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README.md

@@ -2,10 +2,11 @@
 
 Container images containing [esp-rs](https://github.com/esp-rs) related tooling, intended for use with [Distrobox](https://github.com/89luca89/distrobox).
 
-Created as a result of much annoyance trying to get the ESP IDF to build in Nix and (to a much lesser extent) the fact that some tools were not yet packaged.
+Created as a result of much annoyance trying to get the ESP-IDF to build in Nix and (to a much lesser extent) the fact that some tools were not yet packaged.
+Only the items that could not be managed via Nix are included.
 
 Included is:
   - clang
-  - Python + venv
-  - [espup](https://github.com/esp-rs/espup)
-  - [ldproxy](https://github.com/esp-rs/embuild/tree/master/ldproxy)
+  - Python + venv (ESP-IDF's "is this a venv" check fails as it does not seem to like Nix directory prefixes)
+  - [espup](https://github.com/esp-rs/espup) (not packaged for Nix)
+  - [ldproxy](https://github.com/esp-rs/embuild/tree/master/ldproxy) (not packaged for Nix)