fix: add pros-cli to flake and minor doc updates

README.md

@@ -27,9 +27,7 @@ The steps for getting pros-rs compiling are slightly different based on if you u
 
 #### With Nix
 
-The Nix flake contains the Arm Gnu Toolchain and cargo pros.
-Unfortunately pros-cli is not packaged for Nix so you will have to get it from a different package manager.
-Nixos users are, unfortunately, out of luck here.
+The Nix flake contains the Arm Gnu Toolchain, cargo pros, and pros-cli.
 
 There is a ``.envrc`` file included for Nix + Direnv users.
 

flake.nix

@@ -2,15 +2,18 @@
   inputs = {
     flake-utils.url = "github:numtide/flake-utils";
     cargo-pros.url = "github:pros-rs/cargo-pros";
+    pros-cli-nix.url = "github:BattleCh1cken/pros-cli-nix";
   };
 
-  outputs = { nixpkgs, flake-utils, cargo-pros, ... }:
+  outputs = { nixpkgs, flake-utils, cargo-pros, pros-cli-nix, ... }:
     (flake-utils.lib.eachDefaultSystem (system:
       let
         pkgs = nixpkgs.legacyPackages.${system};
         cargo-pros' = cargo-pros.packages.${system}.default;
+        pros-cli = pros-cli-nix.packages.${system}.default;
       in {
-        devShell =
-          pkgs.mkShell { buildInputs = with pkgs; [ gcc-arm-embedded-9 cargo-pros' ]; };
+        devShell = pkgs.mkShell {
+          buildInputs = with pkgs; [ gcc-arm-embedded-9 cargo-pros' pros-cli ];
+        };
       }));
 }

pros/src/async_runtime/mod.rs

@@ -1,3 +1,8 @@
+//! A tiny async runtime.
+//! 
+//! This runtime can be used outside of the main task, but it is reccomended to only use either
+//! real FreeRTOS tasks or this async runtime.
+
 use core::future::Future;
 
 use async_task::Task;

pros/src/error.rs

@@ -1,4 +1,5 @@
 //! Helpers for dealing with errno.
+//! 
 //! Most of the contents of this file are not public.
 
 pub(crate) fn take_errno() -> i32 {