Update Dockerfile

Dockerfile

@@ -1,26 +1,29 @@
 # syntax=docker/dockerfile:1.4
-FROM --platform=$BUILDPLATFORM tinygo/tinygo:0.39.0 AS builder
-
+FROM --platform=$BUILDPLATFORM golang:1.24.8-alpine AS builder
 ARG TARGETOS
 ARG TARGETARCH
+ARG TARGETVARIANT
 
 WORKDIR /src
-
-# Copy go modules
-COPY go.mod ./
-# TinyGo uses go modules too
-RUN tinygo mod download
+COPY go.mod go.sum ./
+RUN apk add --no-cache ca-certificates git binutils upx \
+    && go mod download
 
 COPY . .
 RUN rm -rf screenies .github
 
-# Build with TinyGo
-RUN tinygo build \
-    -o /pinata \
-    -target linux/${TARGETARCH} \
-    -opt=z \
-    -no-debug \
-    ./main.go
+RUN CGO_ENABLED=0 \
+    GOOS=${TARGETOS:-linux} \
+    GOARCH=${TARGETARCH:-amd64} \
+    go build -trimpath \
+      -ldflags="-s -w -extldflags '-static' -buildid=''" \
+      -o /pinata ./main.go
+
+# Strip out any remaining symbols
+RUN strip /pinata
+
+# Compress the binary
+RUN upx -9 /pinata
 
 FROM scratch AS runtime
 COPY --from=builder /pinata /pinata
@@ -28,8 +31,6 @@ COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certifi
 
 USER 65532
 EXPOSE 8080
-
-# Memory tuning
 ENV GOMEMLIMIT=8MiB \
     GOGC=20