diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index 58a7bf2..c83ec81 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -1,6 +1,8 @@
 name: Build and deploy
 
-on: [push]
+on:
+    push:
+    pull_request:
 
 env:
     source-directory: $GITHUB_WORKSPACE
@@ -23,7 +25,7 @@ jobs:
         steps:
 
             - name: Checkout Campo
-              uses: actions/checkout@v3
+              uses: actions/checkout@v4
 
             - name: configure system
               run: |
@@ -32,7 +34,7 @@ jobs:
                   # sudo apt-get autoremove
                   sudo apt-get --yes install lftp
 
-            - uses: conda-incubator/setup-miniconda@v2
+            - uses: conda-incubator/setup-miniconda@v3
               with:
                   activate-environment: campo
                   environment-file: environment/configuration/conda_environment.yaml
@@ -50,6 +52,7 @@ jobs:
                   rm -f package/dist/*gz
 
             - name: Deploy wheel
+              if: github.repository == 'computationalgeography/campo'
               run: |
                   mkdir -p $HOME/.ssh
                   echo "HostKeyAlgorithms ssh-rsa" >> $HOME/.ssh/config
@@ -59,12 +62,13 @@ jobs:
                   lftp -c "open --user ${{ env.ftp_username }} --password ${{ env.ftp_password }} -p ${{ env.ftp_port }} ${{ env.ftp_server }};set sftp:auto-confirm yes;set ssl:verify-certificate false;mirror --verbose --reverse --continue package/dist/ ${{ env.remote_dir2 }}"
 
             - name: Deploy documentation
-              if: github.ref == 'refs/heads/master'
+              if: github.repository == 'computationalgeography/campo' && github.ref == 'refs/heads/master'
               run: |
                   cd ${{ env.build-directory }}
                   # lftp -c "open --user ${{ env.ftp_username }} --password ${{ env.ftp_password }} -p ${{ env.ftp_port }} ${{ env.ftp_server }};set sftp:auto-confirm yes;set ssl:verify-certificate false;mirror --verbose --reverse --continue --parallel=2 documentation/_build/ ${{ env.remote_dir1 }}"
 
             - name: Deploy development documentation
+              if: github.repository == 'computationalgeography/campo'
               run: |
                   cd ${{ env.build-directory }}
                   lftp -c "open --user ${{ env.ftp_username }} --password ${{ env.ftp_password }} -p ${{ env.ftp_port }} ${{ env.ftp_server }};set sftp:auto-confirm yes;set ssl:verify-certificate false;mirror --verbose --reverse --continue --parallel=2 documentation/_build/ ${{ env.remote_dir3 }}"
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 0000000..34ef398
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,43 @@
+# Contributing to Campo
+
+Thanks for your time and willingness to contribute to Campo! This page gives a few guidelines:
+
+
+**Reporting issues**
+
+If you have found a bug in the Campo software (or any other erroneous behaviour) please file a bug report.
+Bugs are tracked on our GitHub [issue](https://github.com/computationalgeography/campo/issues) page.
+To allow us to reproduce the issue please provide as much information as possible such that we can reproduce the bug:
+
+- The Campo version and the Python version used.
+- Details about the operating system used.
+- The description of the problem in as much detail as possible.
+- If possible, a minimal working example and zip or archive file with all data and scripts.
+
+**Solving issues**
+
+If you find an issue to work on, you are welcome to open a pull request with a fix.
+
+**Pull requests**
+
+In case you can provide a code fix yourself or want to contribute additional functionality to Campo please consider submitting a [pull](https://github.com/computationalgeography/campo/pulls) request.
+
+For something that is bigger than a trivial fix follow these steps:
+
+1. Create an issue describing the changes you intend to make.
+2. Create your own fork of the Campo code, or make sure it is in sync with the upstream project.
+3. Create a branch with the corresponding issue number.
+4. Switch to that branch.
+5. Apply your modifications.
+6. Ensure cross-platform compatibility; for Linux, Mac, and Windows. Preferably provide unit tests as well.
+
+Enable the checkbox to allow maintainer edits so the branch can be updated for a merge.
+Once you submit your PR, a Campo team member will review your proposal.
+We may ask questions, request additional information or may ask for changes to be made before a PR can be merged.
+
+All contributions to this project will be released under the MIT license.
+By submitting a pull request:
+
+- You are agreeing to comply with the waiver of your copyright interest.
+- You state that the contribution was created in whole by you and you have the right to submit it.
+