♻️ refactor layout, simplify flake.nix

nix/deploy.nix

@@ -0,0 +1,25 @@
+{ self, deploy-rs, ... }:
+let
+  mkDeploy = hostName:
+    let
+      inherit (self.hosts.${hostName}) type address system sshUser;
+      inherit (deploy-rs.lib.${system}) activate;
+    in
+    {
+      hostname = address;
+      profiles.system.user = "root";
+      profiles.system.sshUser = sshUser;
+      profiles.system.path = activate.${type} self."${type}Configurations".${hostName};
+    };
+in
+{
+  nodes = {
+    socrates = mkDeploy "socrates";
+    plato = mkDeploy "plato";
+    agent = mkDeploy "agent";
+    form = mkDeploy "form";
+    matter = mkDeploy "matter";
+    purpose = mkDeploy "purpose";
+    epicurus = mkDeploy "epicurus";
+  };
+}