polkadot-sdk dev quick start guide for Ubuntu 24.04 System packages sudo apt install -y \ build-essential \ # for Rust protobuf-compiler \ # for protobuf schemas in litep2p libclang-common-18-dev # for librocksdb bindgen custom build (fixes "fatal error: 'stdarg.h' file not found") Rust curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh # see https://rustup.rs/ for up-to-date command rustup toolchain install nightly rustup target add wasm32-unknown-unknown # for WASM runtimes rustup component add rust-src --toolchain stable-x86_64-unknown-linux-gnu # for WASM runtimes