docs: add orb-supervisor and orb-update-verifier to README (#214)

README.md

@@ -23,7 +23,9 @@ the orb's software. The most important applications on the orb are as follows:
   that interacts with the orb's secure element - a dedicated security hardened
   chip that provides a hardware root of trust. Provides important signing
   functionality.
+- [orb-supervisor](orb-supervisor): Manages device state across services.
 - [orb-ui](orb-ui): Daemon that manages the UI/UX of the orb.
+- [orb-update-verifier](orb-update-verifier): Verifies success of updates.
 - [open-iris](https://github.com/worldcoin/open-iris): The iris recognition
   inference system.
 

update-verifier/README.md

@@ -1,46 +1,9 @@
 # orb-update-verifier
+
 Checks general system health and manages the slot and rootfs state of the Orb.
 It is designed to run as systemd oneshot service that will run once on boot.
 
-## Systemd and integration
-The systemd service configuration can be found in `debpkg/lib/systemd/system/worldcoin-update-verifier.service` and 
-will be packaged together with the binary in CI.
-
-## Building
-
-### Prerequisites
-+ `rustup`: `1.25.2` (tested with 1.25, might work with older versions)
-+ `rustc`: `1.67.0`
-+ `ziglang`: `0.10.1`
-
-Using Arch Linux as an example, you can install `ziglang` and `rustup` using pacman, and in turn
-get the most recent version of `rustc`:
-
-```sh
-$ sudo pacman -S zig rustup
-$ rustup install stable
-```
-
-```sh
-$ brew install zig rustup-init
-$ rustup-init
-```
-
-The easiest way to cross-compile for the orb is to use `cargo-zigbuild`, which
-in turn relies on ziglang's tooling to act as a linker.
-
-```sh
-$ rustup target add aarch64-unknown-linux-gnu
-$ cargo install cargo-zigbuild
-```
-
-### Compiling
-
-```sh
-$ cargo zigbuild --release --target aarch64-unknown-linux-gnu.2.27
-```
-
-### Testing
+## Testing
 
 Health test can be forced by setting environment variable `UPDATE_VERIFIER_DRY_RUN`.