diff --git a/app/Commands/AwsAssumeRole.php b/app/Commands/AwsAssumeRole.php
index 3e174b5..20a1960 100644
--- a/app/Commands/AwsAssumeRole.php
+++ b/app/Commands/AwsAssumeRole.php
@@ -92,7 +92,7 @@ public function handle()
 
         $this->info("Now opening a session following you ({$sessionUser}) assuming the role {$role} on {$accountName} ({$accountId}) . Type `exit` to leave this shell.");
 
-        (new Process([config('app.shell')]))
+        (new Process([env('SHELL', 'bash')]))
             ->setEnv(array_merge($envVars, [
                 'AWS_S3_ENV' => $account['s3env'],
                 'BASH_SILENCE_DEPRECATION_WARNING' => '1',
diff --git a/app/Commands/AwsMfaLogin.php b/app/Commands/AwsMfaLogin.php
index c1e40fd..3bbed52 100644
--- a/app/Commands/AwsMfaLogin.php
+++ b/app/Commands/AwsMfaLogin.php
@@ -50,9 +50,14 @@ public function handle()
 
         $envVars = $this->helpers->aws()->iam()->authenticateWithMfaDevice($mfaDevice, $code);
 
+        if (empty($envVars)) {
+            $this->error("Unable to authenicate MFA");
+            return 1;
+        }
+
         $this->info("Now opening a session following your MFA authentication. Type `exit` to leave this shell.");
 
-        (new Process([config('app.shell')]))
+        (new Process([env('SHELL', 'bash')]))
             ->setEnv(array_merge($envVars, [
                 'BASH_SILENCE_DEPRECATION_WARNING' => '1',
                 'PS1' => "\e[32mnscli\e[34m(mfa-authd)$\e[39m ",
diff --git a/app/Commands/EditEnvironmentVariables.php b/app/Commands/EditEnvironmentVariables.php
index 1e89601..dfaeaf4 100644
--- a/app/Commands/EditEnvironmentVariables.php
+++ b/app/Commands/EditEnvironmentVariables.php
@@ -36,6 +36,8 @@ class EditEnvironmentVariables extends BaseCommand
 
     private string $fileContents;
 
+    private string $editor;
+
     public function configure()
     {
         $this->setDefinition(array_merge([
@@ -50,7 +52,9 @@ public function configure()
      */
     public function handle()
     {
-        $requiredBinaries = ['aws', config('app.editor')];
+        $this->editor = env('EDITOR', '/usr/bin/vi');
+
+        $requiredBinaries = ['aws', $this->editor];
 
         if ($this->helpers->checks()->checkAndReportMissingBinaries($requiredBinaries)) {
             exit(1);
@@ -143,7 +147,7 @@ private function editFile(): string
             case -1:
                 die('Unable to run editor');
             case 0:
-                pcntl_exec(config('app.editor'), ['/tmp/' . $this->fileName]);
+                pcntl_exec($this->editor, ['/tmp/' . $this->fileName]);
                 break;
             default:
                 pcntl_waitpid($pid, $status);
diff --git a/app/Helpers/Aws/Iam.php b/app/Helpers/Aws/Iam.php
index ee5d6eb..e819bf0 100644
--- a/app/Helpers/Aws/Iam.php
+++ b/app/Helpers/Aws/Iam.php
@@ -59,14 +59,18 @@ public function authenticateWithMfaDevice($mfaDeviceArn, $code): array
         ];
 
         try {
-            $processOutput = $this->aws->newProcess($commandOptions)
-            ->run();
+            $processOutput = $this->aws->newProcess($commandOptions)->run();
         } catch (ProcessFailed $e) {
-            $this->command->error("Unable to authenicate MFA");
-            return null;
+            return [];
         }
 
-        return json_decode($processOutput, true);
+        $result = json_decode($processOutput, true);
+
+        return [
+            'AWS_ACCESS_KEY_ID' => $result['Credentials']['AccessKeyId'],
+            'AWS_SECRET_ACCESS_KEY' => $result['Credentials']['SecretAccessKey'],
+            'AWS_SESSION_TOKEN' => $result['Credentials']['SessionToken'],
+        ];
     }
 
     public function assumeRole(int $accountId, string $role, string $sessionUser, ?string $mfaDevice = null, ?string $mfaCode = null): array
diff --git a/config/app.php b/config/app.php
index 2a04f31..4ce73b7 100644
--- a/config/app.php
+++ b/config/app.php
@@ -56,7 +56,4 @@
     'providers' => [
         App\Providers\AppServiceProvider::class,
     ],
-
-    'editor' => env('EDITOR', '/usr/bin/vi'),
-    'shell' => env('SHELL', 'bash')
 ];