diff --git a/cd/__init__.py b/cd/__init__.py
index 4ea730e..a5d1bb8 100644
--- a/cd/__init__.py
+++ b/cd/__init__.py
@@ -1,10 +1,10 @@
 import os
 
+import env
+from rwx import fs, ps
+
 from cd.project import Project
 from cd.projects import Projects
-import env
-from rwx import fs
-from rwx import ps
 
 COMMANDS_PREFIX = "cd-"
 
@@ -119,9 +119,9 @@ def set_ssh(*arguments):
     if ssh_hosts:
         fs.write(known, ssh_hosts)
         os.chmod(known, 0o400)
-        cat(known)
     #
     browse(ssh)
+    cat(known)
 
 
 def open(*arguments):
diff --git a/cd/__main__.py b/cd/__main__.py
index d67667f..af676cd 100755
--- a/cd/__main__.py
+++ b/cd/__main__.py
@@ -5,14 +5,13 @@ import sys
 
 import cd
 
-
-if __name__ == '__main__':
+if __name__ == "__main__":
     command, *arguments = sys.argv
     command = os.path.basename(command)
-    if command == '__main__.py':
+    if command == "__main__.py":
         cd.set_ssh(*arguments)
         cd.install_commands(__file__)
     else:
-        command = command.replace('-', '_')
+        command = command.replace("-", "_")
         function = getattr(cd, command)
         function(*arguments)
diff --git a/cd/project.py b/cd/project.py
index d5a96d7..3ff02cd 100644
--- a/cd/project.py
+++ b/cd/project.py
@@ -1,21 +1,21 @@
 from os import path
 
 BRANCH = [
-    'GITHUB_REF_NAME',
-    'CI_COMMIT_BRANCH',
+    "GITHUB_REF_NAME",
+    "CI_COMMIT_BRANCH",
 ]
 NAME = [
-    'GITHUB_REPOSITORY',
-    'CI_PROJECT_PATH',
+    "GITHUB_REPOSITORY",
+    "CI_PROJECT_PATH",
 ]
 ROOT = [
-    'GITHUB_WORKSPACE',
-    'CI_PROJECT_DIR',
+    "GITHUB_WORKSPACE",
+    "CI_PROJECT_DIR",
 ]
 
 
 class Project:
-    def __init__(self, projects):
+    def __init__(self, projects) -> None:
         self.projects = projects
         # branch
         for variable in BRANCH:
diff --git a/cd/projects.py b/cd/projects.py
index 81fe3db..6f7c96a 100644
--- a/cd/projects.py
+++ b/cd/projects.py
@@ -1,17 +1,17 @@
 from os import path
 
 GROUP_AND_NAME = [
-    'GITHUB_REPOSITORY',
-    'CI_PROJECT_PATH',
+    "GITHUB_REPOSITORY",
+    "CI_PROJECT_PATH",
 ]
 SERVER_URL = [
-    'GITHUB_SERVER_URL',
-    'CI_SERVER_URL',
+    "GITHUB_SERVER_URL",
+    "CI_SERVER_URL",
 ]
 
 
 class Projects:
-    def __init__(self, environment):
+    def __init__(self, environment) -> None:
         self.environment = environment
         # group, name
         for variable in GROUP_AND_NAME: