Migrate README content to the mdbook

doc/installing-from-source.md

@@ -0,0 +1,43 @@
+# Installing from source
+
+Building Rayhunter from source, either for development or because the install script doesn't work on your system, involves a number of external dependencies. Unless you need to do this, we recommend you use our [compiled builds](https://github.com/EFForg/rayhunter/releases).
+
+* Install [nodejs/npm](https://docs.npmjs.com/downloading-and-installing-node-js-and-npm), which is required to build Rayhunter's web UI
+  * Make sure to build the site with `cd bin/web && npm install && npm run build` before building Rayhunter. If you're working directly on the frontend, `npm run dev` will allow you to test a local frontend with hot-reloading (use `http://localhost:5173` instead of `http://localhost:8080`).
+* Install ADB on your computer using the instructions above, and make sure it's in your terminal's PATH
+  * You can verify if ADB is in your PATH by running `which adb` in a terminal. If it prints the filepath to where ADB is installed, you're set! Otherwise, try following one of these guides:
+    * [linux](https://askubuntu.com/questions/652936/adding-android-sdk-platform-tools-to-path-downloaded-from-umake)
+    * [macOS](https://www.repeato.app/setting-up-adb-on-macos-a-step-by-step-guide/)
+    * [Windows](https://medium.com/@yadav-ajay/a-step-by-step-guide-to-setting-up-adb-path-on-windows-0b833faebf18)
+* Install `curl` on your computer to run the install scripts. It is not needed to build binaries.
+
+### Install Rust targets
+
+[Install Rust the usual way](https://www.rust-lang.org/tools/install). Then,
+
+- install the cross-compilation target for the device rayhunter will run on:
+```sh
+rustup target add armv7-unknown-linux-musleabihf
+```
+
+- install the statically compiled target for your host machine to build the binary installer [`serial`](./serial).
+```sh
+# check which toolchain you have installed by default with
+rustup show
+# now install the correct variant for your host platform, one of:
+rustup target add x86_64-unknown-linux-musl
+rustup target add aarch64-unknown-linux-musl
+rustup target add aarch64-apple-darwin
+rustup target add x86_64-apple-darwin
+rustup target add x86_64-pc-windows-gnu
+```
+
+Now you can root your device and install Rayhunter by running `./tools/install-dev.sh`
+
+### If you're on Windows or can't run the install scripts
+
+* Root your device on Windows using the instructions here: <https://xdaforums.com/t/resetting-verizon-orbic-speed-rc400l-firmware-flash-kajeet.4334899/#post-87855183>
+* Build the web UI using `cd bin/web && npm install && npm run build`
+* Push the scripts in `scripts/` to `/etc/init.d` on device and make a directory called `/data/rayhunter` using `adb shell` (and sshell for your root shell if you followed the steps above)
+* You also need to copy `config.toml.example` to `/data/rayhunter/config.toml`
+* Then run `./make.sh`, which will build the binary, push it over adb, and restart the device. Once it's restarted, Rayhunter should be running!