diff --git a/TODO.md b/TODO.md
index 32e994b..c470d46 100644
--- a/TODO.md
+++ b/TODO.md
@@ -1,14 +1,21 @@
-TODO:
+# TODO:
 
 - unify `BOEngine.__init__()`
 - BO train_x/y transfer between engines for single job
 - multi-GPU dispatcher
+    - synchronous batched BO
+    - asynchronous BO
 - template job sequences / yamls
     - mobo
 - metric() function(s) for each ptycho engine
     - FRC score
+- separate `config` into `bo_config` and `ptycho_config`; let `BOEngine` have no knowledge of ptychography and vice versa.
+- add GPU version of ExamplePtychoEngine
+- change `PtychoEngine.metric()` to accept list of names and return dict
+
+
+# TODAY:
+
 - fold_slice: load diffractions / hdf5 files; change only param per job
     - restructure `FoldSlicePtychoEngine.__init__()` to load data but not params
         - write new `prepare_data.m`
-- separate `config` into `bo_config` and `ptycho_config`; let `BOEngine` have no knowledge of ptychography and vice versa.
-- add GPU version of ExamplePtychoEngine
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