env.NODE_ENV === 'production' || false,
-  DEFAULT_PUBLISHER_ID: process.env.DEFAULT_PUBLISHER_ID || 2896,
-  PORT: process.env.PORT || 3000,
+  DEBUG: process.env.NODE_ENV !== 'production' ?? false,
+  PRODUCTION: process.env.NODE_ENV === 'production' ?? false,
+  DEFAULT_PUBLISHER_ID: process.env.DEFAULT_PUBLISHER_ID ?? 2896,
+  PORT: process.env.PORT ?? 3000,
 }
 
+const COMMUNITY_HOST = process.env.COMMUNITY_HOST ?? 'localhost'
+const URL_PROTOCOL = process.env.URL_PROTOCOL ?? 'http'
+const COMMUNITY_URL = process.env.COMMUNITY_URL ?? `${URL_PROTOCOL}://${COMMUNITY_HOST}`
+
 const endpoints = {
-  GRAPHQL_URI: process.env.GRAPHQL_URI || 'http://localhost/graphql',
-  ADMIN_AUTH_URL: process.env.ADMIN_AUTH_URL || 'http://localhost/admin/authenticate?token={token}',
+  GRAPHQL_URI: COMMUNITY_URL + (process.env.GRAPHQL_PATH ?? '/graphql'),
+  ADMIN_AUTH_URL:
+    COMMUNITY_URL + (process.env.ADMIN_AUTH_PATH ?? '/admin/authenticate?token={token}'),
 }
 
 const community = {
-  COMMUNITY_NAME: process.env.COMMUNITY_NAME || 'Gradido Entwicklung',
-  COMMUNITY_URL: process.env.COMMUNITY_URL || 'http://localhost/',
-  COMMUNITY_REGISTER_URL: process.env.COMMUNITY_REGISTER_URL || 'http://localhost/register',
+  COMMUNITY_NAME: process.env.COMMUNITY_NAME ?? 'Gradido Entwicklung',
+  COMMUNITY_URL: COMMUNITY_URL,
+  COMMUNITY_REGISTER_URL: COMMUNITY_URL + (process.env.COMMUNITY_REGISTER_PATH ?? '/register'),
   COMMUNITY_DESCRIPTION:
-    process.env.COMMUNITY_DESCRIPTION || 'Die lokale Entwicklungsumgebung von Gradido.',
-  COMMUNITY_SUPPORT_MAIL: process.env.COMMUNITY_SUPPORT_MAIL || 'support@supportmail.com',
+    process.env.COMMUNITY_DESCRIPTION ?? 'Die lokale Entwicklungsumgebung von Gradido.',
+  COMMUNITY_SUPPORT_MAIL: process.env.COMMUNITY_SUPPORT_MAIL ?? 'support@supportmail.com',
 }
 
 const meta = {
-  META_URL: process.env.META_URL || 'http://localhost',
-  META_TITLE_DE: process.env.META_TITLE_DE || 'Gradido – Dein Dankbarkeitskonto',
-  META_TITLE_EN: process.env.META_TITLE_EN || 'Gradido - Your gratitude account',
+  META_URL: process.env.META_URL ?? 'http://localhost',
+  META_TITLE_DE: process.env.META_TITLE_DE ?? 'Gradido – Dein Dankbarkeitskonto',
+  META_TITLE_EN: process.env.META_TITLE_EN ?? 'Gradido - Your gratitude account',
   META_DESCRIPTION_DE:
-    process.env.META_DESCRIPTION_DE ||
+    process.env.META_DESCRIPTION_DE ??
     'Dankbarkeit ist die Währung der neuen Zeit. Immer mehr Menschen entfalten ihr Potenzial und gestalten eine gute Zukunft für alle.',
   META_DESCRIPTION_EN:
-    process.env.META_DESCRIPTION_EN ||
+    process.env.META_DESCRIPTION_EN ??
     'Gratitude is the currency of the new age. More and more people are unleashing their potential and shaping a good future for all.',
   META_KEYWORDS_DE:
-    process.env.META_KEYWORDS_DE ||
+    process.env.META_KEYWORDS_DE ??
     'Grundeinkommen, Währung, Dankbarkeit, Schenk-Ökonomie, Natürliche Ökonomie des Lebens, Ökonomie, Ökologie, Potenzialentfaltung, Schenken und Danken, Kreislauf des Lebens, Geldsystem',
   META_KEYWORDS_EN:
-    process.env.META_KEYWORDS_EN ||
+    process.env.META_KEYWORDS_EN ??
     'Basic Income, Currency, Gratitude, Gift Economy, Natural Economy of Life, Economy, Ecology, Potential Development, Giving and Thanking, Cycle of Life, Monetary System',
-  META_AUTHOR: process.env.META_AUTHOR || 'Bernd Hückstädt - Gradido-Akademie',
+  META_AUTHOR: process.env.META_AUTHOR ?? 'Bernd Hückstädt - Gradido-Akademie',
 }
 
 // Check config version
-constants.CONFIG_VERSION.CURRENT = process.env.CONFIG_VERSION || constants.CONFIG_VERSION.DEFAULT
+constants.CONFIG_VERSION.CURRENT = process.env.CONFIG_VERSION ?? constants.CONFIG_VERSION.DEFAULT
 if (
   ![constants.CONFIG_VERSION.EXPECTED, constants.CONFIG_VERSION.DEFAULT].includes(
     constants.CONFIG_VERSION.CURRENT,