diff --git a/.github/workflows/check.yaml b/.github/workflows/check.yaml
index 6088f6e..da4ea39 100644
--- a/.github/workflows/check.yaml
+++ b/.github/workflows/check.yaml
@@ -26,7 +26,7 @@ jobs:
       fail-fast: false
       matrix:
         python-version: ["3.8", "3.10"]
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
     - uses: actions/checkout@v4
       with:
@@ -53,7 +53,7 @@ jobs:
       fail-fast: false
       matrix:
         python-version: ["3.8", "3.10"]
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
     - uses: actions/checkout@v4
       with:
@@ -121,6 +121,12 @@ jobs:
 
       - name: Run tests
         run: |
+          # These variables are for a consistent method to find the charm file(s) across all projects.
+          # It is designed to work both with charms that output one file per base,
+          # and charms that output a single file to run on all bases.
+          # Not all charms will use them, and for some charms the variables will resolve to the same file.
+          export CHARM_PATH_NOBLE="$(pwd)/$(ls | grep '.*24.04.*\.charm$')"
+          echo "$CHARM_PATH_NOBLE"
           export CHARM_PATH_JAMMY="$(pwd)/$(ls | grep '.*22.04.*\.charm$')"
           echo "$CHARM_PATH_JAMMY"
           export CHARM_PATH_FOCAL="$(pwd)/$(ls | grep '.*20.04.*\.charm$')"
diff --git a/.gitignore b/.gitignore
index 8555e43..042b19d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,11 +1,45 @@
-.jujuignore
-.vscode/
-build/
-env/
-venv/
-.build/
-.venv/
-.tox/
+# This file is centrally managed as a template file in https://github.com/canonical/solutions-engineering-automation
+# To update the file:
+# - Edit it in the canonical/solutions-engineering-automation repository.
+# - Open a PR with the changes.
+# - When the PR merges, the soleng-terraform bot will open a PR to the target repositories with the changes.
+
+# Python Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# Test files and directories
+.pytest_cache/
 .coverage
-__pycache__
+.tox
+reports/
+**/report/
+htmlcov/
+.mypy_cache
+
+# python virtual environments (for local dev)
+.venv
+venv
+env
+
+# Build artefacts
+output/
+.build/
+build/
 *.charm
+*.snap
+# python build artefacts
+deb_dist/
+dist/
+*.egg-info/
+
+# Log files
+*.log
+
+# general backup files
+*~
+*.bak
+
+# Note: for editor-specific files, please don't add them here, as they are specific to your environment, not the project.
+# Instead, consider using a global gitignore on your workstation.