diff --git a/Makefile b/Makefile
index 3631865..3233429 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 PROJECT_ROOT = $(dir $(abspath $(lastword $(MAKEFILE_LIST))))
 
-OBJS = grendel.o
+OBJS = naegling.o
 
 ifeq ($(BUILD_MODE),debug)
 	CFLAGS += -g -O0
@@ -9,17 +9,17 @@ else ifeq ($(BUILD_MODE),run)
 else ifeq ($(BUILD_MODE),profile)
 	CFLAGS += -g -pg -fprofile-arcs -ftest-coverage
 	LDFLAGS += -pg -fprofile-arcs -ftest-coverage
-	EXTRA_CLEAN += grendel.gcda grendel.gcno $(PROJECT_ROOT)gmon.out
-	EXTRA_CMDS = rm -rf grendel.gcda
+	EXTRA_CLEAN += naegling.gcda naegling.gcno $(PROJECT_ROOT)gmon.out
+	EXTRA_CMDS = rm -rf naegling.gcda
 else
     $(error Build mode $(BUILD_MODE) not supported by this Makefile)
 endif
 
 SRC_DIR=$(PROJECT_ROOT)/src/c
 
-all:	grendel
+all:	naegling
 
-grendel:	$(OBJS)
+naegling:	$(OBJS)
 	$(CXX) $(LDFLAGS) -o $@ $^
 	$(EXTRA_CMDS)
 
@@ -30,4 +30,4 @@ grendel:	$(OBJS)
 	$(CC) -c $(CFLAGS) $(CPPFLAGS) -o $@ $<
 
 clean:
-	rm -fr grendel $(OBJS) $(EXTRA_CLEAN)
+	rm -fr naegling $(OBJS) $(EXTRA_CLEAN)
diff --git a/README.md b/README.md
index f5e117d..e5cc664 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
-# grendel
+# naegling
 
-A reimplementation of [Beowulf](https://git.journeyman.cc/simon/beowulf) bootstrapped in C, with a compiler following, basically, [Abdulaziz Ghuloum's recipe](https://bernsteinbear.com/assets/img/11-ghuloum.pdf).
+A compiler for [Beowulf](https://git.journeyman.cc/simon/beowulf)  following, basically, [Abdulaziz Ghuloum's recipe](https://bernsteinbear.com/assets/img/11-ghuloum.pdf) and [Noah Zentzis' implementation thereof](https://generalproblem.net/lets_build_a_compiler/).
 
 ## Memory model
 
diff --git a/src/c/day1.c b/src/c/day1.c
index 28ed48d..b1c7432 100644
--- a/src/c/day1.c
+++ b/src/c/day1.c
@@ -1,7 +1,7 @@
 /**
  *  day1.c
  *
- *  Grendel: a compiling Beowulf reimplementation.
+ *  Naegling: a compiling Beowulf reimplementation.
  *
  *  Day 1 of work towards a compiler... eventually...
  *
diff --git a/src/c/error.c b/src/c/error.c
index 9515e8c..7be53fa 100644
--- a/src/c/error.c
+++ b/src/c/error.c
@@ -1,7 +1,7 @@
 /**
  *  error.c
  *
- *  Grendel: a compiling Beowulf reimplementation.
+ *  Naegling: a compiling Beowulf reimplementation.
  *
  *  The error handling subsystem.
  *
diff --git a/src/c/error.h b/src/c/error.h
index f603941..6ae68fb 100644
--- a/src/c/error.h
+++ b/src/c/error.h
@@ -1,7 +1,7 @@
 /**
  *  error.h
  *
- *  Grendel: a compiling Beowulf reimplementation.
+ *  Naegling: a compiling Beowulf reimplementation.
  *
  *  The error handling subsystem.
  *
@@ -13,8 +13,8 @@
  *  Licensed under GPL version 2.0, or, at your option, any later version.
  */
 
-#ifndef __grendel_error_h
-#define __grendel_error_h
+#ifndef __naegling_error_h
+#define __naegling_error_h
 
 #include <stdint.h>
 
diff --git a/src/c/lisp.c b/src/c/lisp.c
index 8b19cd2..ea4ce6b 100644
--- a/src/c/lisp.c
+++ b/src/c/lisp.c
@@ -1,7 +1,7 @@
 /**
  *  lisp.c
  *
- *  Grendel: a compiling Beowulf reimplementation.
+ *  Naegling: a compiling Beowulf reimplementation.
  *
  *  The compiler... eventually..
  *
diff --git a/src/c/memory.h b/src/c/memory.h
index 6fe3c6d..2ed4a9a 100644
--- a/src/c/memory.h
+++ b/src/c/memory.h
@@ -1,7 +1,7 @@
 /**
  *  memory.h
  *
- *  Grendel: a compiling Beowulf reimplementation.
+ *  Naegling: a compiling Beowulf reimplementation.
  *
  *  The memory management subsystem.
  *
@@ -9,8 +9,8 @@
  *  Licensed under GPL version 2.0, or, at your option, any later version.
  */
 
-#ifndef __grendel_memory_h
-#define __grendel_memory_h
+#ifndef __naegling_memory_h
+#define __naegling_memory_h
 
 #include <stdint.h>
 
diff --git a/src/c/naegling.c b/src/c/naegling.c
new file mode 100644
index 0000000..5a3b302
--- /dev/null
+++ b/src/c/naegling.c
@@ -0,0 +1,44 @@
+/**
+ *
+ * naegling.c
+ *
+ * Naegling: a compiling Beowulf reimplementation.
+ *
+ * The memory management subsystem.
+ *
+ * (c) 2026 Simon Brooke <simon@journeyman.cc>
+ * Licensed under GPL version 2.0, or, at your option, any later version.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
+
+#include "memory.h"
+#include "version.h"
+
+__attribute__((__cdecl__))
+extern int lisp_entry();
+
+
+void showbits( unsigned int x )
+{
+    int i=0;
+    for (i = (sizeof(int) * 8) - 1; i >= 0; i--)
+    {
+       putchar(x & (1u << i) ? '1' : '0');
+    }
+    printf("\n");
+}
+
+int main(int argc, char **argv) {
+
+	printf( "Naegling, a compiler for Beowulf: version %s\n", VERSION);
+
+    int val = lisp_entry();
+    printf("%d\n", val);
+    return 0;
+}
+
+	return 0;
+}
diff --git a/src/c/version.h b/src/c/version.h
index 17656c8..fcce6e1 100644
--- a/src/c/version.h
+++ b/src/c/version.h
@@ -1,14 +1,14 @@
 /**
  *  version.h
  *
- *  Grendel: a compiling Beowulf reimplementation.
+ *  Naegling: a compiling Beowulf reimplementation.
  *
  *  (c) 2026 Simon Brooke <simon@journeyman.cc>
  *  Licensed under GPL version 2.0, or, at your option, any later version.
  */
 
-#ifndef __grendel_version_h
-#define __grendel_version_h
+#ifndef __naegling_version_h
+#define __naegling_version_h
 
 #define VERSIOM "Aelfhere"
 
diff --git a/src/guile/memory.scm b/src/guile/memory.scm
index f92a918..7911ff4 100644
--- a/src/guile/memory.scm
+++ b/src/guile/memory.scm
@@ -2,7 +2,7 @@
 ;;
 ;;  memory.scm
 ;;
-;;  Grendel: a compiling Beowulf reimplementation.
+;;  Naegling: a compiling Beowulf reimplementation.
 ;;
 ;;  The memory management subsystem.
 ;;