Update dependencies and enhance README for RP2040 support

README.md

@@ -84,6 +84,9 @@ flatpak run org.example.rustdevshell
 | **minicom** | Serial terminal for device output |
 | **elf2uf2-rs** | Convert ELF to UF2 format (RP2040) |
 | **picotool** | Pico-specific firmware operations |
+| **cargo-binutils** | LLVM tools for size and object analysis |
+| **flip-link** | Stack overflow protection for embedded |
+| **tea** | Gitea CLI for repository management |
 
 ## Testing & Development Features
 
@@ -107,6 +110,9 @@ cargo fmt
 
 # Build for embedded target
 cargo build --target thumbv6m-none-eabi --release
+
+# Analyze binary size
+cargo size --target thumbv6m-none-eabi --release
 ```
 
 ## Project Layout