diff --git a/pom.xml b/pom.xml
index 0c467092..05300b35 100644
--- a/pom.xml
+++ b/pom.xml
@@ -51,7 +51,7 @@
       <dependency>
          <groupId>com.kingsrook.qqq</groupId>
          <artifactId>qqq-backend-core</artifactId>
-         <version>0.0.0-20220628.161829-14</version>
+         <version>0.0.0-20220629.151616-15</version>
       </dependency>
 
       <!-- 3rd party deps specifically for this module -->
diff --git a/src/main/java/com/kingsrook/qqq/backend/module/filesystem/base/actions/AbstractBaseFilesystemAction.java b/src/main/java/com/kingsrook/qqq/backend/module/filesystem/base/actions/AbstractBaseFilesystemAction.java
index e5c69153..9a04f289 100644
--- a/src/main/java/com/kingsrook/qqq/backend/module/filesystem/base/actions/AbstractBaseFilesystemAction.java
+++ b/src/main/java/com/kingsrook/qqq/backend/module/filesystem/base/actions/AbstractBaseFilesystemAction.java
@@ -81,7 +81,7 @@ public abstract class AbstractBaseFilesystemAction<FILE>
    /*******************************************************************************
     ** Get a string that represents the full path to a file.
     *******************************************************************************/
-   protected abstract String getFullPathForFile(FILE file);
+   public abstract String getFullPathForFile(FILE file);
 
    /*******************************************************************************
     ** In contrast with the DeleteAction, which deletes RECORDS - this is a
@@ -105,7 +105,7 @@ public abstract class AbstractBaseFilesystemAction<FILE>
     ** and a file at /foo/bar/baz.txt
     ** give us just the baz.txt part.
     *******************************************************************************/
-   public abstract String stripBackendAndTableBasePathsFromFileName(FILE file, QBackendMetaData sourceBackend, QTableMetaData sourceTable);
+   public abstract String stripBackendAndTableBasePathsFromFileName(String filePath, QBackendMetaData sourceBackend, QTableMetaData sourceTable);
 
 
 
diff --git a/src/main/java/com/kingsrook/qqq/backend/module/filesystem/local/actions/AbstractFilesystemAction.java b/src/main/java/com/kingsrook/qqq/backend/module/filesystem/local/actions/AbstractFilesystemAction.java
index 74ddadc2..be5dd44b 100644
--- a/src/main/java/com/kingsrook/qqq/backend/module/filesystem/local/actions/AbstractFilesystemAction.java
+++ b/src/main/java/com/kingsrook/qqq/backend/module/filesystem/local/actions/AbstractFilesystemAction.java
@@ -95,7 +95,7 @@ public class AbstractFilesystemAction extends AbstractBaseFilesystemAction<File>
     ** Get a string that represents the full path to a file.
     *******************************************************************************/
    @Override
-   protected String getFullPathForFile(File file)
+   public String getFullPathForFile(File file)
    {
       return (file.getAbsolutePath());
    }
@@ -176,10 +176,10 @@ public class AbstractFilesystemAction extends AbstractBaseFilesystemAction<File>
     ** give us just the baz.txt part.
     *******************************************************************************/
    @Override
-   public String stripBackendAndTableBasePathsFromFileName(File file, QBackendMetaData backend, QTableMetaData table)
+   public String stripBackendAndTableBasePathsFromFileName(String filePath, QBackendMetaData backend, QTableMetaData table)
    {
       String tablePath    = getFullBasePath(table, backend);
-      String strippedPath = file.getAbsolutePath().replaceFirst(".*" + tablePath, "");
+      String strippedPath = filePath.replaceFirst(".*" + tablePath, "");
       return (strippedPath);
    }
 
diff --git a/src/main/java/com/kingsrook/qqq/backend/module/filesystem/processes/implementations/etl/basic/BasicETLCleanupSourceFilesFunction.java b/src/main/java/com/kingsrook/qqq/backend/module/filesystem/processes/implementations/etl/basic/BasicETLCleanupSourceFilesFunction.java
index 4e096635..f91a5b10 100644
--- a/src/main/java/com/kingsrook/qqq/backend/module/filesystem/processes/implementations/etl/basic/BasicETLCleanupSourceFilesFunction.java
+++ b/src/main/java/com/kingsrook/qqq/backend/module/filesystem/processes/implementations/etl/basic/BasicETLCleanupSourceFilesFunction.java
@@ -41,6 +41,7 @@ import com.kingsrook.qqq.backend.core.modules.interfaces.QBackendModuleInterface
 import com.kingsrook.qqq.backend.core.processes.implementations.etl.basic.BasicETLProcess;
 import com.kingsrook.qqq.backend.core.utils.StringUtils;
 import com.kingsrook.qqq.backend.module.filesystem.base.FilesystemBackendModuleInterface;
+import com.kingsrook.qqq.backend.module.filesystem.base.actions.AbstractBaseFilesystemAction;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 
@@ -56,7 +57,7 @@ public class BasicETLCleanupSourceFilesFunction implements FunctionBody
    public static final String FIELD_MOVE_OR_DELETE        = "moveOrDelete";
    public static final String FIELD_DESTINATION_FOR_MOVES = "destinationForMoves";
 
-   public static final String VALUE_MOVE   = "move";
+   public static final String VALUE_MOVE    = "move";
    public static final String VALUE_DELETE  = "delete";
    public static final String FUNCTION_NAME = "cleanupSourceFiles";
 
@@ -77,6 +78,8 @@ public class BasicETLCleanupSourceFilesFunction implements FunctionBody
       {
          throw (new QException("Backend " + table.getBackendName() + " for table " + sourceTableName + " does not support this function."));
       }
+      AbstractBaseFilesystemAction actionBase = filesystemModule.getActionBase();
+      actionBase.preAction(backend);
 
       String sourceFilePaths = runFunctionRequest.getValueString(BasicETLCollectSourceFileNamesFunction.FIELD_SOURCE_FILE_PATHS);
       if(!StringUtils.hasContent(sourceFilePaths))
@@ -91,7 +94,7 @@ public class BasicETLCleanupSourceFilesFunction implements FunctionBody
          String moveOrDelete = runFunctionRequest.getValueString(FIELD_MOVE_OR_DELETE);
          if(VALUE_DELETE.equals(moveOrDelete))
          {
-            filesystemModule.getActionBase().deleteFile(runFunctionRequest.getInstance(), table, sourceFile);
+            actionBase.deleteFile(runFunctionRequest.getInstance(), table, sourceFile);
          }
          else if(VALUE_MOVE.equals(moveOrDelete))
          {
@@ -100,9 +103,9 @@ public class BasicETLCleanupSourceFilesFunction implements FunctionBody
             {
                throw (new QException("Field [" + FIELD_DESTINATION_FOR_MOVES + "] is missing a value."));
             }
-            File   file            = new File(sourceFile);
-            String destinationPath = destinationForMoves + File.separator + file.getName();
-            filesystemModule.getActionBase().moveFile(runFunctionRequest.getInstance(), table, sourceFile, destinationPath);
+            String filePathWithoutBase = actionBase.stripBackendAndTableBasePathsFromFileName(sourceFile, backend, table);
+            String destinationPath     = destinationForMoves + File.separator + filePathWithoutBase;
+            actionBase.moveFile(runFunctionRequest.getInstance(), table, sourceFile, destinationPath);
          }
          else
          {
diff --git a/src/main/java/com/kingsrook/qqq/backend/module/filesystem/processes/implementations/filesystem/sync/FilesystemSyncFunction.java b/src/main/java/com/kingsrook/qqq/backend/module/filesystem/processes/implementations/filesystem/sync/FilesystemSyncFunction.java
index 5ca6c732..45264376 100644
--- a/src/main/java/com/kingsrook/qqq/backend/module/filesystem/processes/implementations/filesystem/sync/FilesystemSyncFunction.java
+++ b/src/main/java/com/kingsrook/qqq/backend/module/filesystem/processes/implementations/filesystem/sync/FilesystemSyncFunction.java
@@ -82,6 +82,8 @@ public class FilesystemSyncFunction implements FunctionBody
       AbstractBaseFilesystemAction     processingActionBase = processingModule.getActionBase();
       processingActionBase.preAction(processingBackend);
 
+      Integer maxFilesToSync = runFunctionRequest.getValueInteger(FilesystemSyncProcess.FIELD_MAX_FILES_TO_ARCHIVE);
+      int syncedFileCount = 0;
       for(Map.Entry<String, Object> sourceEntry : sourceFiles.entrySet())
       {
          try
@@ -98,6 +100,13 @@ public class FilesystemSyncFunction implements FunctionBody
 
                String processingPath = processingActionBase.getFullBasePath(processingTable, processingBackend);
                processingActionBase.writeFile(processingBackend, processingPath + File.separator + sourceFileName, bytes);
+               syncedFileCount++;
+
+               if(maxFilesToSync != null && syncedFileCount >= maxFilesToSync)
+               {
+                  LOG.info("Breaking after syncing " + syncedFileCount + " files");
+                  break;
+               }
             }
          }
          catch(Exception e)
@@ -119,7 +128,7 @@ public class FilesystemSyncFunction implements FunctionBody
 
       for(Object file : files)
       {
-         String fileName = actionBase.stripBackendAndTableBasePathsFromFileName(file, backend, table);
+         String fileName = actionBase.stripBackendAndTableBasePathsFromFileName(actionBase.getFullPathForFile(file), backend, table);
          rs.put(fileName, file);
       }
 
diff --git a/src/main/java/com/kingsrook/qqq/backend/module/filesystem/processes/implementations/filesystem/sync/FilesystemSyncProcess.java b/src/main/java/com/kingsrook/qqq/backend/module/filesystem/processes/implementations/filesystem/sync/FilesystemSyncProcess.java
index 37313fb2..5773630a 100644
--- a/src/main/java/com/kingsrook/qqq/backend/module/filesystem/processes/implementations/filesystem/sync/FilesystemSyncProcess.java
+++ b/src/main/java/com/kingsrook/qqq/backend/module/filesystem/processes/implementations/filesystem/sync/FilesystemSyncProcess.java
@@ -41,6 +41,9 @@ import com.kingsrook.qqq.backend.core.model.metadata.processes.QProcessMetaData;
  ** - if any files exist in the source, but not in the archive, then:
  **   - copy the file to both the archive and the processing table.
  **
+ ** The maxFilesToArchive field can be used to only sync up to that many files
+ ** (an help an initial sync, if you want to do it in smaller batches)
+ **
  ** The idea being, that the source is read-only, and we want to move files out of
  ** processing after they've been processed - and the archive is what we can have
  ** in-between the two.
@@ -49,9 +52,10 @@ public class FilesystemSyncProcess
 {
    public static final String PROCESS_NAME = "filesystem.sync";
 
-   public static final String FIELD_SOURCE_TABLE     = "sourceTable";
-   public static final String FIELD_ARCHIVE_TABLE    = "archiveTable";
-   public static final String FIELD_PROCESSING_TABLE = "processingTable";
+   public static final String FIELD_SOURCE_TABLE         = "sourceTable";
+   public static final String FIELD_ARCHIVE_TABLE        = "archiveTable";
+   public static final String FIELD_PROCESSING_TABLE     = "processingTable";
+   public static final String FIELD_MAX_FILES_TO_ARCHIVE = "maxFilesToArchive";
 
 
 
@@ -69,6 +73,7 @@ public class FilesystemSyncProcess
          .withInputData(new QFunctionInputMetaData()
             .addField(new QFieldMetaData(FIELD_SOURCE_TABLE, QFieldType.STRING))
             .addField(new QFieldMetaData(FIELD_ARCHIVE_TABLE, QFieldType.STRING))
+            .addField(new QFieldMetaData(FIELD_MAX_FILES_TO_ARCHIVE, QFieldType.INTEGER).withDefaultValue(Integer.MAX_VALUE))
             .addField(new QFieldMetaData(FIELD_PROCESSING_TABLE, QFieldType.STRING)));
 
       return new QProcessMetaData()
diff --git a/src/main/java/com/kingsrook/qqq/backend/module/filesystem/s3/actions/AbstractS3Action.java b/src/main/java/com/kingsrook/qqq/backend/module/filesystem/s3/actions/AbstractS3Action.java
index a7ae421b..21958ab7 100644
--- a/src/main/java/com/kingsrook/qqq/backend/module/filesystem/s3/actions/AbstractS3Action.java
+++ b/src/main/java/com/kingsrook/qqq/backend/module/filesystem/s3/actions/AbstractS3Action.java
@@ -175,7 +175,7 @@ public class AbstractS3Action extends AbstractBaseFilesystemAction<S3ObjectSumma
     ** Get a string that represents the full path to a file.
     *******************************************************************************/
    @Override
-   protected String getFullPathForFile(S3ObjectSummary s3ObjectSummary)
+   public String getFullPathForFile(S3ObjectSummary s3ObjectSummary)
    {
       return (s3ObjectSummary.getKey());
    }
@@ -189,10 +189,10 @@ public class AbstractS3Action extends AbstractBaseFilesystemAction<S3ObjectSumma
     ** give us just the baz.txt part.
     *******************************************************************************/
    @Override
-   public String stripBackendAndTableBasePathsFromFileName(S3ObjectSummary file, QBackendMetaData backend, QTableMetaData table)
+   public String stripBackendAndTableBasePathsFromFileName(String filePath, QBackendMetaData backend, QTableMetaData table)
    {
       String tablePath    = getFullBasePath(table, backend);
-      String strippedPath = file.getKey().replaceFirst(".*" + tablePath, "");
+      String strippedPath = filePath.replaceFirst("^/*" + stripLeadingSlash(tablePath), "");
       return (strippedPath);
    }
 
@@ -229,6 +229,7 @@ public class AbstractS3Action extends AbstractBaseFilesystemAction<S3ObjectSumma
    {
       QBackendMetaData backend    = instance.getBackend(table.getBackendName());
       String           bucketName = ((S3BackendMetaData) backend).getBucketName();
+      destination = stripLeadingSlash(stripDuplicatedSlashes(destination));
 
       getS3Utils().moveObject(bucketName, source, destination);
    }
diff --git a/src/main/java/com/kingsrook/qqq/backend/module/filesystem/s3/model/metadata/S3BackendMetaData.java b/src/main/java/com/kingsrook/qqq/backend/module/filesystem/s3/model/metadata/S3BackendMetaData.java
index 5f064b39..92dfccc1 100644
--- a/src/main/java/com/kingsrook/qqq/backend/module/filesystem/s3/model/metadata/S3BackendMetaData.java
+++ b/src/main/java/com/kingsrook/qqq/backend/module/filesystem/s3/model/metadata/S3BackendMetaData.java
@@ -22,7 +22,7 @@
 package com.kingsrook.qqq.backend.module.filesystem.s3.model.metadata;
 
 
-import com.kingsrook.qqq.backend.core.model.metadata.QSecretReader;
+import com.kingsrook.qqq.backend.core.instances.QMetaDataVariableInterpreter;
 import com.kingsrook.qqq.backend.module.filesystem.base.model.metadata.AbstractFilesystemBackendMetaData;
 import com.kingsrook.qqq.backend.module.filesystem.s3.S3BackendModule;
 
@@ -193,14 +193,15 @@ public class S3BackendMetaData extends AbstractFilesystemBackendMetaData
    /*******************************************************************************
     ** Called by the QInstanceEnricher - to do backend-type-specific enrichments.
     ** Original use case is:  reading secrets into fields (e.g., passwords).
+    ** TODO - migrate to use @InterpretableFields (and complete that impl on core side)
     *******************************************************************************/
    @Override
    public void enrich()
    {
       super.enrich();
-      QSecretReader secretReader = new QSecretReader();
-      accessKey = secretReader.readSecret(accessKey);
-      secretKey = secretReader.readSecret(secretKey);
+      QMetaDataVariableInterpreter interpreter = new QMetaDataVariableInterpreter();
+      accessKey = interpreter.interpret(accessKey);
+      secretKey = interpreter.interpret(secretKey);
    }
 
 }
diff --git a/src/main/java/com/kingsrook/qqq/backend/module/filesystem/s3/utils/S3Utils.java b/src/main/java/com/kingsrook/qqq/backend/module/filesystem/s3/utils/S3Utils.java
index adc2b374..b791d355 100644
--- a/src/main/java/com/kingsrook/qqq/backend/module/filesystem/s3/utils/S3Utils.java
+++ b/src/main/java/com/kingsrook/qqq/backend/module/filesystem/s3/utils/S3Utils.java
@@ -175,7 +175,9 @@ public class S3Utils
     *******************************************************************************/
    public void writeFile(String bucket, String key, byte[] contents)
    {
-      getAmazonS3().putObject(bucket, key, new ByteArrayInputStream(contents), new ObjectMetadata());
+      ObjectMetadata objectMetadata = new ObjectMetadata();
+      objectMetadata.setContentLength(contents.length);
+      getAmazonS3().putObject(bucket, key, new ByteArrayInputStream(contents), objectMetadata);
    }
 
 
diff --git a/src/test/java/com/kingsrook/qqq/backend/module/filesystem/processes/implementations/filesystem/sync/FilesystemSyncProcessTest.java b/src/test/java/com/kingsrook/qqq/backend/module/filesystem/processes/implementations/filesystem/sync/FilesystemSyncProcessTest.java
index 73254757..188ef71a 100644
--- a/src/test/java/com/kingsrook/qqq/backend/module/filesystem/processes/implementations/filesystem/sync/FilesystemSyncProcessTest.java
+++ b/src/test/java/com/kingsrook/qqq/backend/module/filesystem/processes/implementations/filesystem/sync/FilesystemSyncProcessTest.java
@@ -52,6 +52,8 @@ class FilesystemSyncProcessTest
    @Test
    public void test() throws Exception
    {
+      TestUtils.cleanInstanceFiles();
+
       QTableMetaData    sourceTable     = defineTable("source");
       QTableMetaData    archiveTable    = defineTable("archive");
       QTableMetaData    processingTable = defineTable("processing");
@@ -61,6 +63,7 @@ class FilesystemSyncProcessTest
       function.getInputMetaData().getFieldThrowing(FilesystemSyncProcess.FIELD_SOURCE_TABLE).setDefaultValue(sourceTable.getName());
       function.getInputMetaData().getFieldThrowing(FilesystemSyncProcess.FIELD_ARCHIVE_TABLE).setDefaultValue(archiveTable.getName());
       function.getInputMetaData().getFieldThrowing(FilesystemSyncProcess.FIELD_PROCESSING_TABLE).setDefaultValue(processingTable.getName());
+      // function.getInputMetaData().getFieldThrowing(FilesystemSyncProcess.FIELD_MAX_FILES_TO_ARCHIVE).setDefaultValue(1);
 
       QInstance qInstance = TestUtils.defineInstance();
       qInstance.addTable(sourceTable);
@@ -74,6 +77,7 @@ class FilesystemSyncProcessTest
       String basePath = ((FilesystemBackendMetaData) qInstance.getBackend(TestUtils.BACKEND_NAME_LOCAL_FS)).getBasePath();
       writeTestFile(basePath, sourceTable, "1.txt", "x");
       writeTestFile(basePath, sourceTable, "2.txt", "x");
+      // writeTestFile(basePath, sourceTable, "3.txt", "x");
       writeTestFile(basePath, archiveTable, "2.txt", "x");
 
       //////////////////////