Reduce memory usage again

How itty can we go?

Dockerfile

@@ -1,36 +1,27 @@
 # syntax=docker/dockerfile:1.4
-#
-# Multi-arch build (use BuildKit/docker buildx). Produces a tiny scratch image.
-#
 FROM --platform=$BUILDPLATFORM golang:1.24.8-alpine AS builder
 ARG TARGETOS
 ARG TARGETARCH
 ARG TARGETVARIANT
 
 WORKDIR /src
-
-# Cache deps
 COPY go.mod ./
 RUN apk add --no-cache ca-certificates git && go mod download
 
-# Copy sources and build a tiny static binary for the target platform
 COPY . .
-# Build static binary; CGO disabled so we can use scratch
 RUN CGO_ENABLED=0 \
     GOOS=${TARGETOS:-linux} \
     GOARCH=${TARGETARCH:-amd64} \
-    go build -trimpath -ldflags="-s -w" -o /pinata ./main.go
+    go build -trimpath \
+      -ldflags="-s -w -extldflags '-static' -buildid=''" \
+      -gcflags="all=-l" \
+      -o /pinata ./main.go
 
-# Final stage: minimal runtime
 FROM scratch AS runtime
-# copy binary
 COPY --from=builder /pinata /pinata
-# copy CA bundle so TLS works
 COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
-
-# run as a non-root numeric UID (no passwd required in scratch)
 USER 65532
-
 EXPOSE 8080
-
+ENV GOMEMLIMIT=8MiB \
+    GOGC=20
 ENTRYPOINT ["/pinata"]