diff --git a/.gitignore b/.gitignore
index 7bdcaac..6a4c413 100644
--- a/.gitignore
+++ b/.gitignore
@@ -42,3 +42,8 @@
 !/app/assets/builds/.keep
 
 /node_modules
+
+# CREDENTIALS
+/config/credentials/development.key
+/config/credentials/development.yml.enc
+/config/credentials/production.key
diff --git a/bin/setup b/bin/setup
index d9d15d2..f2e7d2f 100755
--- a/bin/setup
+++ b/bin/setup
@@ -32,6 +32,9 @@ FileUtils.chdir APP_ROOT do
   puts "\n== Recreating database =="
   system! "bin/rails db:reset"
 
+  puts "\n== Creating development credentials =="
+  system! "bin/setup_dev_credentials"
+
   puts "\n== Removing old logs and tempfiles =="
   system! "bin/rails log:clear tmp:clear"
 
diff --git a/bin/setup_dev_credentials b/bin/setup_dev_credentials
new file mode 100755
index 0000000..effc6dc
--- /dev/null
+++ b/bin/setup_dev_credentials
@@ -0,0 +1,36 @@
+#!/bin/bash
+
+if [[ -f "config/credentials/development.yml.enc" ]]
+then
+    echo "Development credentials already exists on your filesystem."
+    echo "If you want to recreate development credentials, remove config/credentials/development.yml.enc file"
+    exit
+fi
+
+CONTENT="secret_key_base: $(rake secret)
+
+# TO IMPORT DATA FROM NINTENDO WEBSITE. (REQUIRED)
+# You can get the credentials by investigating the network requests on Nintendo's Official website.
+# nintendo_app_id: <FILL HERE>
+# nintendo_app_key: <FILL HERE>
+
+# TO ENABLE SENTRY (Error tracking & performance monitoring). (OPTIONAL)
+# sentry_dsn: <FILL HERE>
+
+# TO ENABLE PLAUSBLE (Privacy-friendly analytics). (OPTIONAL)
+# plausible_api_key: <FILL HERE>
+
+# TO ENABLE SIGN IN WITH TWITTER. (OPTIONAL)
+# twitter_app_id: <FILL HERE>
+# twitter_app_secret: <FILL HERE>
+
+# TO ENABLE SIGN IN WITH DISCORD. (OPTIONAL)
+# discord_app_id: <FILL HERE>
+# discord_app_secret: <FILL HERE>
+"
+
+EDITOR="echo \"$CONTENT\" > " rails credentials:edit --environment development
+
+echo "ATTENTION:"
+echo "Don't forget to fill nintendo_app_id and nintendo_app_key variables by running \`rails credentials:edit --environment development\`."
+echo "You can get the these credentials by investigating the network requests on Nintendo's Official website."
diff --git a/config/credentials.yml.enc b/config/credentials.yml.enc
deleted file mode 100644
index fa546a3..0000000
--- a/config/credentials.yml.enc
+++ /dev/null
@@ -1 +0,0 @@
-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--xzbbQKIdkd0RgBjv--loxoAu0+esTG/bkaoNxw/g==
\ No newline at end of file
diff --git a/config/credentials/production.yml.enc b/config/credentials/production.yml.enc
new file mode 100644
index 0000000..793e218
--- /dev/null
+++ b/config/credentials/production.yml.enc
@@ -0,0 +1 @@
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--Xjbo2w9vXMIZ89lR--EQV7b3QqV7ooyU3i+868kA==
\ No newline at end of file