diff --git a/developer/src/kmc-ldml/build.sh b/developer/src/kmc-ldml/build.sh
index 4a2fcad111..de4887dc7c 100755
--- a/developer/src/kmc-ldml/build.sh
+++ b/developer/src/kmc-ldml/build.sh
@@ -75,6 +75,11 @@ function do_build_fixtures() {
 
   # Generate a binary file from basic.txt for comparison purposes
   node ../../../common/tools/hextobin/build/hextobin.js ./test/fixtures/basic.txt ./build/test/fixtures/basic-txt.kmx
+  if ! cmp ./build/test/fixtures/basic-xml.kmx ./build/test/fixtures/basic-txt.kmx; then
+    printf "${COLOR_RED}basic-xml.kmx and basic-txt.kmx are different!${COLOR_RESET}\n"
+  else
+    printf "${COLOR_GREY}basic-xml.kmx and basic-txt.kmx are identical${COLOR_RESET}\n"
+  fi
 }
 
 builder_run_action clean           do_clean
diff --git a/developer/src/kmc-ldml/test/compiler-e2e.tests.ts b/developer/src/kmc-ldml/test/compiler-e2e.tests.ts
index bdc6ed3750..2277e1c2a1 100644
--- a/developer/src/kmc-ldml/test/compiler-e2e.tests.ts
+++ b/developer/src/kmc-ldml/test/compiler-e2e.tests.ts
@@ -1,8 +1,7 @@
 import 'mocha';
 import {assert} from 'chai';
 import hextobin from '@keymanapp/hextobin';
-import { KMXBuilder } from '@keymanapp/developer-utils';
-import {checkMessages, compileKeyboard, compilerTestCallbacks, compilerTestOptions, makePathToFixture} from './helpers/index.js';
+import {compileKeyboard, compilerTestCallbacks, compilerTestOptions, makePathToFixture} from './helpers/index.js';
 import { compareXml } from './helpers/compareXml.js';
 import { LdmlKeyboardCompiler } from '../src/compiler/compiler.js';
 import { kmxToXml } from '../src/util/serialize.js';
@@ -24,45 +23,29 @@ describe('compiler-tests', function() {
     const inputFilename = makePathToFixture('basic.xml');
     const binaryFilename = makePathToFixture('basic.txt');
 
-    // Compile the keyboard
-    const kmx = await compileKeyboard(inputFilename, {...compilerTestOptions, saveDebug: true, shouldAddCompilerVersion: false});
-    assert.isNotNull(kmx);
-
-    // Use the builder to generate the binary output file
-    const builder = new KMXBuilder(kmx, true);
-    const code = builder.compile();
-    checkMessages();
-    assert.isNotNull(code);
-
     // Compare output
     let expected = await hextobin(binaryFilename, undefined, {silent:true});
 
-    assert.deepEqual<Uint8Array>(code, expected);
-
-    // now output it again as XML
-    const outputFilename = makePathToFixture('basic-serialized.xml');
-    const asXml = kmxToXml(kmx);
-    writeFileSync(outputFilename, asXml, 'utf-8');
-
     // now compare it to use with run()
     // Let's build basic.xml
     // It should match basic.kmx (built from basic.txt)
     const k = new LdmlKeyboardCompiler();
     await k.init(compilerTestCallbacks, { ...compilerTestOptions, saveDebug: true, shouldAddCompilerVersion: false });
 
-    const { artifacts } = await k.run(inputFilename, "basic.kmx");
+    const { artifacts } = await k.run(inputFilename, "basic-xml.kmx"); // need the exact name passed to build-fixtures
+    assert.isNotNull(artifacts);
+    const { kmx, kvk  } = artifacts;
+    assert.isNotNull(kmx);
+    assert.deepEqual<Uint8Array>(kmx?.data, expected);
 
-    assert.ok(artifacts?.kmx?.data);
-
-    // TODO: Can't compare the data here, it contains an embedded .kvk file that's present above!
-    // assert.deepEqual<Uint8Array>(artifacts?.kmx?.data, expected, "output of run() did not match");
+    // TODO-LDML: compare the .kvk file to something else?
+    assert.isNotNull(kvk?.data);
   });
 
   it('should-serialize-kmx', async function() {
     this.timeout(4000);
     // Let's build basic.xml
     // It should match basic.kmx (built from basic.txt)
-
     const inputFilename = makePathToFixture('basic.xml');
 
     // Compile the keyboard
@@ -77,7 +60,6 @@ describe('compiler-tests', function() {
     compareXml(outputFilename, inputFilename);
   });
 
-
   it('should handle non existent files', async () => {
     const filename = 'DOES_NOT_EXIST.xml';
     const k = new LdmlKeyboardCompiler();
diff --git a/developer/src/kmc-ldml/test/fixtures/basic.txt b/developer/src/kmc-ldml/test/fixtures/basic.txt
index 6302a5eb27..81748b400e 100644
--- a/developer/src/kmc-ldml/test/fixtures/basic.txt
+++ b/developer/src/kmc-ldml/test/fixtures/basic.txt
@@ -72,6 +72,10 @@ block(stores)                          #  struct COMP_STORE {
   offset(store_targets_string)         #  KMX_DWORD dpString;
                                        #  };
 
+  18 00 00 00                           # TSS_VISUALKEYBOARD
+  00 00 00 00                           #  KMX_DWORD dpName;
+  offset(store_vk_path_string)               #  KMX_DWORD dpString;
+
 block(store_name_name)
   26 00 4e 00 41 00 4d 00 45 00 00 00  # '&NAME'
 block(store_name_string)
@@ -88,6 +92,8 @@ block(store_targets_name)
   26 00 54 00 41 00 52 00 47 00 45 00 54 00 53 00 00 00 # '&TARGETS'
 block(store_targets_string)
   64 00 65 00 73 00 6b 00 74 00 6f 00 70 00 00 00 # 'desktop'
+block(store_vk_path_string)
+  62 00 61 00 73 00 69 00 63 00 2d 00 78 00 6d 00 6c 00 2e 00 6b 00 76 00 6b 00 00 00 # 'basic-xml.kvk'
 
 block(sect)                         #  struct COMP_KMXPLUS_SECT {
   73 65 63 74                       #    KMX_DWORD header.ident;   // 0000 Section name