diff --git a/vacuum_gambit.p8 b/vacuum_gambit.p8
index beb4fda..6131749 100644
--- a/vacuum_gambit.p8
+++ b/vacuum_gambit.p8
@@ -1449,6 +1449,25 @@ function collider:get_collisions(item)
  end
  return found
 end
+
+-->8
+-- flotillas
+
+-- a template for a wave, read
+-- from the map. each ship can
+-- alternate between "attack"
+-- and "formation" modes, like
+-- galaxian or galaga. ships
+-- with different roles have
+-- different rules for becoming
+-- aggressive, but aggression
+-- ramps up during the wave.
+
+-- flotilla placeholders are
+-- defined by sprite flags.
+-- see obsidian vault for
+-- full docs.
+
 -->8
 -- level and event system
 
@@ -2106,21 +2125,21 @@ cddddddddddd0000cddddddddddd0000cddddddddddd0000cddddddddddd0000cddddddddddd0000
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