implement cerulean.nexus.nodes

flake.nix

@@ -1,34 +1,85 @@
 {
   description = "Your Nix Cloud Simplified";
 
-  inputs = {
+  inputs = let
+    follows = following: {
+      inputs = builtins.listToAttrs (builtins.map (x: {
+          name = x;
+          value = {follows = x;};
+        })
+        following);
+    };
+  in {
+    systems.url = "github:nix-systems/default";
+
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
     nixpkgs-unstable.url = "github:NixOS/nixpkgs/nixos-unstable";
 
-    systems.url = "github:nix-systems/default";
-  };
-
-  outputs = inputs @ {
-    self,
-    systems,
-    nixpkgs,
-    ...
-  }: let
-    defaultSystems = ["aarch64-darwin" "aarch64-linux" "i686-linux" "x86_64-darwin" "x86_64-linux"];
-
-    forAllSystems = f:
-      nixpkgs.lib.genAttrs defaultSystems (system:
-        f system (import nixpkgs {
-          inherit system;
-          overlays = builtins.attrValues self.overlays;
-        }));
-  in {
-    overlays.default = final: prev: {
+    nib = {
+      url = "github:emileclarkb/nib";
+      inputs = follows ["systems"];
     };
 
-    checks = self.packages;
-    packages =
-      forAllSystems (system: pkgs: rec {
+    deploy-rs.url = "github:serokell/deploy-rs";
+  };
+
+  outputs = {
+    self,
+    nixpkgs,
+    nixpkgs-unstable,
+    nib,
+    deploy-rs,
+    ...
+  } @ inputs: let
+    lib = nixpkgs.lib;
+
+    sys = with nib;
+      mkUSys {
+        pkgs = withPkgs nixpkgs {
+          config.allowUnfree = false;
+          overlays = builtins.attrValues self.overlays;
+        };
+        upkgs = withPkgs nixpkgs-unstable {
+          config.allowUnfree = false;
+        };
+      };
+  in rec {
+    # overlays.default = final: prev: {
+    # };
+
+    # checks = self.packages;
+    # packages =
+    #   forAllSystems (system: pkgs: rec {
+    #   });
+
+    mkNexusConfig = config: let
+      mapNodes = f: lib.mapAttrs f config.nexus.nodes;
+    in rec {
+      nixosConfigurations = mapNodes (
+        name: node:
+          lib.nixosSystem {
+            system = node.system;
+            modules = node.modules;
+          }
+      );
+
+      deploy.nodes = mapNodes (name: node: {
+        hostname = name;
+        profiles.system = {
+          user = "root";
+          path = let
+            system = node.system;
+          in
+            deploy-rs.lib.${system}.activate.nixos nixosConfigurations.${system};
+        };
       });
+
+      checks = builtins.mapAttrs (system: deployLib: deployLib.deployChecks deploy) deploy-rs.lib;
+    };
+
+    mkNexus = outputs: let
+      config = outputs.cerulean;
+    in
+      (mkNexusConfig config) // (builtins.removeAttrs outputs ["cerulean"]);
   };
 }