chore(book): build script + remove openssl (#316)

book/generating-proofs/basics.md

@@ -13,3 +13,18 @@ To make this more concrete, let's walk through a simple example of generating a
 ```rust,noplayground
 {{#include ../../examples/fibonacci-io/script/src/main.rs}}
 ```
+
+## Build Script
+
+If you want your program crate to be built automatically whenever you build/run your script crate, you can add a `build.rs` file inside of `script/`:
+
+```rust,noplayground
+{{#include ../../examples/fibonacci-io/script/build.rs}}
+```
+
+Make sure to also add `sp1-helper` as a build dependency in `script/Cargo.toml`:
+
+```toml
+[build-dependencies]
+sp1-helper = { git = "https://github.com/succinctlabs/sp1.git" }
+```

book/getting-started/install.md

@@ -3,10 +3,12 @@
 SP1 currently runs on Linux and macOS. You can either use prebuilt binaries through sp1up or
 build the toolchain and CLI from source.
 
-Make sure you have [Rust](https://www.rust-lang.org/tools/install) and OpenSSL 1.1 (`brew install openssl@1.1` or use this [guide](https://askubuntu.com/questions/1102803/how-to-upgrade-openssl-1-1-0-to-1-1-1-in-ubuntu-18-04)) installed.
+Make sure you have [Rust](https://www.rust-lang.org/tools/install) installed.
 
 ## Option 1: Prebuilt Binaries (Recommended)
 
+Currently our prebuilt binaries are built on Ubuntu 20.04 (22.04 on ARM) and macOS. If your OS uses an older GLIBC version, it's possible these may not work and you will need to [build the toolchain from source](#option-2-building-from-source).
+
 sp1up is the SP1 toolchain installer. Open your terminal and run the following command and follow the instructions:
 
 ```bash