diff --git a/README.md b/README.md
index a0a2952..d6d2934 100644
--- a/README.md
+++ b/README.md
@@ -22,6 +22,15 @@ Our convention 4 kubernetes c4k-* tools combine the advantages of both approache
 ## Usage
 
 
+## Refactoring & Module Overview
+
+| Module           | Version | common postgres | frontend script | provider adapter |
+|------------------|---------|:---------------:|:---------------:|:----------------:|
+| c4k-mastodon-bot | 0.1     |       -         |                 |                  |
+| c4k-keycloak     | 0.2     |                 |                 |                  |
+| c4k-jira         | 1.0     |       x         |       x         |                  |
+| c4k-nextcloud    | 0.1     |                 |                 |                  |
+
 ## License
 
 Copyright © 2021 meissa GmbH
diff --git a/doc/Releasing.md b/doc/Releasing.md
index df84f9e..8aeea73 100644
--- a/doc/Releasing.md
+++ b/doc/Releasing.md
@@ -1,7 +1,7 @@
 # stable release (should be done from master)
 
 ```
-#adjust [version]
+#adjust [version] and remove the -SNAPSHOT
 vi project-cljs.clj
 
 lein release
diff --git a/project-cljs.clj b/project-cljs.clj
index 0a17342..7456352 100644
--- a/project-cljs.clj
+++ b/project-cljs.clj
@@ -1,4 +1,4 @@
-(defproject org.domaindrivenarchitecture/c4k-common-cljs "0.2.11-SNAPSHOT"
+(defproject org.domaindrivenarchitecture/c4k-common-cljs "0.3.1-SNAPSHOT"
   :description "Contains predicates and tools for c4k"
   :url "https://domaindrivenarchitecture.org"
   :license {:name "Apache License, Version 2.0"
diff --git a/project.clj b/project.clj
index 3424335..acf22c2 100644
--- a/project.clj
+++ b/project.clj
@@ -1,4 +1,8 @@
+<<<<<<< HEAD
 (defproject org.domaindrivenarchitecture/c4k-common-clj "0.2.11"
+=======
+(defproject org.domaindrivenarchitecture/c4k-common-clj "0.3.1-SNAPSHOT"
+>>>>>>> 8b5c33183cbe8e324b69ee5150f5cc40add9a2b4
   :description "Contains predicates and tools for c4k"
   :url "https://domaindrivenarchitecture.org"
   :license {:name "Apache License, Version 2.0"
@@ -20,7 +24,6 @@
                     :dependencies [[dda/data-test "0.1.1"]]}
              :dev {:plugins [[lein-shell "0.5.0"]]}}
   :release-tasks [["test"]
-                  ["vcs" "assert-committed"]
                   ["change" "version" "leiningen.release/bump-version" "release"]
                   ["vcs" "commit"]
                   ["vcs" "tag"]
diff --git a/src/main/cljc/dda/c4k_common/postgres.cljc b/src/main/cljc/dda/c4k_common/postgres.cljc
index 8ef0a06..b7a7738 100644
--- a/src/main/cljc/dda/c4k_common/postgres.cljc
+++ b/src/main/cljc/dda/c4k_common/postgres.cljc
@@ -4,16 +4,24 @@
    #?(:cljs [shadow.resource :as rc])
    [dda.c4k-common.yaml :as yaml]
    [dda.c4k-common.base64 :as b64]
-   [dda.c4k-common.common :as cm]))
+   [dda.c4k-common.prefixes :as cm]))
+
+(defn postgres-size?
+  [input]
+  (contains? #{:2gb :4gb :8gb :16gb} input))
 
 (s/def ::postgres-db-user cm/bash-env-string?)
 (s/def ::postgres-db-password cm/bash-env-string?)
 (s/def ::postgres-data-volume-path string?)
+(s/def ::postgres-size postgres-size?)
 
 #?(:cljs
    (defmethod yaml/load-resource :postgres [resource-name]
      (case resource-name
-       "postgres/config.yaml" (rc/inline "postgres/config.yaml")
+       "postgres/config-2gb.yaml" (rc/inline "postgres/config-2gb.yaml")
+       "postgres/config-4gb.yaml" (rc/inline "postgres/config-4gb.yaml")
+       "postgres/config-8gb.yaml" (rc/inline "postgres/config-8gb.yaml")
+       "postgres/config-16gb.yaml" (rc/inline "postgres/config-16gb.yaml")
        "postgres/deployment.yaml" (rc/inline "postgres/deployment.yaml")
        "postgres/persistent-volume.yaml" (rc/inline "postgres/persistent-volume.yaml")
        "postgres/pvc.yaml" (rc/inline "postgres/pvc.yaml")
@@ -21,8 +29,10 @@
        "postgres/service.yaml" (rc/inline "postgres/service.yaml")
        (throw (js/Error. "Undefined Resource!")))))
 
-(defn generate-config []
-  (yaml/from-string (yaml/load-resource "postgres/config.yaml")))
+(defn generate-config [& args]
+  (let [{:keys [postgres-size]
+         :or {postgres-size :2gb}} args]
+    (yaml/from-string (yaml/load-resource (str "postgres/config-" (name postgres-size) ".yaml")))))
 
 (defn generate-deployment []
   (yaml/from-string (yaml/load-resource "postgres/deployment.yaml")))
diff --git a/src/main/resources/postgres/config.yaml b/src/main/resources/postgres/config-16gb.yaml
similarity index 89%
rename from src/main/resources/postgres/config.yaml
rename to src/main/resources/postgres/config-16gb.yaml
index e2c62d5..fc32eee 100644
--- a/src/main/resources/postgres/config.yaml
+++ b/src/main/resources/postgres/config-16gb.yaml
@@ -5,7 +5,7 @@ metadata:
   labels:
     app: postgres
 data:
-  postgres-db: jira
   postgresql.conf: |
     max_connections = 1000
+    work_mem = 4MB
     shared_buffers = 512MB
diff --git a/src/main/resources/postgres/config-2gb.yaml b/src/main/resources/postgres/config-2gb.yaml
new file mode 100644
index 0000000..3bcba85
--- /dev/null
+++ b/src/main/resources/postgres/config-2gb.yaml
@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: postgres-config
+  labels:
+    app: postgres
+data:
+  postgresql.conf: |
+    max_connections = 100
+    work_mem = 4MB
+    shared_buffers = 128MB
diff --git a/src/main/resources/postgres/config-4gb.yaml b/src/main/resources/postgres/config-4gb.yaml
new file mode 100644
index 0000000..ec36a3f
--- /dev/null
+++ b/src/main/resources/postgres/config-4gb.yaml
@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: postgres-config
+  labels:
+    app: postgres
+data:
+  postgresql.conf: |
+    max_connections = 500
+    work_mem = 2MB
+    shared_buffers = 256MB
diff --git a/src/main/resources/postgres/config-8gb.yaml b/src/main/resources/postgres/config-8gb.yaml
new file mode 100644
index 0000000..4bd9837
--- /dev/null
+++ b/src/main/resources/postgres/config-8gb.yaml
@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: postgres-config
+  labels:
+    app: postgres
+data:
+  postgresql.conf: |
+    max_connections = 700
+    work_mem = 3MB
+    shared_buffers = 512MB
diff --git a/src/test/cljc/dda/c4k_common/postgres_test.cljc b/src/test/cljc/dda/c4k_common/postgres_test.cljc
index de5f0f1..6f79342 100644
--- a/src/test/cljc/dda/c4k_common/postgres_test.cljc
+++ b/src/test/cljc/dda/c4k_common/postgres_test.cljc
@@ -4,6 +4,15 @@
       :cljs [cljs.test :refer-macros [deftest is are testing run-tests]])
    [dda.c4k-common.postgres :as cut]))
 
+(deftest should-generate-config
+  (is (= {:postgresql.conf
+          "max_connections = 100\nwork_mem = 4MB\nshared_buffers = 128MB\n"}
+         (:data (cut/generate-config))))
+  (is (= {:postgresql.conf
+          "max_connections = 700\nwork_mem = 3MB\nshared_buffers = 512MB\n"}
+         (:data (cut/generate-config :postgres-size :8gb))))
+  )
+
 (deftest should-generate-persistent-volume
   (is (= {:kind "PersistentVolume"
           :apiVersion "v1"