Add immutability TODO

diff --git a/TODO b/TODO
index 7ed9380..14ce429 100644 (file)
--- a/TODO
+++ b/TODO
@@ -38,3 +38,5 @@
     - calls user-configured command to upload user's own feed file to their server
   Looks like a better CLI parser than "racket/cmdline": https://docs.racket-lang.org/natural-cli/
   But it is no longer necessary now that I've figured out how to chain (command-line ..) calls.
+- [ ] Suport immutable timelines
+    - store individual messages (possibly in something like DBM or SQLite)