diff --git a/conf/.env b/conf/.env
index 9ee654f..99ee5a6 100644
--- a/conf/.env
+++ b/conf/.env
@@ -10,11 +10,11 @@
 
 # Generate a hex-encoded 32-byte random key. You should use `openssl rand -hex 32`
 # in your terminal to generate a random value.
-SECRET_KEY=generate_a_new_key
+SECRET_KEY=53b654d84c820573dc19e86d09c4c47d44c17b32055154a0cbc75efc5aee00fb
 
 # Generate a unique random key. The format is not important but you could still use
 # `openssl rand -hex 32` in your terminal to produce this.
-UTILS_SECRET=generate_a_new_key
+UTILS_SECRET=7cbd5fbf647a8f85f06560c6dad74d2eee21fd4e1889f91dabb7dd873c7428be
 
 # For production point these at your databases, in development the default
 # should work out of the box.
@@ -57,8 +57,8 @@ AWS_S3_ACL=private
 #
 # When configuring the Client ID, add a redirect URL under "OAuth & Permissions":
 # https://<URL>/auth/slack.callback
-SLACK_KEY=get_a_key_from_slack
-SLACK_SECRET=get_the_secret_of_above_key
+SLACK_KEY=__SLACKKEY__
+SLACK_SECRET=__SLACKSECRET__
 
 # To configure Google auth, you'll need to create an OAuth Client ID at
 # => https://console.cloud.google.com/apis/credentials
diff --git a/doc/NOTES.md b/doc/NOTES.md
new file mode 100644
index 0000000..63bd012
--- /dev/null
+++ b/doc/NOTES.md
@@ -0,0 +1,3 @@
+# To start server
+
+sudo -u outline env PATH=/opt/node_n/n/versions/node/14/bin:/opt/node_n/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin yarn start
\ No newline at end of file
diff --git a/manifest.json b/manifest.json
index bd0fe78..1643bbe 100644
--- a/manifest.json
+++ b/manifest.json
@@ -54,6 +54,14 @@
                 },
                 "choices": ["fr", "en"],
                 "default": "fr"
+            },
+            {
+                "name": "slackkey",
+                "type": "string"
+            },
+            {
+                "name": "slacksecret",
+                "type": "string"
             }
         ]
     }
diff --git a/scripts/install b/scripts/install
index afec671..6ab813b 100755
--- a/scripts/install
+++ b/scripts/install
@@ -28,6 +28,8 @@ domain=$YNH_APP_ARG_DOMAIN
 path_url=$YNH_APP_ARG_PATH
 is_public=$YNH_APP_ARG_IS_PUBLIC
 language=$YNH_APP_ARG_LANGUAGE
+slackkey=$YNH_APP_ARG_SLACKKEY
+slacksecret=$YNH_APP_ARG_SLACKSECRET
 
 ### If it's a multi-instance app, meaning it can be installed several times independently
 ### The id of the app as stated in the manifest is available as $YNH_APP_ID