diff --git a/README.md b/README.md
index 89b1923..dc456a3 100644
--- a/README.md
+++ b/README.md
@@ -136,15 +136,18 @@ you need a name that differs from the proc.
 
 ### ABI format
 
-The default wire format is `cbor`. Override the library default with
-`declareLibrary("lib", Lib, defaultABIFormat = "c")`, or per annotation with an
-`"abi = ..."` spec, e.g. `{.ffi: "abi = c".}`.
+The wire format is chosen **in code**, never by a compile flag. Override the
+library default with `declareLibrary("lib", Lib, defaultABIFormat = "c")`, or
+per annotation with an `"abi = ..."` spec, e.g. `{.ffi: "abi = c".}`. The
+`-d:targetLang` flag (below) picks which *language* the bindings are emitted
+for; it does not change the wire.
 
-`cbor` is the fully-supported format: every proc, ctor, dtor and event
-serializes through the generic CBOR path, and all four binding backends emit
+`cbor` is the default and fully-supported format: every proc, ctor, dtor and
+event serializes through the generic CBOR path, and all binding generators emit
 working callers for it.
 
-`abi = c` (flat C-struct wire, generated by `-d:targetLang=c_abi`) is newer and
+`abi = c` is a newer, flat C-struct wire (no CBOR round-trip). Callers for it
+are emitted only by the dedicated `c_abi` generator (`-d:targetLang=c_abi`). It
 carries two honest limits today:
 
 - **Events are CBOR-only.** Applying `abi = c` to an `{.ffiEvent.}` proc is a
@@ -153,10 +156,10 @@ carries two honest limits today:
 - **All-scalar `abi = c` procs are dropped from the foreign bindings.** A
   `{.ffi: "abi = c".}` method whose every param and return is a plain scalar
   takes the CBOR-free scalar fast path at runtime, but the foreign codegen for
-  that inline-args shape is a follow-up — such procs are omitted from the
-  generated `.h`. Give a proc at least one non-scalar (struct / `seq` /
-  `Option`) param or return, or use `abi = cbor`, if you need it in the
-  bindings.
+  that inline-args shape is a follow-up (tracked in #120) — such procs are
+  omitted from the generated `.h`. Give a proc at least one non-scalar
+  (struct / `seq` / `Option`) param or return, or use `abi = cbor`, if you need
+  it in the bindings.
 
 ## Placement of `genBindings()`
 
@@ -184,7 +187,9 @@ nim c --app:lib --noMain --nimMainPrefix:libmylib mylib.nim
 
 **2. Emit the foreign bindings** — same flags, plus the binding defines. This
 compile runs the generators as a compile-time side effect and produces no
-runnable output, so send the binary to `/dev/null`:
+runnable output, so send the binary to `/dev/null`. The generated files (for
+`targetLang=c`/`c_abi`: the `<name>.h` header your host includes, plus a
+`CMakeLists.txt`) land in `-d:ffiOutputDir`:
 
 ```sh
 nim c --app:lib --noMain --nimMainPrefix:libmylib \
@@ -193,7 +198,11 @@ nim c --app:lib --noMain --nimMainPrefix:libmylib \
       -o:/dev/null mylib.nim
 ```
 
-- `-d:targetLang` — `rust` (default), `cpp`, `c`, `c_abi`, or `cddl`.
+- `-d:targetLang` — which generator runs. Two kinds:
+  - **Language bindings over the CBOR wire:** `rust` (default), `cpp`, `c`.
+  - **Non-peer generators:** `c_abi` — C bindings that speak the flat `abi = c`
+    wire instead of CBOR; `cddl` — a CDDL schema of the CBOR wire, not a
+    language binding at all.
 - `-d:ffiOutputDir` — where the generated files land.
 - `-d:ffiSrcPath` — the Nim source path embedded in the generated build files.