diff --git a/Dockerfile b/Dockerfile
index 3c6458a..97093ed 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,4 @@
-FROM ghcr.io/lambda-feedback/evaluation-function-base/wolfram:latest AS final
-
-# Use the WSTP server as a kernel backend
-ENV WSTP_SERVER="true"
+FROM ghcr.io/lambda-feedback/evaluation-function-base/wolfram:latest as base
 
 # Command to start the evaluation function with
 ENV FUNCTION_COMMAND="wolframscript"
@@ -12,22 +9,17 @@ ENV FUNCTION_ARGS="-f,/app/evaluation_function.wl"
 # Interface to use for the evaluation function
 ENV FUNCTION_INTERFACE="file"
 
+ENV LOG_LEVEL="DEBUG"
+
 # Copy the evaluation function to the app directory
 COPY ./evaluation_function.wl /app/evaluation_function.wl
 
-# Final layer for private images, which contains the wolfram licence key,
-# and is started with the shimmy handle command.
-FROM final AS final-private
-
-# Copy the mathpass secret to the Wolfram Engine licensing directory.
-# See https://hub.docker.com/r/wolframresearch/wolframengine for more information.
-RUN --mount=type=secret,id=mathpass \
-    mkdir -p /tmp/home/.WolframEngine/Licensing && \
-    cp /run/secrets/mathpass /tmp/home/.WolframEngine/Licensing/mathpass
-
+FROM base AS with-license
+COPY ./dist/LICENCE.txt /home/wolframengine/.WolframEngine/Licensing/mathpass
 
-RUN apt-get update && apt-get install -y \
-    netcat \
-    && rm -rf /var/lib/apt/lists/*
+FROM base AS without-license
+# no COPY, no error
 
-COPY ./entrypoint.sh /entrypoint.sh
\ No newline at end of file
+# Choose final stage with build arg
+ARG WITH_LICENSE=false
+FROM ${WITH_LICENSE:+with-license}${WITH_LICENSE:-without-license}
\ No newline at end of file
diff --git a/config.json b/config.json
index d13fa81..32d7442 100644
--- a/config.json
+++ b/config.json
@@ -1,3 +1,3 @@
 {
-  "EvaluationFunctionName": ""
+  "EvaluationFunctionName": "wolframEvaluationFunction"
 }
diff --git a/evaluation_function.wl b/evaluation_function.wl
index 7862ce6..d0d573d 100644
--- a/evaluation_function.wl
+++ b/evaluation_function.wl
@@ -3,6 +3,7 @@
 (* The basic evaluation function code*)
 
 equalQNumeric[answer_, response_, params_] := Module[{tolerance},
+  Print["Evaluating Equal Numeric"];
   tolerance = If[Lookup[params, "tolerance_is_absolute", False],
     Lookup[params, "tolerance", 0],
     Lookup[params, "tolerance", 0] * answer
@@ -15,6 +16,7 @@ equalQNumeric[answer_, response_, params_] := Module[{tolerance},
 ]
 
 equalQOther[answer_, response_, params_] := Module[{correctQ},
+  Print["Evaluating Equal Other"];
   <|
     "error" -> Null,
     "is_correct" -> TrueQ[answer == response]
@@ -111,11 +113,13 @@ StructureMatchQ[response_, answerTemplate_, namedVariables_,
     Atomic -> OptionValue[Atomic]]]]
 
 equalQStructure[answer_, response_, params_] := Module[{namedVariables,correctQ},
+  Print["Evaluating Structure"];
 	namedVariables = ToExpression[Lookup[params,"named_variables",{}],TraditionalForm];
 	correctQ = StructureMatchQ[
 		ToExpression[ToString[response],TraditionalForm],
 		ToExpression[ToString[answer],TraditionalForm],
 		namedVariables];
+
 	<|
 		"error" -> Null,
 		"is_correct" -> correctQ
@@ -124,9 +128,9 @@ equalQStructure[answer_, response_, params_] := Module[{namedVariables,correctQ}
 
 (* The evaluation function itself *)
 
-evalQ[answer_, response_, params_] := Module[{},
+evalQ[type_, answer_, response_, params_] := Module[{},
   Which[
-	Lookup[params,"equality_test","None"] == "structure",
+	type == "structure",
 	equalQStructure[answer,response,params],
 	NumericQ[answer],
     equalQNumeric[answer, response, params],
@@ -135,14 +139,41 @@ evalQ[answer_, response_, params_] := Module[{},
   ]
 ];
 
-EvaluationFunction[answer_, response_, params_] := Module[{tolerance, correctQ, error},
-  result = evalQ[answer, response, params];
-  <|
-    "is_correct" -> result["is_correct"],
-    "feedback" -> If[result["is_correct"],
+EvaluationFunction[type_, answer_, response_, params_] := Module[{tolerance, correctQ, error},
+  Print["Running Evaluation Function"];
+  result = evalQ[type, answer, response, params];
+  Print["Results"];
+  Print[result];
+  feedback = If[result["is_correct"],
       Lookup[params, "correct_response_feedback", "Correct!"],
       Lookup[params, "incorrect_response_feedback", "Incorrect!"]
-    ],
-    "error" -> result["error"]
+      ];
+  <|
+        "command" -> "eval",
+        "result" -> <|
+          "is_correct" -> result["is_correct"],
+          "feedback" -> feedback,
+          "error" -> result["error"]
+        |>
   |>
 ];
+
+evalQuestionIO = Function[
+  Module[{jsonData, result},
+    jsonData = Import[#1, "JSON"] //. List :> Association;
+    requestData = jsonData["params"];
+    answer = requestData["answer"];
+    response = requestData["response"];
+    params = requestData["params"];
+    type = params["comparisonType"];
+    Print["Evaluating Response Against Answer"];
+    result = EvaluationFunction[type, answer, response, params];
+    Print["Response"];
+    Print[result];
+    Export[#2, result, "JSON", "Compact" -> True]
+  ]
+];
+
+argv = Rest[$ScriptCommandLine];
+evalQuestionIO[argv[[1]], argv[[2]]]
+
diff --git a/structure_match_example1.json b/structure_match_example1.json
index e826b45..1a11877 100644
--- a/structure_match_example1.json
+++ b/structure_match_example1.json
@@ -1,10 +1,13 @@
 {
-	"comparisonType":"structure",
-	"answerTemplate":"Sin[p x + q]",
+  "method": "eval",
+  "params": {
+    "answer":"Sin[p x + q]",
 	"response":"Sin[a x + b]",
 	"params":{
+		"comparisonType":"structure",
 		"named_variables":"{x}",
 		"correct_response_feedback":"Your answer is correct!",
 		"incorrect_response_feedback":"Your answer is incorrect!"
 	}
-}
\ No newline at end of file
+  }
+}