improve instructions

README.md

@@ -3,14 +3,50 @@
 Simple WireGuard Access Server
 
 
-## Quickstart
+## Installation
+
+The application depends on the `WireGuard` package for the `wg` and `wg-quick` command line tools:
 
 ```
+# Ubuntu
 sudo add-apt-repository ppa:wireguard/wireguard -y
 sudo apt install wireguard -y
-sudo umask 077
+
+# macOS
+brew install wireguard-tools
+```
+
+This is a Rust application so install via `rustup`:
+
+```
 curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
+```
+
+
+Install the repo:
+
+```
 git clone https://github.com/lalanza808/wgas-rs && cd wgas-rs
 rustup override set nightly
 cargo run
 ```
+
+```
+
+From there set environment variables:
+
+```
+export WGAS_ENDPOINT=127.0.0.1
+export WGAS_SUDO=false
+export WGAS_DNS=1.1.1.1 # set to dns you control if possible
+export WGAS_ROUTE=0.0.0.0/0
+export WGAS_PORT=51820
+export WGAS_PUBKEY=$(wg genkey | wg pubkey)
+```
+
+and use `cargo` to run the dev server or build production release binaries:
+
+```
+cargo run
+cargo build --release # outputs to ./target/release/<package_nae>
+```