Pass platform properly.

Author: viferga

.github/workflows/ci.yml

@@ -61,6 +61,7 @@ jobs:
             --platform linux/${{ matrix.arch }} \
             --privileged \
             --name tmp \
+            -e TARGETPLATFORM="linux/${{ matrix.arch }}" \
             metacall/distributable_linux /metacall/scripts/deps.sh
           docker commit tmp metacall/distributable_linux
           docker rm -f tmp

scripts/deps.sh

@@ -32,9 +32,7 @@ git checkout e0951349603581895e0ba61f0e7410368ea1902a # Fix nonguix version
 apk del git-deps
 
 # Build (i386 workaround for NodeJS)
-architecture=$(uname -m)
-
-if [[ "$architecture" == "i386" || "$architecture" == "i686" ]]; then
+if [[ "${TARGETPLATFORM:-}" == "linux/386" ]]; then
     guix install --fallback --without-tests=node node-lts
     guix install --fallback --without-tests=node-lts libnode
 fi