setup namespace remote builder (#398)

* setup namespace remote builder

* lil more

* use nsc build for now

* load

scripts/ns_docker.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/bash
+set -e
+
+# for fast arm64 builds: https://namespace.so/docs/features/faster-builds
+
+if ! command -v nsc &> /dev/null; then
+  echo "nsc missing, install with"
+  echo ""
+  echo "curl -fsSL https://get.namespace.so/cloud/install.sh | sh"
+  exit 1
+fi
+
+nsc version update
+
+nsc docker buildx cleanup
+nsc docker buildx setup --use