diff --git a/plugins/community/sudorandom-connect-openapi/v0.21.3/.dockerignore b/plugins/community/sudorandom-connect-openapi/v0.21.3/.dockerignore
new file mode 100644
index 000000000..5d0f124ff
--- /dev/null
+++ b/plugins/community/sudorandom-connect-openapi/v0.21.3/.dockerignore
@@ -0,0 +1,2 @@
+*
+!Dockerfile
diff --git a/plugins/community/sudorandom-connect-openapi/v0.21.3/Dockerfile b/plugins/community/sudorandom-connect-openapi/v0.21.3/Dockerfile
new file mode 100644
index 000000000..a1fa449bd
--- /dev/null
+++ b/plugins/community/sudorandom-connect-openapi/v0.21.3/Dockerfile
@@ -0,0 +1,15 @@
+# syntax=docker/dockerfile:1.19
+FROM --platform=$BUILDPLATFORM golang:1.25.3-bookworm AS build
+
+ARG TARGETOS TARGETARCH
+ENV CGO_ENABLED=0 GOOS=$TARGETOS GOARCH=$TARGETARCH
+
+RUN --mount=type=cache,target=/go/pkg/mod \
+    go install -ldflags "-s -w" -tags remote_plugin -trimpath github.com/sudorandom/protoc-gen-connect-openapi@v0.21.3 \
+ && mv /go/bin/${GOOS}_${GOARCH}/protoc-gen-connect-openapi /go/bin/protoc-gen-connect-openapi || true
+
+FROM scratch
+COPY --from=build --link /etc/passwd /etc/passwd
+COPY --from=build --link --chown=root:root /go/bin/protoc-gen-connect-openapi .
+USER nobody
+ENTRYPOINT [ "/protoc-gen-connect-openapi" ]
diff --git a/plugins/community/sudorandom-connect-openapi/v0.21.3/buf.plugin.yaml b/plugins/community/sudorandom-connect-openapi/v0.21.3/buf.plugin.yaml
new file mode 100644
index 000000000..14a8b3090
--- /dev/null
+++ b/plugins/community/sudorandom-connect-openapi/v0.21.3/buf.plugin.yaml
@@ -0,0 +1,7 @@
+version: v1
+name: buf.build/community/sudorandom-connect-openapi
+plugin_version: v0.21.3
+source_url: https://github.com/sudorandom/protoc-gen-connect-openapi
+description: Plugin for generating OpenAPIv3 from Protobufs matching the Connect RPC interface.
+spdx_license_id: MIT
+license_url: https://github.com/sudorandom/protoc-gen-connect-openapi/blob/v0.21.3/LICENSE
diff --git a/tests/testdata/buf.build/community/sudorandom-connect-openapi/v0.21.3/eliza/plugin.sum b/tests/testdata/buf.build/community/sudorandom-connect-openapi/v0.21.3/eliza/plugin.sum
new file mode 100644
index 000000000..7dcdaef3b
--- /dev/null
+++ b/tests/testdata/buf.build/community/sudorandom-connect-openapi/v0.21.3/eliza/plugin.sum
@@ -0,0 +1 @@
+h1:hoDQv39ijB2GCqQTnGlgVj1q8JPDB9lmQkY0WUmE+Qc=
diff --git a/tests/testdata/buf.build/community/sudorandom-connect-openapi/v0.21.3/petapis/plugin.sum b/tests/testdata/buf.build/community/sudorandom-connect-openapi/v0.21.3/petapis/plugin.sum
new file mode 100644
index 000000000..00e6d40b1
--- /dev/null
+++ b/tests/testdata/buf.build/community/sudorandom-connect-openapi/v0.21.3/petapis/plugin.sum
@@ -0,0 +1 @@
+h1:tXvqQAI2yeM8+7VlRR4LY5WOPVz6elhwUNQjC7wJpeM=