diff --git a/.github/workflows/greetings.yml b/.github/workflows/greetings.yml
new file mode 100644
index 0000000..4677434
--- /dev/null
+++ b/.github/workflows/greetings.yml
@@ -0,0 +1,16 @@
+name: Greetings
+
+on: [pull_request_target, issues]
+
+jobs:
+  greeting:
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      pull-requests: write
+    steps:
+    - uses: actions/first-interaction@v1
+      with:
+        repo-token: ${{ secrets.GITHUB_TOKEN }}
+        issue-message: "Message that will be displayed on users' first issue"
+        pr-message: "Message that will be displayed on users' first pull request"
diff --git a/.github/workflows/python-nose.yml b/.github/workflows/python-nose.yml
index f50887f..36d7124 100644
--- a/.github/workflows/python-nose.yml
+++ b/.github/workflows/python-nose.yml
@@ -1,8 +1,6 @@
 name: Unittest
 
-on:
-  push:
-    branches: [ "main", "modellevel", "preslevel" ]
+on: [push, pull_request_target, issues]
     
 jobs:
   build-linux:
diff --git a/.jenkins/Jenkinsfile b/.jenkins/Jenkinsfile
new file mode 100644
index 0000000..23d7b08
--- /dev/null
+++ b/.jenkins/Jenkinsfile
@@ -0,0 +1,29 @@
+pipeline {
+  agent any
+  stages {
+    stage('Install pip') {
+      steps {
+        //sh 'wget -q -O - https://pkg.jenkins.io/debian-stable/jenkins.io.key | gpg --dearmor | sudo tee /usr/share/keyrings/jenkins-archive-keyring.gpg > /dev/null'
+        sh 'sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 5BA31D57EF5975CA'
+        sh 'apt-get update && apt-get install -y python3-pip'
+      }
+    }
+    stage('Install Requirements') {
+      steps {
+        sh 'pip3 install --upgrade pip' // sh means bash
+        sh 'pip3 install -r requirements.txt'
+      }
+    }
+    stage('version') {
+      steps {
+        sh 'python3 --version'
+      }
+    }
+    stage('Run nose2') {
+      steps {
+        sh 'export PYTHONPATH=$(pwd) && cd $(pwd)/test && nose2'
+      }
+    }
+  // Add more stages as needed
+  }
+}
diff --git a/src/utilitylib.py b/src/utilitylib.py
index 529c01c..09b81f0 100644
--- a/src/utilitylib.py
+++ b/src/utilitylib.py
@@ -25,7 +25,7 @@ def datum(leadtime, start, datetime_obj):
 # ---------------------------------------------------------------------------------------------------------------------
 
 
-def load_yaml(yaml_file, yaml_path='./'):
+def load_yaml(yaml_file, yaml_path='.'):
     """
     Parameters:
     -----------