diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 234700846..2be36b1d8 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -61,7 +61,7 @@ ensure a consistent code style for C.
 
 ## Janet style
 
-All janet code in the project should be formatted similar to the code in core.janet.
+All janet code in the project should be formatted similar to the code in src/boot/boot.janet.
 The auto formatting from janet.vim will work well.
 
 ## Typo Fixing and One-Line changes
diff --git a/Makefile b/Makefile
index 6e7033241..acacc0c42 100644
--- a/Makefile
+++ b/Makefile
@@ -261,6 +261,7 @@ $(JANET_STATIC_LIBRARY): $(JANET_TARGET_OBJECTS)
 # Testing assumes HOSTCC=CC
 
 TEST_SCRIPTS=$(wildcard test/suite*.janet)
+EXAMPLE_SCRIPTS=$(wildcard examples/*.janet)
 
 repl: $(JANET_TARGET)
 	$(RUN) ./$(JANET_TARGET)
@@ -268,21 +269,26 @@ repl: $(JANET_TARGET)
 debug: $(JANET_TARGET)
 	$(DEBUGGER) ./$(JANET_TARGET)
 
-VALGRIND_COMMAND=valgrind --leak-check=full --quiet
+VALGRIND_COMMAND=$(RUN) valgrind --leak-check=full --quiet
+CALLGRIND_COMMAND=$(RUN) valgrind --tool=callgrind
 
 valgrind: $(JANET_TARGET)
 	$(VALGRIND_COMMAND) ./$(JANET_TARGET)
 
-test: $(JANET_TARGET) $(TEST_PROGRAMS)
+test: $(JANET_TARGET) $(TEST_SCRIPTS) $(EXAMPLE_SCRIPTS)
 	for f in test/suite*.janet; do $(RUN) ./$(JANET_TARGET) "$$f" || exit; done
 	for f in examples/*.janet; do $(RUN) ./$(JANET_TARGET) -k "$$f"; done
 
-valtest: $(JANET_TARGET) $(TEST_PROGRAMS)
+valtest: $(JANET_TARGET) $(TEST_SCRIPTS) $(EXAMPLE_SCRIPTS)
 	for f in test/suite*.janet; do $(VALGRIND_COMMAND) ./$(JANET_TARGET) "$$f" || exit; done
-	for f in examples/*.janet; do ./$(JANET_TARGET) -k "$$f"; done
+	for f in examples/*.janet; do $(VALGRIND_COMMAND) ./$(JANET_TARGET) -k "$$f"; done
 
 callgrind: $(JANET_TARGET)
-	for f in test/suite*.janet; do valgrind --tool=callgrind ./$(JANET_TARGET) "$$f" || exit; done
+	$(CALLGRIND_COMMAND) ./$(JANET_TARGET)
+
+calltest: $(JANET_TARGET) $(TEST_SCRIPTS) $(EXAMPLE_SCRIPTS)
+	for f in test/suite*.janet; do $(CALLGRIND_COMMAND) ./$(JANET_TARGET) "$$f" || exit; done
+	for f in examples/*.janet; do $(CALLGRIND_COMMAND) ./$(JANET_TARGET) -k "$$f"; done
 
 ########################
 ##### Distribution #####
@@ -413,9 +419,6 @@ clean:
 	-rm -rf build vgcore.* callgrind.*
 	-rm -rf test/install/build test/install/modpath
 
-test-install:
-	echo "JPM has been removed from default install."
-
 help:
 	@echo
 	@echo 'Janet: A Dynamic Language & Bytecode VM'
@@ -427,7 +430,8 @@ help:
 	@echo '   make test       Test a built Janet'
 	@echo '   make valgrind   Assess Janet with Valgrind'
 	@echo '   make callgrind  Assess Janet with Valgrind, using Callgrind'
-	@echo '   make valtest    Run the test suite with Valgrind to check for memory leaks'
+	@echo '   make valtest    Run the test suite and examples with Valgrind to check for memory leaks'
+	@echo '   make calltest   Run the test suite and examples with Callgrind'
 	@echo '   make dist       Create a distribution tarball'
 	@echo '   make docs       Generate documentation'
 	@echo '   make debug      Run janet with GDB or LLDB'
@@ -437,6 +441,9 @@ help:
 	@echo "   make format     Format Janet's own source files"
 	@echo '   make grammar    Generate a TextMate language grammar'
 	@echo
+	@echo '   make install-jpm-git   Install jpm into the current filesystem'
+	@echo '   make install-spork-git Install spork into the current filesystem'
+	@echo
 
-.PHONY: clean install repl debug valgrind test \
-	valtest dist uninstall docs grammar format help compile-commands
+.PHONY: clean install install-jpm-git install-spork-git repl debug valgrind test \
+	valtest callgrind callgrind-test dist uninstall docs grammar format help compile-commands
diff --git a/src/boot/boot.janet b/src/boot/boot.janet
index fa21e55d2..9f7fd34ba 100644
--- a/src/boot/boot.janet
+++ b/src/boot/boot.janet
@@ -4934,14 +4934,15 @@
      "src/core/wrap.c"])
 
   # Print janet.c to stdout
-  (print "/* Amalgamated build - DO NOT EDIT */")
+  (def image-only (has-value? boot/args "image-only"))
+  (print "/* " (if image-only "Image-only" "Amalgamated") " build - DO NOT EDIT */")
   (print "/* Generated from janet version " janet/version "-" janet/build " */")
   (print "#define JANET_BUILD \"" janet/build "\"")
   (print ```#define JANET_AMALG```)
 
   (defn do-one-file
     [fname]
-    (unless (has-value? boot/args "image-only")
+    (unless image-only
       (print "\n/* " fname " */")
       (print "#line 0 \"" fname "\"\n")
       (def source (slurp fname))