Get repo working locally and add some docs

README.md

@@ -4,18 +4,26 @@ This library makes it possible to write React Native JSI modules in Rust.
 
 For an example, check out the `example` folder.
 
-# Contributing
+## Getting Started
+
+1. Clone this repo
+2. Run `git submodule init`
+3. Run `git submodule update`, this will ensure that all the vendor dependencies are cloned locally
+4. Make sure you have Ninja installed locally, which is necessary for building Hermes. You can find instructions [here](https://github.com/ninja-build/ninja/wiki/Pre-built-Ninja-packages). On macOS, you can install it with `brew install ninja`
+5. Check that you can build the project with `cargo build --release`
+
+## Contributing
 
 I wrote this code in winter 2022 as part of another project. A few months later,
 I have decided to release it to the world. However, I'm not planning to maintain
 it unless I encounter another project that requires it, so for now, the code is
 given to you as-is. Feel free to contribute PRs that would improve the API or
 stability of the library.
 
-# Safety
+## Safety
 
 Right now, this library is quite `unsafe`.
 
-# Copyright / license
+## Copyright / license
 
 Copyright Ibiyemi Abiodun. MIT License.

example/example-jsi-module/src/lib.rs

@@ -1,6 +1,5 @@
 use jsi::{
-    FromObject, FromValue, IntoValue, JsiFn, JsiObject, JsiString,
-    PropName, RuntimeHandle, JsiValue,
+    host_object, FromObject, FromValue, IntoValue, JsiFn, JsiObject, JsiString, JsiValue, PropName, RuntimeHandle
 };
 
 #[cfg(target_os = "android")]

jsi-tests/build.rs

@@ -1,4 +1,4 @@
-use std::{env, os::unix::process::CommandExt, path::PathBuf, process::Command};
+use std::{env, path::PathBuf, process::Command};
 
 fn main() {
     let pkg_base = env::var_os("CARGO_MANIFEST_DIR").unwrap();