Categories are now a mapping of architecture to list of hardware categories

[cole-h]

This allows adding arbitrary categories to supplement others.

Tested by panicking before hitting the EM API.

[cole-h]

diff --git a/src/main.rs b/src/main.rs
index 467b7be..6ce6ae0 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -30,10 +30,12 @@ struct Cli {
 async fn main() -> Result<()> {
     let args = Cli::parse();
 
-    let equinix_auth_token =
-        std::env::var("METAL_AUTH_TOKEN").expect("Please set METAL_AUTH_TOKEN");
-    let equinix_project_id =
-        std::env::var("METAL_PROJECT_ID").expect("Please set METAL_PROJECT_ID");
+    let equinix_auth_token = std::env::var("METAL_AUTH_TOKEN").unwrap_or_default();
+    let equinix_project_id = std::env::var("METAL_PROJECT_ID").unwrap_or_default();
+    // let equinix_auth_token =
+    //     std::env::var("METAL_AUTH_TOKEN").expect("Please set METAL_AUTH_TOKEN");
+    // let equinix_project_id =
+    //     std::env::var("METAL_PROJECT_ID").expect("Please set METAL_PROJECT_ID");
 
     real_main(
         equinix_auth_token,
@@ -69,6 +71,8 @@ async fn real_main(
     let mut desired_hardware =
         hardware::get_desired_hardware(&http_client, &hydra_root, &config_file).await?;
     let desired_tags = BTreeSet::from_iter(desired_hardware.tags.iter());
+    dbg!(&desired_hardware);
+    panic!();
 
     let mut all_devices: Vec<device::Device> =
         device::get_all_devices(&http_client, &equinix_auth_token, &equinix_project_id)

here's the diff I tested with. cargo r -- --config-file ./hardware_categories.json should print out the list of builders we'd try to bid for.