OK! Install the CMake Tools (Microsoft)

It allows you to click on the bottom status
bar (to check build type Debug/Release/...)
Build button, builds with cmake.

The hardest/weirdest part is configuring the debugger.

"program": "${workspaceFolder}/build/hharry",

Set it up with ${workspaceFolder}/build/FINAL_EXE_NAME
Set a breakpoint on the line you want to stop on, and
Run, Start Debugging.  gdb (launch)

CMakeLists.txt

@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.10)
 
-project(MyProject)
+project(horrible-harry)
 
 
 ###########
@@ -102,10 +102,11 @@ add_executable(ansi-to-src ansi-to-src.cpp utils.cpp)
 add_executable(images images.cpp utils.cpp images.h)
 target_link_libraries(images zf_log)
 
+# Or possibly ./build_images.sh
 
 add_custom_command(
     OUTPUT images.h
-    COMMAND ./build_images.sh
+    COMMAND ../build_images.sh
     DEPENDS ansi-to-src ghost.ans ghead.ans wolf.ans panther.ans bat.ans skull.ans skull-blink.ans icu.ans
     COMMENT "Generating images.h."
 )