diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index 3a742db..554e591 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -50,7 +50,11 @@ jobs:
         uses: actions/checkout@v4
         with:
           repository: bec/csaxs_bec
-          ref: "${{ inputs.BEC_PLUGIN_REPO_BRANCH || github.head_ref || github.sha }}"
+          # For pull_request events github.sha is the test-merge commit, which
+          # lives in the base repo, so this works for fork PRs too. Using
+          # github.head_ref here would try to fetch the fork's branch name from
+          # bec/csaxs_bec, where it does not exist -> checkout fails (exit 1).
+          ref: "${{ inputs.BEC_PLUGIN_REPO_BRANCH || github.sha }}"
           path: ./csaxs_bec
 
       - name: Lint for merge conflicts from template updates
diff --git a/docs/assets/safety-at-csaxs.pdf b/docs/assets/safety-at-csaxs.pdf
new file mode 100644
index 0000000..ca413b8
Binary files /dev/null and b/docs/assets/safety-at-csaxs.pdf differ
diff --git a/docs/index.md b/docs/index.md
index b3503c9..85dd535 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -44,6 +44,7 @@ hidden: true
 ---
 
 introduction/introduction
+safety/safety
 user/user
 developer/developer
 api_reference/api_reference
diff --git a/docs/safety/safety.md b/docs/safety/safety.md
new file mode 100644
index 0000000..a846d1f
--- /dev/null
+++ b/docs/safety/safety.md
@@ -0,0 +1,48 @@
+(safety)=
+
+# Safety at cSAXS
+
+Working safely at the beamline is everyone's responsibility. All activities must
+be conducted such that they are safe for anyone present — even people not familiar
+with the ongoing work. Please read this page and the full checklist before
+starting your experiment, and discuss any safety-related question with your local
+contact.
+
+```{important}
+**No experiment may be conducted before the signed Safety Declaration form has
+been handed to your local contact.** Every person working at the beamline must be
+named on that form. Violations result in the immediate termination of the
+experiment.
+
+📄 **[Open the Safety Declaration form (PDF)](https://www.psi.ch/en/media/58834/download)**
+```
+
+```{admonition} In an emergency
+:class: danger
+
+- **Call 3333** — be ready to state *Who? What? When? Where?*
+- Know the location of the nearest **emergency exit**, **fire extinguisher**,
+  **emergency shower / eye wash**, and **first-aid kit**.
+- Never hesitate to ask your local contact for advice or help.
+```
+
+## Safety checklist (printable PDF)
+
+Your local contact will go through the *Safety at cSAXS* checklist with you, covering emergencies, general behaviour,
+working inside the hutch, and experiment safety.  It is available as a printable PDF.
+
+{download}`⬇ Download the "Safety at cSAXS" checklist (PDF) <../assets/safety-at-csaxs.pdf>`
+
+## Key safety links
+
+Note that some of the links below point to the PSI **intranet** and are only reachable from within the PSI network or via your local contact.
+
+| Resource | Link |
+| --- | --- |
+| **Safety Declaration form** (sign and return before the experiment) | <https://www.psi.ch/en/media/58834/download> |
+| User Office — Safety Guidelines | <https://www.psi.ch/en/useroffice/safety-at-psi> |
+| Safety@PSI portal *(intranet)* | <https://intranet.psi.ch/Safety/WebHome> |
+| PSI Safety Specialists — contact via your local contact *(intranet)* | <https://intranet.psi.ch/Safety/SafetyContactsENCategory> |
+| Behaviour during a gas / fire alarm *(intranet)* | <https://intranet.psi.ch/pub/Safety/GasMonitoringCategory/Merkblatt_Verhalten_bei_Gas-Brandalarm_.pdf> |
+
+If anything is unclear, discuss it with your local contact, who can in turn seek advice from the PSI safety specialists.