because it is more descriptive

@@ -83,6 +83,7 @@
     devShell = pkgs.mkShell {
       RUST_SRC_PATH = "${pkgs.rustPlatform.rustLibSrc}";
       NIX_PATH = "nixpkgs=${pkgs.path}";
+      PROTOC = "${pkgs.protobuf}/bin/protoc";

@@ -0,0 +72,4 @@
+    targets: Arc<Mutex<HashMap<Id, TH>>>,
+}
+
+impl<TH, AT, BT, CT> ActivationServiceImpl<TH, AT, BT, CT>

@@ -0,0 +8,4 @@
+  RequestHeader header = 1;
+  string toplevel = 2;
+  ApplyType apply_type = 3;
+  bool reboot = 4;

@@ -0,0 +6,4 @@
+message BuildRequest {
+  RequestHeader header = 1;
+  string derivation = 2;
+  bool remote = 3;

@@ -0,0 +36,4 @@
+    /// The gRPC connection to the activation program
+    grpc_client: ActivationClient<Channel>,
+
+    session_id: String,

@@ -0,0 +70,4 @@
+
+        let mut grpc_client = None;
+
+        for _ in 0..5 {

@@ -0,0 +106,4 @@
+                header: Some(RequestHeader {
+                    session_id: self.session_id.clone(),
+                }),
+                derivation: derivation.as_path().to_str().unwrap().to_string(),

@@ -0,0 +195,4 @@
+                }),
+                store_path: closure
+                    .as_path()
+                    .as_os_str()

@@ -0,0 +1,109 @@
+#![allow(clippy::pedantic)]
+tonic::include_proto!("colmena.activation");
+
+pub trait HeadedResponse {

@@ -0,0 +63,4 @@
+    }
+
+    fn from_header(header: ResponseHeader) -> Self {
+        let new_store_path = if header.msg.starts_with("/nix/store") {

@@ -0,0 +250,4 @@
+
+        let session_id = Id(id);
+
+        let mut lock = self.targets.lock().await;

@@ -0,0 +162,4 @@
+            }
+        };
+
+        let lock = self.targets.lock().await;

@@ -0,0 +257,4 @@
+            session_id: session_id
+                .0
+                .iter()
+                .fold(String::new(), |s, i| format!("{s}{i:02x}")),

@@ -0,0 +94,4 @@
+    .lines();
+
+    loop {
+        for stderr_line in stderr.by_ref() {

@@ -0,0 +20,4 @@
+    },
+}
+
+impl TryFrom<Url> for TargetHost {

@@ -0,0 +10,4 @@
+import "copy_closure_request.proto";
+import "copy_closure_response.proto";
+
+service Activation {