nix: re-export personal packages in flake outputs

flake.nix

@@ -1,15 +1,43 @@
 {
-  description = "A personal package overlay";
+  # «https://github.com/notashelf/nyxexprs»
+  description = "Personal package overlay for commonly used derivations";
 
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
-    flake-parts.url = "github:hercules-ci/flake-parts";
     systems.url = "github:nix-systems/default-linux";
+    flake-parts = {
+      url = "github:hercules-ci/flake-parts";
+      inputs.nixpkgs-lib.follows = "nixpkgs";
+    };
 
     flake-compat = {
       url = "github:edolstra/flake-compat";
       flake = false;
     };
+
+    # Rest of my packages will be constructed from previous flakes
+    watt = {
+      url = "github:NotAShelf/watt";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
+    flint = {
+      url = "github:NotAShelf/flint";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
+    inquisitor = {
+      url = "github:NotAShelf/inquisitor";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
+    wiremix = {
+      url = "github:tsowell/wiremix";
+      inputs = {
+        nixpkgs.follows = "nixpkgs";
+        systems.follows = "systems";
+      };
+    };
   };
 
   outputs = {
@@ -24,12 +52,13 @@
 
       perSystem = {
         system,
+        inputs',
         config,
         pkgs,
         lib,
         ...
       }: let
-        inherit (builtins) concatStringsSep match;
+        inherit (builtins) concatStringsSep match listToAttrs;
         inherit (lib.attrsets) recursiveUpdate;
         inherit (lib.filesystem) packagesFromDirectoryRecursive;
         inherit (lib.customisation) callPackageWith;
@@ -43,18 +72,45 @@
         };
 
         overlayAttrs = config.packages;
-        packages = packagesFromDirectoryRecursive {
-          callPackage = callPackageWith (recursiveUpdate pkgs {inherit pins date;});
-          directory = ./pkgs;
-        };
+        packages = let
+          base = packagesFromDirectoryRecursive {
+            callPackage = callPackageWith (recursiveUpdate pkgs {inherit pins date;});
+            directory = ./pkgs;
+          };
+
+          # Borrowed diniamo/niqspkgs, with love <3
+          # (and without useless pipe operators)
+          fromInputs = [
+            # My packages
+            "watt"
+            "flint"
+            "inquisitor"
+
+            # 3rd party packages
+            "wiremix"
+          ];
+
+          mappedPkgs = listToAttrs (map (input: {
+              name = input;
+              value = inputs'.${input}.packages.default;
+            })
+            fromInputs);
+        in
+          base // mappedPkgs;
 
         formatter = config.packages.alejandra-custom;
         devShells = {
-          default = self.devShells.${system}.npins;
-          npins = pkgs.mkShellNoCC {
+          default = pkgs.mkShellNoCC {
+            name = "nyxexprs";
             packages = [pkgs.npins];
           };
         };
       };
     };
+
+  # This is so that you don't have to compile Alejandra.
+  nixConfig = {
+    extra-substituters = ["https://nyx.cachix.org"];
+    extra-trusted-public-keys = ["nyx.cachix.org-1:xH6G0MO9PrpeGe7mHBtj1WbNzmnXr7jId2mCiq6hipE"];
+  };
 }