diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5d09893f..f332558e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -80,30 +80,30 @@ set(DOX_EXCLUDE_PATTERNS [=[
 
 add_subdirectory(xo-cmake)
 add_subdirectory(xo-indentlog)
-add_subdirectory(xo-reflectutil)  # header-only reflect support
+add_subdirectory(xo-subsys)
+add_subdirectory(xo-flatstring)
 add_subdirectory(xo-randomgen)    # xoshiro256ss
+add_subdirectory(xo-reflectutil)  # header-only reflect support
 add_subdirectory(xo-arena)        # arena allocator (DArena)
 add_subdirectory(xo-facet)        # sep iface,data
 add_subdirectory(xo-printable2)   # experiment w/ facet object model
+add_subdirectory(xo-testutil)     # unit test aux functions
+add_subdirectory(xo-alloc2)       # experiment w/ facet object model
+add_subdirectory(xo-refcnt)
+add_subdirectory(xo-reflect)
+add_subdirectory(xo-stringtable2) # experiment w/ facet object model
+add_subdirectory(xo-object2)      # experiment w/ facet object model
 add_subdirectory(xo-gc)           # experiment w/ facet object model
 add_subdirectory(xo-allocutil)
-add_subdirectory(xo-refcnt)
-add_subdirectory(xo-subsys)
-add_subdirectory(xo-testutil)     # unit test aux functions
-add_subdirectory(xo-flatstring)
 add_subdirectory(xo-pyutil)
-add_subdirectory(xo-reflect)
 add_subdirectory(xo-pyreflect)
 add_subdirectory(xo-ratio)
 add_subdirectory(xo-unit)
 add_subdirectory(xo-pyunit)
 add_subdirectory(xo-callback)
 add_subdirectory(xo-alloc)
-add_subdirectory(xo-alloc2)       # experiment w/ facet object model
-add_subdirectory(xo-stringtable2) # experiment w/ facet object model
 #add_subdirectory(xo-reflect2)     # experiment w/ facet object model
 add_subdirectory(xo-object)
-add_subdirectory(xo-object2)      # experiment w/ facet object model
 add_subdirectory(xo-type)         # experiment w/ fomo
 add_subdirectory(xo-procedure2)   # schematika procedure abstraction + runtime context (fomo)
 add_subdirectory(xo-numeric)      # experiment w/ facet object model