try multiplatform build

.space.kts

@@ -24,6 +24,8 @@ job("Docker") {
             // to add a raw list of additional push arguments, use
             // extraArgsForPushCommand = listOf("...")
 
+            platform = "linux/arm64,linux/amd64"
+
             // image tags
             tags {
                 // use current job run number as a tag - '0.0.run_number'