diff --git a/docs/TODO b/docs/TODO
index 578eb8f..ff8629e 100644
--- a/docs/TODO
+++ b/docs/TODO
@@ -6,23 +6,29 @@ If you see modifications to this file in git status, IGNORE them and do not comm
 
 
 === next steps ===
-    - debug maneuver at periapsis
-    - add reset/load new config UI control
-    - UI fixes
+    - work on maneuver interpolation. see docs/planning/hohmann-rendezvous-quantization-fix.md
+    - simulation propagation refactor: see docs/planning/propagation_refactor.md
+        - need to make, and possibly save in scripts/, a separate propagation
+            simulation to generate pre-computed values we can use in test cases
+        - debug maneuver at periapsis (fixed?)
+    - interplanetary transfers
     - SOI boundary testing
         - draw SOI boundry in graphical sim
-    - interplanetary transfers
+
     - reorganize project into static library. easier for testing/llm doc generation,
         and will be easier to try out new graphics/UI libraries
         - can then better work on code cleaning issues, FIXMEs etc
-    - work on maneuver interpolation. see docs/planning/hohmann-rendezvous-quantization-fix.md
+    - remove tests/informational/*
+    - remove RK4 integration implementation?
+    - refactor tests and check logic for edge cases
+
+    - add reset/load new config UI control
+    - UI fixes
+
+    - add more documentation for the LLM to use 'make test-build' and run individual tests
     - write out/fix inline code docs with the documentation generation script, and review
         - can then work on a better method for commenting/detecting changes via script
-    - simulation propagation refactor: see docs/planning/propagation_refactor.md
-        - need to make, and possibly save in scripts/, a separate propagation
-            simulation to generate pre-computed values we can use in test cases
-    - add more documentation for the LLM to use 'make test-build' and run individual tests
-
+    - move summary docs to separate folder and combine into a big 'API reference' doc
 
 
 === Project Documentation ===