XS: documentation

doc/build.md

@@ -5,7 +5,7 @@
 - Install Docker
 - Pull the required containers as discussed in https://github.com/LedgerHQ/ledger-app-builder/ (lite container is sufficient for a C build):
 
-  `sudo docker pull ghcr.io/ledgerhq/ledger-app-builder/ledger-app-builder-lite:latest`
+  `docker pull ghcr.io/ledgerhq/ledger-app-builder/ledger-app-builder-lite:latest`
 
 ## Compiling the app
 

doc/features.md

@@ -0,0 +1,12 @@
+# Features (not) available on specific Ledger devices
+
+Nano S has a very limited space for storing applications. It is not enough to fit all Cardano features there, so some of them are only available on Nano S+ and other more spacious Ledger devices (e.g. Nano X and Stax).
+
+The features not supported on Nano S, Cardano app version 7 and above:
+* token minting/burning (but tokens can be included in transaction outputs)
+* pool registration and retirement
+* signing of operational certificates
+* computation of native script hashes
+* details in Byron change outputs (only the address is shown)
+
+Details can be found in [Makefile](../Makefile) and in the code (search for compilation flags beginning with `APP_FEATURE_`).