diff --git a/TODO.org b/TODO.org
index c54bcdc7..6fc9c65a 100644
--- a/TODO.org
+++ b/TODO.org
@@ -10,6 +10,11 @@ pointing at it. A CANCELLED entry carries the one-line reason, because an idea
 rejected without a record is an idea that gets re-proposed.
 
 * Language surface
+** TODO .fln cannot write some forms the prelude needs
+Found porting the prelude (2026-09-26): =declare= has no statement form; a quasiquote
+in the middle of an expression needs =quasiquote(...)=; =if not x= plus a block reads as
+=when=, so a template wanting =(if c (do …))= keeps call syntax; a spliced let binding
+list needs =let([…]):=. Each needs a .fln spelling now that .fln is the only syntax.
 ** CANCELLED rand-int returns i64
 Decided 2026-09-26 (134): rand-int stays u64; write rand-int-range(lo, hi) for a signed
 range.