So it's not in the repos...

.forgejo/workflows/ci.yaml

@@ -61,7 +61,7 @@ jobs:
         uses: docker/build-push-action@v5
         with:
           push: true
-          file: Dockerfile.fat-ssh
+          file: Dockerfile.faircamp-rsync
           tags: git.martyn.berlin/martyn/rsync-faircamp:latest
   macless-haystack-web:
     runs-on: docker

Dockerfile.rsync-faircamp

@@ -1,3 +1,4 @@
 FROM debian:13
 
-RUN apt update && apt install faircamp rsync -y
+RUN apt update && apt install rsync wget -y
+RUN wget -O/tmp/faircamp.deb https://simonrepp.com/faircamp/packages/faircamp_1.6.0-1+deb12_amd64.deb && dpkg -i /tmp/faircamp.deb ; apt install -f